Electronic load needed | Forum for Electronics

<!DOCTYPE html> <html id="XF" lang="en-US" dir="LTR" data-app="public" data-template="thread_view_type_question" data-container-key="node-38" data-content-key="thread-413112" data-logged-in="false" data-cookie-prefix="xf_" data-csrf="1732687310,0b67ad55346d2791e439d8324e42c3e4" class="has-no-js template-thread_view_type_question XenBase layout-classic style-light sidebar-rightside xb-toggle-default xb-sidebar-show" data-run-jobs=""> <head> <link rel="amphtml" href="https://www.edaboard.com/threads/electronic-load-needed.413112/?amp=1"> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover"> <meta name="google-site-verification" content="DV7LDR5buufweuAKIWGLTviodipCG_pt1IC6lBYZc_s" />  <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-MMC9PJ9');</script>   <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-5CSQHWF');</script>   <script type="text/javascript"> adroll_adv_id = "H6QSRTNYTVH7HE3332AG6H"; adroll_pix_id = "SLD62WUEQVGMFKFQ4GL5PT"; adroll_version = "2.0"; (function(w, d, e, o, a) { w.__adroll_loaded = true; w.adroll = w.adroll || []; w.adroll.f = [ 'setProperties', 'identify', 'track' ]; var roundtripUrl = "https://s.adroll.com/j/" + adroll_adv_id + "/roundtrip.js"; for (a = 0; a < w.adroll.f.length; a++) { w.adroll[w.adroll.f[a]] = w.adroll[w.adroll.f[a]] || (function(n) { return function() { w.adroll.push([ n, arguments ]) } })(w.adroll.f[a]) } e = d.createElement('script'); o = d.getElementsByTagName('script')[0]; e.async = 1; e.src = roundtripUrl; o.parentNode.insertBefore(e, o); })(window, document); adroll.track("pageView"); </script>   <script async src="https://securepubads.g.doubleclick.net/tag/js/gpt.js"></script> <script> window.googletag = window.googletag || {cmd: []}; googletag.cmd.push(function() { var pathParts = window.location.pathname.substr(1).split('/'); var mapLeaderboard = googletag.sizeMapping() .addSize([1024, 200], [728, 90]) .addSize([0, 0], [300, 250]) .build(); var mapWallpaper = googletag.sizeMapping() .addSize([1024, 200], [1, 1]) .addSize([0, 0], [[1, 1]]) .build(); var gptSlots = []; googletag.defineSlot('/5272491/ee_network/eda_customsearchbox', [300, 90], 'div-gpt-eda_customsearchbox').addService(googletag.pubads()); gptSlots[0] = googletag.defineSlot('/5272491/ee_network/eda_header', [728, 90], 'div-gpt-eda-header').defineSizeMapping(mapLeaderboard).addService(googletag.pubads()); gptSlots[1] = googletag.defineSlot('/5272491/ee_network/eda_thread1', [728, 90], 'div-gpt-eda_thread1').defineSizeMapping(mapLeaderboard).addService(googletag.pubads()); gptSlots[2] = googletag.defineSlot('/5272491/ee_network/eda_thread2', [728, 90], 'div-gpt-eda_thread2').defineSizeMapping(mapLeaderboard).addService(googletag.pubads()); googletag.defineSlot('/5272491/ee_network/eda_thread3', [[728, 90]], 'div-gpt-eda_thread3').addService(googletag.pubads()); gptSlots[3] = googletag.defineSlot('/5272491/ee_network/eda_wallpaper', [1, 1], 'div-gpt-eda_wallpaper').defineSizeMapping(mapWallpaper).addService(googletag.pubads()); googletag.defineSlot('/5272491/ee_network/eda_sidebar1', [[300, 250], [300, 600]], 'div-gpt-eda_sidebar1').addService(googletag.pubads()); googletag.defineSlot('/5272491/ee_network/eda_sidebarbottom', [[300, 250], [300, 600]], 'div-gpt-eda_sidebarbottom').addService(googletag.pubads()); googletag.pubads().enableSingleRequest(); googletag.pubads().collapseEmptyDivs(); googletag.pubads().setTargeting('articletitle', pathParts[0] ? pathParts[0] : 'home-page'); googletag.enableServices(); }); </script>  <title>Electronic load needed | Forum for Electronics</title> <link rel="manifest" href="/webmanifest.php"> <meta name="theme-color" content="#003300" /> <meta name="apple-mobile-web-app-title" content="Forum for Electronics"> <meta name="description" content="Hi there We are looking for best design an electronic load with power of 6000 watt Max volt is 0-400 volt resolution 0.1 volt Max current 0-100 amps..." /> <meta property="og:description" content="Hi there We are looking for best design an electronic load with power of 6000 watt Max volt is 0-400 volt resolution 0.1 volt Max current 0-100 amps resolution 0.1 amps The mode is CC" /> <meta property="twitter:description" content="Hi there We are looking for best design an electronic load with power of 6000 watt Max volt is 0-400 volt resolution 0.1 volt Max current 0-100 amps resolution 0.1 amps The mode is CC" /> <meta property="og:url" content="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <link rel="canonical" href="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <meta property="og:site_name" content="Forum for Electronics" /> <meta property="og:type" content="website" /> <meta property="og:title" content="Electronic load needed" /> <meta property="twitter:title" content="Electronic load needed" /> <link rel="preconnect" href="https://fonts.googleapis.com"><link rel="preconnect" href="https://fonts.gstatic.com" crossorigin><link href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;700&display=swap" rel="stylesheet"> <link rel="stylesheet" href="/css.php?css=public%3Anormalize.css%2Cpublic%3Afa.css%2Cpublic%3Acore.less%2Cpublic%3Aapp.less&s=9&l=1&d=1723721420&k=ce24df795bfe74f6e2e5ab381b380c6a9a6d5f02" /> <link rel="stylesheet" href="/css.php?css=public%3ACMTV_Math.less%2Cpublic%3Aattachments.less%2Cpublic%3Abb_code.less%2Cpublic%3Akl_amdp_merge_message.less%2Cpublic%3Alightbox.less%2Cpublic%3Amessage.less%2Cpublic%3Amrs_message.less%2Cpublic%3Anotices.less%2Cpublic%3Ashare_controls.less%2Cpublic%3AsvESE_autocomplete.less%2Cpublic%3Axb.less%2Cpublic%3Axb_search.less%2Cpublic%3Axb_welcome.less%2Cpublic%3Axcle_advanced_syntax.css%2Cpublic%3Axcle_latex.css%2Cpublic%3Axcpa_main.css%2Cpublic%3Axcpa_prestitial.css%2Cpublic%3Aextra.less&s=9&l=1&d=1723721420&k=39564bb4d7e3445613b4c67e2eb0aa6af6d24b80" /> <script src="/js/xf/preamble.min.js?_v=5941fcb1"></script> <link rel="icon" type="image/png" href="https://www.edaboard.com/favicon.ico" sizes="32x32" /> </head> <body data-template="thread_view_type_question"> <script> var GAMaccountID = 5272491 var GAMnetworkName = 'ee_network'; var GAMadUnitName = 'eda_prestitial'; var GAMadSizes = '300, 225\n 640, 480'; googletag.slots = googletag.slots || {}; </script> <a href="#main-content" class="visually-hidden focusable skip-link"> Skip to main content </a> <div id="prestitial" style="opacity: 0;"> <div id="prestitial-overlay"></div> <div id="prestitial-grid"> <div class="prestitial-logo"> <div class="title-area"> <div class="p-header-logo p-header-logo--image"> <a href="https://www.edaboard.com"> <img src="/styles/images/edaboard-logo-ot-253w.png" srcset="" alt="Forum for Electronics" width="253" height="34" /> </a> </div> </div> </div> <div class="close-cta"> Continue to Site <i class="fa fa-arrow-right"></i> </div> <div id="prestitial-banner"></div> </div> </div>  <div id="body-wrapper" style="opacity: 0;">  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-MMC9PJ9" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>   <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-5CSQHWF" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>  <div class="p-pageWrapper" id="top"> <div class="p-pageWrapper--helper"></div> <div class="xb-page-wrapper xb-canvas-menuActive"> <div class="xb-page-wrapper--helper"></div> <header class="p-header" id="header"> <div class="p-header-inner"> <div class="p-header-content"> <div class="p-header-logo p-header-logo--image"> <a href="https://www.edaboard.com"> <img src="/styles/images/edaboard-logo-ot-253w.png" srcset="/styles/images/edaboard-logo-ot-retina-506w.png 2x" alt="Forum for Electronics" width="253" height="34" /> </a> </div> <div class="xb-searchWrapper" id="xb-searchWrapper" tabindex="0"> <form action="/search/search" id="xbSearch" data-xf-init="quick-search" data-autocomplete-filter="null" data-autocomplete-filter="null" class="xb-search" method="post" data-no-auto-focus="true"> <input type="text" class="input" name="keywords" placeholder="Search…" aria-label="Search" /> <div class="menu menu--structural menu--search" aria-hidden="true"> <div class="menu-content"> <div class="menu-row"> <select name="constraints" class="js-quickSearch-constraint input" aria-label="Search within"> <option value="">Everywhere</option> <option value="{"search_type":"post"}">Threads</option> <option value="{"search_type":"post","c":{"nodes":[38],"child_nodes":1}}">This forum</option> <option value="{"search_type":"post","c":{"thread":413112}}" selected="selected">This thread</option> </select> </div> <div class="menu-row"> <label class="iconic"><input type="checkbox" name="c[container_only]" value="1" /><i aria-hidden="true"></i><span class="iconic-label">Search titles and first posts only</span></label> </div> <div class="menu-row"> <label class="iconic"><input type="checkbox" name="c[title_only]" value="1" /><i aria-hidden="true"></i><span class="iconic-label">Search titles only</span></label> </div> <div class="menu-row"> <div class="inputGroup"> <span class="inputGroup-text" id="ctrl_search_menu_by_member">By:</span> <input type="text" class="input" name="c[users]" data-xf-init="auto-complete" placeholder="Member" aria-labelledby="ctrl_search_menu_by_member" /> </div> </div> <div class="menu-footer"> <span class="menu-footer-controls"> <button type="submit" class="button--primary button button--icon button--icon--search"><span class="button-text">Search</span></button> <a href="/search/" class="button"><span class="button-text">Advanced search…</span></a> </span> </div> <input type="hidden" name="_xfToken" value="1732687310,0b67ad55346d2791e439d8324e42c3e4" /> </div> </div> </form> </div> </div> </div> </header> <div class="xb-content-wrapper"> <div class="navigation-helper"></div> <div class="p-navSticky p-navSticky--primary" data-xf-init="sticky-header"> <div class="p-nav--wrapper"> <nav class="p-nav"> <div class="p-nav-inner"> <button type="button" class="button--plain p-nav-menuTrigger button" data-xf-click="off-canvas" data-menu=".js-headerOffCanvasMenu" tabindex="0" aria-label="Menu"><span class="button-text"> <i aria-hidden="true"></i> </span></button> <div class="p-nav-smallLogo"> <a href="https://www.edaboard.com"> <img src="/styles/images/edaboard-logo-ot-253w.png" srcset="" alt="Forum for Electronics" width="253" height="34" /> </a> </div> <div class="p-nav-scroller hScroller" data-xf-init="h-scroller" data-auto-scroll=".p-navEl.is-selected"> <div class="hScroller-scroll"> <ul class="p-nav-list js-offCanvasNavSource"> <li class="navforums"> <div class="p-navEl is-selected" data-has-children="true"> <a href="/" class="p-navEl-link p-navEl-link--splitMenu " data-nav-id="forums">Forums</a> <a data-xf-key="1" data-xf-click="menu" data-menu-pos-ref="< .p-navEl" class="p-navEl-splitTrigger" role="button" tabindex="0" aria-label="Toggle expanded" aria-expanded="false" aria-haspopup="true"></a> <div class="menu menu--structural" data-menu="menu" aria-hidden="true"> <div class="menu-content"> <a href="/whats-new/posts/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " data-nav-id="newPosts">New posts</a> <a href="/search/?type=post" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " data-nav-id="searchForums">Search forums</a> </div> </div> </div> </li> <li class="navbestanswers"> <div class="p-navEl " > <a href="/topanswers" class="p-navEl-link " data-xf-key="2" data-nav-id="bestanswers">Best Answers</a> </div> </li> <li class="navwhatsNew"> <div class="p-navEl " data-has-children="true"> <a href="/whats-new/" class="p-navEl-link p-navEl-link--splitMenu " data-nav-id="whatsNew">What's new</a> <a data-xf-key="3" data-xf-click="menu" data-menu-pos-ref="< .p-navEl" class="p-navEl-splitTrigger" role="button" tabindex="0" aria-label="Toggle expanded" aria-expanded="false" aria-haspopup="true"></a> <div class="menu menu--structural" data-menu="menu" aria-hidden="true"> <div class="menu-content"> <a href="/whats-new/posts/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="whatsNewPosts">New posts</a> <a href="/whats-new/media/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="xfmgWhatsNewNewMedia">New media</a> <a href="/whats-new/media-comments/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="xfmgWhatsNewMediaComments">New media comments</a> <a href="/whats-new/ubs-blog-entries/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="xaUbsWhatsNewNewBlogEntries">New blog entries</a> <a href="/whats-new/resources/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="xfrmNewResources">New resources</a> <a href="/whats-new/profile-posts/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="whatsNewProfilePosts">New profile posts</a> <a href="/whats-new/ubs-comments/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="xaUbsWhatsNewBlogEntryComments">New blog entry comments</a> <a href="/whats-new/latest-activity" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="latestActivity">Latest activity</a> </div> </div> </div> </li> <li class="navxfmg"> <div class="p-navEl " data-has-children="true"> <a href="/media/" class="p-navEl-link p-navEl-link--splitMenu " data-nav-id="xfmg">Media</a> <a data-xf-key="4" data-xf-click="menu" data-menu-pos-ref="< .p-navEl" class="p-navEl-splitTrigger" role="button" tabindex="0" aria-label="Toggle expanded" aria-expanded="false" aria-haspopup="true"></a> <div class="menu menu--structural" data-menu="menu" aria-hidden="true"> <div class="menu-content"> <a href="/whats-new/media/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="xfmgNewMedia">New media</a> <a href="/whats-new/media-comments/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="xfmgNewComments">New comments</a> <a href="/search/?type=xfmg_media" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " data-nav-id="xfmgSearchMedia">Search media</a> </div> </div> </div> </li> <li class="navxa_ubs"> <div class="p-navEl " data-has-children="true"> <a href="/blog/" class="p-navEl-link p-navEl-link--splitMenu " data-nav-id="xa_ubs">Blogs</a> <a data-xf-key="5" data-xf-click="menu" data-menu-pos-ref="< .p-navEl" class="p-navEl-splitTrigger" role="button" tabindex="0" aria-label="Toggle expanded" aria-expanded="false" aria-haspopup="true"></a> <div class="menu menu--structural" data-menu="menu" aria-hidden="true"> <div class="menu-content"> <a href="/whats-new/ubs-blog-entries/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="xa_ubsNewBlogEntries">New entries</a> <a href="/whats-new/ubs-comments/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " rel="nofollow" data-nav-id="xa_ubsNewComments">New comments</a> <a href="/blog/latest-reviews" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " data-nav-id="xa_ubsLatestReviews">Latest reviews</a> <a href="/blog/blog/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " data-nav-id="xa_ubsBlogList">Blog list</a> <a href="/blog/authors/" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " data-nav-id="xa_ubsAuthorList">Author list</a> <a href="/search/?type=ubs_blog_entry" class="menu-linkRow u-indentDepth0 js-offCanvasCopy " data-nav-id="xa_ubsSearchBlogs">Search blogs</a> </div> </div> </div> </li> <li class="navhelp"> <div class="p-navEl " > <a href="/help" class="p-navEl-link " data-xf-key="6" data-nav-id="help">Help</a> </div> </li> <li class="navrules"> <div class="p-navEl " > <a href="/help/terms/" class="p-navEl-link " data-xf-key="7" data-nav-id="rules">Rules</a> </div> </li> <li class="navdbtechCredits"> </li> </ul> </div> </div> <div class="p-nav-opposite"> <div class="p-navgroup p-account p-navgroup--guest"> <a href="/login/" class="p-navgroup-link p-navgroup-link--textual p-navgroup-link--logIn" data-xf-click="overlay" data-follow-redirects="on"> <span class="p-navgroup-linkText">Log in</span> </a> <a href="/register/" class="p-navgroup-link p-navgroup-link--textual p-navgroup-link--register" data-xf-click="overlay" data-follow-redirects="on"> <span class="p-navgroup-linkText">Register</span> </a> </div> <div class="p-navgroup p-discovery"> <a href="/whats-new/" class="p-navgroup-link p-navgroup-link--iconic p-navgroup-link--whatsnew" aria-label="What's new" title="What's new"> <i aria-hidden="true"></i> <span class="p-navgroup-linkText">What's new</span> </a> <a href="/search/" class="p-navgroup-link p-navgroup-link--iconic p-navgroup-link--search" data-xf-click="menu" data-xf-key="/" aria-label="Search" aria-expanded="false" aria-haspopup="true" title="Search"> <i aria-hidden="true"></i> <span class="p-navgroup-linkText">Search</span> </a> <div class="menu menu--structural menu--wide" data-menu="menu" aria-hidden="true"> <form action="/search/search" method="post" class="menu-content" data-xf-init="quick-search" data-autocomplete-filter="["resource","post"]"> <h3 class="menu-header">Search</h3> <div class="menu-row"> <div class="inputGroup inputGroup--joined"> <input type="text" class="input" name="keywords" placeholder="Search…" aria-label="Search" data-menu-autofocus="true" /> <select name="constraints" class="js-quickSearch-constraint input" aria-label="Search within"> <option value="">Everywhere</option> <option value="{"search_type":"post"}">Threads</option> <option value="{"search_type":"post","c":{"nodes":[38],"child_nodes":1}}">This forum</option> <option value="{"search_type":"post","c":{"thread":413112}}" selected="selected" data-suggest-optout="1">This thread</option> </select> </div> </div> <div class="menu-row"> <label class="iconic"><input type="checkbox" name="c[container_only]" value="1" /><i aria-hidden="true"></i><span class="iconic-label">Search titles and first posts only</span></label> </div> <div class="menu-row"> <label class="iconic"><input type="checkbox" name="c[title_only]" value="1" /><i aria-hidden="true"></i><span class="iconic-label">Search titles only</span></label> </div> <div class="menu-row"> <div class="inputGroup"> <span class="inputGroup-text" id="ctrl_search_menu_by_member">By:</span> <input type="text" class="input" name="c[users]" data-xf-init="auto-complete" placeholder="Member" aria-labelledby="ctrl_search_menu_by_member" /> </div> </div> <div class="menu-footer"> <span class="menu-footer-controls"> <button type="submit" class="button--primary button button--icon button--icon--search"><span class="button-text">Search</span></button> <a href="/search/" class="button"><span class="button-text">Advanced search…</span></a> </span> </div> <input type="hidden" name="_xfToken" value="1732687310,0b67ad55346d2791e439d8324e42c3e4" /> </form> </div> </div> </div> </div> </nav> </div> </div> <div class="p-sectionLinks--wrapper"> <div class="p-sectionLinks"> <div class="p-sectionLinks-inner"> <div class="hScroller" data-xf-init="h-scroller"> <div class="hScroller-scroll"> <ul class="p-sectionLinks-list"> <li> <div class="p-navEl " > <a href="/whats-new/posts/" class="p-navEl-link " data-xf-key="alt+1" data-nav-id="newPosts">New posts</a> </div> </li> <li> <div class="p-navEl " > <a href="/search/?type=post" class="p-navEl-link " data-xf-key="alt+2" data-nav-id="searchForums">Search forums</a> </div> </li> </ul> </div> </div> <div class="p-sectionLinks-right"> </div> </div> </div> </div> <div class="offCanvasMenu offCanvasMenu--nav js-headerOffCanvasMenu" data-menu="menu" aria-hidden="true" data-ocm-builder="navigation"> <div class="offCanvasMenu-backdrop" data-menu-close="true"></div> <div class="offCanvasMenu-content"> <div class="offCanvasMenu-content--inner"> <div class="offCanvasMenu-header"> Menu <a class="offCanvasMenu-closer" data-menu-close="true" role="button" tabindex="0" aria-label="Close"></a> </div> <div class="p-offCanvasRegisterLink"> <div class="offCanvasMenu-linkHolder"> <a href="/login/" class="offCanvasMenu-link" data-xf-click="overlay" data-menu-close="true"> Log in </a> </div> <hr class="offCanvasMenu-separator" /> <div class="offCanvasMenu-linkHolder"> <a href="/register/" class="offCanvasMenu-link" data-xf-click="overlay" data-menu-close="true"> Register </a> </div> <hr class="offCanvasMenu-separator" /> </div> <div class="offCanvasMenu-subHeader">Navigation</div> <div class="js-offCanvasNavTarget"></div> <div class="offCanvasMenu-installBanner js-installPromptContainer" style="display: none;" data-xf-init="install-prompt"> <div class="offCanvasMenu-installBanner-header">Install the app</div> <button type="button" class="js-installPromptButton button"><span class="button-text">Install</span></button> <template class="js-installTemplateIOS"> <div class="overlay-title">How to install the app on iOS</div> <div class="block-body"> <div class="block-row"> <p> Follow along with the video below to see how to install our site as a web app on your home screen. </p> <p style="text-align: center"> <video src="/styles/default/xenforo/add_to_home.mp4" width="280" height="480" autoplay loop muted playsinline></video> </p> <p> <small><strong>Note:</strong> This feature may not be available in some browsers.</small> </p> </div> </div> </template> </div> <div class="offCanvasMenu-subHeader">More options</div> <div class="offCanvasMenu-linkHolder"> <a href="/misc/contact" class="offCanvasMenu-link" data-menu-close="true" data-nav-id="contactUs" data-xf-click="overlay">Contact us</a> </div> <div class="offCanvasMenu-linkHolder"> <a class="offCanvasMenu-link" data-menu-close="true" data-nav-id="closeMenu" role="button" tabindex="0" aria-label="Close">Close Menu</a> </div> </div> </div> </div> <div class="p-body"> <div class="p-body-inner"> <div class="xb-welcome-notice"> <div class="xb-welcome-notice--mask"> <div class="xb-welcome-notice--inner"> <div class="xb-welcome-notice--title"> <h3>Welcome to EDAboard.com</h3> <h4>Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.</h4> </div> <div class="xb-welcome-notice--buttons"> <a href="/register/" class="button" data-xf-click="overlay" data-follow-redirects="on"><span class="button-text">Register</span></a> <a href="/login/" class="button--cta button" rel="nofollow" data-xf-click="overlay" data-menu-close="true"> <span class="button-text">Log in</span> </a> </div> </div> </div> </div>  <div class="deskContent"><center><div id='div-gpt-eda-header'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eda-header'); }); </script> </div> </center></div> <div class="p-breadcrumbs--parent "> <ul class="p-breadcrumbs " itemscope itemtype="https://schema.org/BreadcrumbList"> <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem"> <a href="/#analog-design.10" itemprop="item"> <span itemprop="name">Analog Design</span> </a> <meta itemprop="position" content="1" /> </li> <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem"> <a href="/forums/analog-circuit-design.38/" itemprop="item"> <span itemprop="name">Analog Circuit Design</span> </a> <meta itemprop="position" content="2" /> </li> </ul> </div> <noscript class="js-jsWarning"><div class="blockMessage blockMessage--important blockMessage--iconic u-noJsOnly">JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.</div></noscript> <div class="blockMessage blockMessage--important blockMessage--iconic js-browserWarning" style="display: none">You are using an out of date browser. It may not display this or other websites correctly.<br />You should upgrade or use an <a href="https://www.google.com/chrome/" target="_blank" rel="noopener">alternative browser</a>.</div> <div class="p-body-header"> <div class="p-title "> <h1 class="p-title-value">Electronic load needed</h1> </div> <div class="p-description"> <ul class="listInline listInline--bullet"> <li> <i class="fa--xf fal fa-user" aria-hidden="true" title="Thread starter"></i> <span class="u-srOnly">Thread starter</span> <a href="/members/ahmedewest.691590/" class="username u-concealed" dir="auto" data-user-id="691590" data-xf-init="member-tooltip">AhmedEwest</a> </li> <li> <i class="fa--xf fal fa-clock" aria-hidden="true" title="Start date"></i> <span class="u-srOnly">Start date</span> <a href="/threads/electronic-load-needed.413112/" class="u-concealed"><time class="u-dt" dir="auto" datetime="2024-11-22T17:54:33+0000" data-time="1732298073" data-date-string="Nov 22, 2024" data-time-string="5:54 PM" title="Nov 22, 2024 at 5:54 PM">Friday at 5:54 PM</time></a> </li> </ul> </div> </div> <div class="p-body-main p-body-main--withSidebar "> <div class="p-body-contentCol"></div> <div class="p-body-sidebarCol"></div> <div class="p-body-content">  <div id='div-gpt-eda_wallpaper'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eda_wallpaper'); }); </script> </div> <div class="p-body-pageContent"> <div class="block block--messages " data-xf-init="lightbox select-to-quote" data-message-selector=".js-post" data-lb-id="thread-413112"> <div class="block-outer"></div> <div class="block-outer js-threadStatusField"></div> <div class="block-container"> <div class="block-body"> <article class="message message--post js-post js-inlineModContainer " data-author="AhmedEwest" data-content="post-1784395" id="js-post-1784395" > <span class="u-anchorTarget" id="post-1784395"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784395" rel="nofollow" > <time class="u-dt" dir="auto" datetime="2024-11-22T17:54:33+0000" data-time="1732298073" data-date-string="Nov 22, 2024" data-time-string="5:54 PM" title="Nov 22, 2024 at 5:54 PM">Friday at 5:54 PM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784395" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784395/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784395" rel="nofollow"> #1 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" > <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/ahmedewest.691590/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="691590" data-xf-init="member-tooltip" style="background-color: #b8d65c; color: #53661a"> <span class="avatar-u691590-m" role="img" aria-label="AhmedEwest">A</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/ahmedewest.691590/" class="username " dir="auto" data-user-id="691590" data-xf-init="member-tooltip">AhmedEwest</a></h4> <h5 class="userTitle message-userTitle" dir="auto">Newbie</h5> </div> <img src="/styles/images/ranks/blevel1.gif" alt="Newbie level 4"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Nov 22, 2024</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>7</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/ahmedewest.691590" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 41 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784395" data-lb-caption-desc="AhmedEwest · Nov 22, 2024 at 5:54 PM"> <article class="message-body js-selectToQuote"> <div > <div class="bbWrapper">Hi there<br /> <br /> <br /> We are looking for best design an electronic load with power of 6000 watt<br /> Max volt is 0-400 volt resolution 0.1 volt<br /> Max current 0-100 amps resolution 0.1 amps<br /> The mode is CC</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784395" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784395/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> </div> </article> </div> </div> </div> <div class="block block--messages" data-xf-init="" data-type="post" data-href="/inline-mod/" data-search-target="*"> <span class="u-anchorTarget" id="posts"></span> <div class="block-outer"><div class="block-outer-opposite"> <div class="tabs tabs--standalone tabs--standalone--small tabs--standalone--inline"> <a href="/threads/electronic-load-needed.413112/" class="tabs-tab is-active" rel="nofollow"> Sort by date </a> <a href="/threads/electronic-load-needed.413112/?order=vote_score" class="tabs-tab " rel="nofollow"> Sort by votes </a> </div> </div></div> <div class="block-container lbContainer" data-xf-init="lightbox select-to-quote" data-message-selector=".js-post" data-lb-id="thread-413112" data-lb-universal="0"> <div class="block-body js-replyNewMessageContainer"> <article class="message message--post js-post js-inlineModContainer " data-author="D.A.(Tony)Stewart" data-content="post-1784421" id="js-post-1784421" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784421/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784421"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784421" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T00:47:20+0000" data-time="1732322840" data-date-string="Nov 23, 2024" data-time-string="12:47 AM" title="Nov 23, 2024 at 12:47 AM" itemprop="datePublished">Saturday at 12:47 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784421" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784421/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784421" rel="nofollow"> #2 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/d-a-tony-stewart.134022/"> <meta itemprop="url" content="https://www.edaboard.com/members/d-a-tony-stewart.134022/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/d-a-tony-stewart.134022/" class="avatar avatar--m" data-user-id="134022" data-xf-init="member-tooltip"> <img src="/data/avatars/m/134/134022.jpg?1703022794" alt="D.A.(Tony)Stewart" class="avatar-u134022-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/d-a-tony-stewart.134022/" class="username " dir="auto" data-user-id="134022" data-xf-init="member-tooltip"><span itemprop="name">D.A.(Tony)Stewart</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Advanced Member level 7</h5> </div> <img src="/styles/images/ranks/hlevel4.gif" alt="Advanced Member level 7"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Sep 26, 2007</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>9,872</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>1,855</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/d-a-tony-stewart.134022" class="fauxBlockLink-linkRow u-concealed">3,711</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>2,409</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,413</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Richmond+Hill%2C+ON%2C+Canada" rel="nofollow noreferrer" target="_blank" class="u-concealed">Richmond Hill, ON, Canada</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 63,148 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784421" data-lb-caption-desc="D.A.(Tony)Stewart · Nov 23, 2024 at 12:47 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">What is your realistic budget? $6k $600 $60<br /> What is your design experience level? and time worth?<br /> <br /> What efficiency do you expect?<br /> What dynamic load impedance is it?</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784421" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784421/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784421"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="BradtheRad" data-content="post-1784429" id="js-post-1784429" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784429/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784429"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784429" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T05:07:53+0000" data-time="1732338473" data-date-string="Nov 23, 2024" data-time-string="5:07 AM" title="Nov 23, 2024 at 5:07 AM" itemprop="datePublished">Saturday at 5:07 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784429" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784429/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784429" rel="nofollow"> #3 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/bradtherad.423852/"> <meta itemprop="url" content="https://www.edaboard.com/members/bradtherad.423852/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/bradtherad.423852/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="423852" data-xf-init="member-tooltip" style="background-color: #a32929; color: #e69999"> <span class="avatar-u423852-m" role="img" aria-label="BradtheRad">B</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/bradtherad.423852/" class="username " dir="auto" data-user-id="423852" data-xf-init="member-tooltip"><span class="username--staff username--moderator" itemprop="name">BradtheRad</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Super Moderator</h5> <div class="userBanner userBanner--staff message-userBanner" dir="auto" itemprop="jobTitle"><span class="userBanner-before"></span><strong>Staff member</strong><span class="userBanner-after"></span></div> </div> <img src="/styles/images/ranks/hlevel4.gif" alt="Advanced Member level 7"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Apr 1, 2011</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>15,601</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>2,912</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/bradtherad.423852" class="fauxBlockLink-linkRow u-concealed">5,836</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>3,050</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,393</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Minneapolis%2C+Minnesota%2C+USA" rel="nofollow noreferrer" target="_blank" class="u-concealed">Minneapolis, Minnesota, USA</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 116,838 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784429" data-lb-caption-desc="BradtheRad · Nov 23, 2024 at 5:07 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">I read that theater lights were controlled by raising and lowering conductors into salt solution. The water cooling should be a bonus considering your Wattage draw is enough to power a house.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784429" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784429/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784429"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="AhmedEwest" data-content="post-1784434" id="js-post-1784434" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784434/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784434"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784434" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T08:08:29+0000" data-time="1732349309" data-date-string="Nov 23, 2024" data-time-string="8:08 AM" title="Nov 23, 2024 at 8:08 AM" itemprop="datePublished">Saturday at 8:08 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784434" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784434/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784434" rel="nofollow"> #4 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/ahmedewest.691590/"> <meta itemprop="url" content="https://www.edaboard.com/members/ahmedewest.691590/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/ahmedewest.691590/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="691590" data-xf-init="member-tooltip" style="background-color: #b8d65c; color: #53661a"> <span class="avatar-u691590-m" role="img" aria-label="AhmedEwest">A</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/ahmedewest.691590/" class="username " dir="auto" data-user-id="691590" data-xf-init="member-tooltip"><span itemprop="name">AhmedEwest</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Newbie</h5> </div> <img src="/styles/images/ranks/blevel1.gif" alt="Newbie level 4"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Nov 22, 2024</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>7</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/ahmedewest.691590" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 41 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784434" data-lb-caption-desc="AhmedEwest · Nov 23, 2024 at 8:08 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 134022" data-quote="D.A.(Tony)Stewart" data-source="post: 1784421" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1784421" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1784421">D.A.(Tony)Stewart said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> What is your realistic budget? $6k $600 $60<br /> What is your design experience level? and time worth?<br /> <br /> What efficiency do you expect?<br /> What dynamic load impedance is it? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Hello Tony appreciate a lot your reply <br /> Tye load will be SMPS and some kind of normal regulated power supply <br /> The target quantity is two and the budget within $1000 -$1500</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784434" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784434/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784434"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="FvM" data-content="post-1784435" id="js-post-1784435" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784435/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784435"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784435" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T08:08:59+0000" data-time="1732349339" data-date-string="Nov 23, 2024" data-time-string="8:08 AM" title="Nov 23, 2024 at 8:08 AM" itemprop="datePublished">Saturday at 8:08 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784435" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784435/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784435" rel="nofollow"> #5 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/fvm.152255/"> <meta itemprop="url" content="https://www.edaboard.com/members/fvm.152255/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/fvm.152255/" class="avatar avatar--m" data-user-id="152255" data-xf-init="member-tooltip"> <img src="/data/avatars/m/152/152255.jpg?1591449713" srcset="/data/avatars/l/152/152255.jpg?1591449713 2x" alt="FvM" class="avatar-u152255-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/fvm.152255/" class="username " dir="auto" data-user-id="152255" data-xf-init="member-tooltip"><span class="username--staff username--moderator" itemprop="name">FvM</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Super Moderator</h5> <div class="userBanner userBanner--staff message-userBanner" dir="auto" itemprop="jobTitle"><span class="userBanner-before"></span><strong>Staff member</strong><span class="userBanner-after"></span></div> </div> <img src="/styles/images/ranks/hlevel4.gif" alt="Advanced Member level 7"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Jan 22, 2008</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>53,133</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>14,792</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/fvm.152255" class="fauxBlockLink-linkRow u-concealed">29,871</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>14,293</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,393</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Bochum%2C+Germany" rel="nofollow noreferrer" target="_blank" class="u-concealed">Bochum, Germany</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 301,168 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784435" data-lb-caption-desc="FvM · Nov 23, 2024 at 8:08 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">These days, electronic loads with kW rating are mostly designed with energy recovery, see a typical product <a href="https://elektroautomatik.com/shop/media/pdf/f0/ab/23/datasheet_elr_10000_3u_15kw_en.pdf" target="_blank" class="link link--external" rel="noopener">https://elektroautomatik.com/shop/media/pdf/f0/ab/23/datasheet_elr_10000_3u_15kw_en.pdf</a><br /> The circuit effort is however large if you want to design the instrument yourself.<br /> Thus I guess you are asking about a dissipative active load, burning the power in big heatsinks with fan or partly in power resistors.<br /> Your specification is missing some details, 0 V isn't feasible, there will be a minimal load resistance causing a current dependant voltage minimum. Also, do you have any dynamic specifications?<br /> <div class="kl_amdp_merge_message"> --- Updated <time class="u-dt" dir="auto" datetime="2024-11-23T08:18:18+0000" data-time="1732349898" data-date-string="Nov 23, 2024" data-time-string="8:18 AM" title="Nov 23, 2024 at 8:18 AM">Saturday at 8:18 AM</time> --- </div><br /> What's the application? If it's production test, energy recovery will be more or less mandatory due to expectable operation time.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <div class="message-lastEdit"> Last edited: <time class="u-dt" dir="auto" datetime="2024-11-23T08:24:21+0000" data-time="1732350261" data-date-string="Nov 23, 2024" data-time-string="8:24 AM" title="Nov 23, 2024 at 8:24 AM" itemprop="dateModified">Saturday at 8:24 AM</time> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784435" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784435/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784435"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="AhmedEwest" data-content="post-1784436" id="js-post-1784436" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784436/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784436"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784436" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T08:10:04+0000" data-time="1732349404" data-date-string="Nov 23, 2024" data-time-string="8:10 AM" title="Nov 23, 2024 at 8:10 AM" itemprop="datePublished">Saturday at 8:10 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784436" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784436/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784436" rel="nofollow"> #6 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/ahmedewest.691590/"> <meta itemprop="url" content="https://www.edaboard.com/members/ahmedewest.691590/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/ahmedewest.691590/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="691590" data-xf-init="member-tooltip" style="background-color: #b8d65c; color: #53661a"> <span class="avatar-u691590-m" role="img" aria-label="AhmedEwest">A</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/ahmedewest.691590/" class="username " dir="auto" data-user-id="691590" data-xf-init="member-tooltip"><span itemprop="name">AhmedEwest</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Newbie</h5> </div> <img src="/styles/images/ranks/blevel1.gif" alt="Newbie level 4"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Nov 22, 2024</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>7</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/ahmedewest.691590" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 41 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784436" data-lb-caption-desc="AhmedEwest · Nov 23, 2024 at 8:10 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 423852" data-quote="BradtheRad" data-source="post: 1784429" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1784429" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1784429">BradtheRad said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I read that theater lights were controlled by raising and lowering conductors into salt solution. The water cooling should be a bonus considering your Wattage draw is enough to power a house. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Hello there<br /> <br /> We will use this circuit as electronic load for some product of SMPS</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784436" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784436/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784436"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="AhmedEwest" data-content="post-1784438" id="js-post-1784438" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784438/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784438"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784438" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T08:17:26+0000" data-time="1732349846" data-date-string="Nov 23, 2024" data-time-string="8:17 AM" title="Nov 23, 2024 at 8:17 AM" itemprop="datePublished">Saturday at 8:17 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784438" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784438/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784438" rel="nofollow"> #7 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/ahmedewest.691590/"> <meta itemprop="url" content="https://www.edaboard.com/members/ahmedewest.691590/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/ahmedewest.691590/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="691590" data-xf-init="member-tooltip" style="background-color: #b8d65c; color: #53661a"> <span class="avatar-u691590-m" role="img" aria-label="AhmedEwest">A</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/ahmedewest.691590/" class="username " dir="auto" data-user-id="691590" data-xf-init="member-tooltip"><span itemprop="name">AhmedEwest</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Newbie</h5> </div> <img src="/styles/images/ranks/blevel1.gif" alt="Newbie level 4"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Nov 22, 2024</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>7</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/ahmedewest.691590" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 41 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784438" data-lb-caption-desc="AhmedEwest · Nov 23, 2024 at 8:17 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 152255" data-quote="FvM" data-source="post: 1784435" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1784435" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1784435">FvM said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> These days, electronic loads with kW rating are mostly designed with energy recovery, see a typical product <a href="https://elektroautomatik.com/shop/media/pdf/f0/ab/23/datasheet_elr_10000_3u_15kw_en.pdf" target="_blank" class="link link--external" rel="nofollow ugc noopener">https://elektroautomatik.com/shop/media/pdf/f0/ab/23/datasheet_elr_10000_3u_15kw_en.pdf</a><br /> The circuit effort is however large if you want to design the instrument yourself.<br /> Thus I guess you are asking about a dissipative active load, burning the power in big heatsinks with fan or partly in power resistors.<br /> Your specification is missing some details, 0 V isn't feasible, there will be a minimal load resistance causing a current dependant voltage minimum by. Also, do you have any dynamic specifications? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Hello there<br /> <br /> My target design is building A constant current Electronic load using high power mosfet in liner region controlling Vgs to result control the drain current through my load<br /> <h3></h3></div> </div> <div class="js-selectToQuoteEnd"> </div> </article> <section class="message-attachments"> <h4 class="block-textHeader">Attachments</h4> <ul class="attachmentList"> <li class="file file--linked"> <a class="u-anchorTarget" id="attachment-195507"></a> <script class="js-extraPhrases" type="application/json"> { "lightbox_close": "Close", "lightbox_next": "Next", "lightbox_previous": "Previous", "lightbox_error": "The requested content cannot be loaded. Please try again later.", "lightbox_start_slideshow": "Start slideshow", "lightbox_stop_slideshow": "Stop slideshow", "lightbox_full_screen": "Full screen", "lightbox_thumbnails": "Thumbnails", "lightbox_download": "Download", "lightbox_share": "Share", "lightbox_zoom": "Zoom", "lightbox_new_window": "New window", "lightbox_toggle_sidebar": "Toggle sidebar" } </script> <a class="file-preview js-lbImage" data-lb-sidebar-href="" data-lb-caption-extra-html="" href="/attachments/img_3555-png.195507/" target="_blank"> <img src="/data/attachments/125/125607-342764e2d74362efc23fc930b6626e61.jpg" alt="IMG_3555.png" width="292" height="150" loading="lazy" /> </a> <div class="file-content"> <div class="file-info"> <span class="file-name" title="IMG_3555.png">IMG_3555.png</span> <div class="file-meta"> 46.4 KB · Views: 12 </div> </div> </div> </li> </ul> </section> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784438" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784438/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784438"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="AhmedEwest" data-content="post-1784440" id="js-post-1784440" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784440/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784440"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784440" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T08:24:07+0000" data-time="1732350247" data-date-string="Nov 23, 2024" data-time-string="8:24 AM" title="Nov 23, 2024 at 8:24 AM" itemprop="datePublished">Saturday at 8:24 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784440" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784440/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784440" rel="nofollow"> #8 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/ahmedewest.691590/"> <meta itemprop="url" content="https://www.edaboard.com/members/ahmedewest.691590/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/ahmedewest.691590/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="691590" data-xf-init="member-tooltip" style="background-color: #b8d65c; color: #53661a"> <span class="avatar-u691590-m" role="img" aria-label="AhmedEwest">A</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/ahmedewest.691590/" class="username " dir="auto" data-user-id="691590" data-xf-init="member-tooltip"><span itemprop="name">AhmedEwest</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Newbie</h5> </div> <img src="/styles/images/ranks/blevel1.gif" alt="Newbie level 4"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Nov 22, 2024</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>7</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/ahmedewest.691590" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 41 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784440" data-lb-caption-desc="AhmedEwest · Nov 23, 2024 at 8:24 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 152255" data-quote="FvM" data-source="post: 1784435" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1784435" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1784435">FvM said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> These days, electronic loads with kW rating are mostly designed with energy recovery, see a typical product <a href="https://elektroautomatik.com/shop/media/pdf/f0/ab/23/datasheet_elr_10000_3u_15kw_en.pdf" target="_blank" class="link link--external" rel="nofollow ugc noopener">https://elektroautomatik.com/shop/media/pdf/f0/ab/23/datasheet_elr_10000_3u_15kw_en.pdf</a><br /> The circuit effort is however large if you want to design the instrument yourself.<br /> Thus I guess you are asking about a dissipative active load, burning the power in big heatsinks with fan or partly in power resistors.<br /> Your specification is missing some details, 0 V isn't feasible, there will be a minimal load resistance causing a current dependant voltage minimum. Also, do you have any dynamic specifications?<br /> <div class="kl_amdp_merge_message"> --- Updated <time class="u-dt" dir="auto" datetime="2024-11-23T08:18:18+0000" data-time="1732349898" data-date-string="Nov 23, 2024" data-time-string="8:18 AM" title="Nov 23, 2024 at 8:18 AM">Saturday at 8:18 AM</time> --- </div><br /> What's the application? If it's production test, energy recovery will be more or less mandatory due to expectable operation time. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Just and update regarding load the load is smps and normal regulated P.S the rated volt is 3.3- 400 volt and the current is 0.1 amps minimum to 100 amps</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784440" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784440/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784440"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="FvM" data-content="post-1784441" id="js-post-1784441" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784441/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784441"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784441" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T08:27:39+0000" data-time="1732350459" data-date-string="Nov 23, 2024" data-time-string="8:27 AM" title="Nov 23, 2024 at 8:27 AM" itemprop="datePublished">Saturday at 8:27 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784441" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784441/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784441" rel="nofollow"> #9 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/fvm.152255/"> <meta itemprop="url" content="https://www.edaboard.com/members/fvm.152255/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/fvm.152255/" class="avatar avatar--m" data-user-id="152255" data-xf-init="member-tooltip"> <img src="/data/avatars/m/152/152255.jpg?1591449713" srcset="/data/avatars/l/152/152255.jpg?1591449713 2x" alt="FvM" class="avatar-u152255-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/fvm.152255/" class="username " dir="auto" data-user-id="152255" data-xf-init="member-tooltip"><span class="username--staff username--moderator" itemprop="name">FvM</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Super Moderator</h5> <div class="userBanner userBanner--staff message-userBanner" dir="auto" itemprop="jobTitle"><span class="userBanner-before"></span><strong>Staff member</strong><span class="userBanner-after"></span></div> </div> <img src="/styles/images/ranks/hlevel4.gif" alt="Advanced Member level 7"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Jan 22, 2008</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>53,133</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>14,792</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/fvm.152255" class="fauxBlockLink-linkRow u-concealed">29,871</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>14,293</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,393</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Bochum%2C+Germany" rel="nofollow noreferrer" target="_blank" class="u-concealed">Bochum, Germany</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 301,168 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784441" data-lb-caption-desc="FvM · Nov 23, 2024 at 8:27 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 691590" data-quote="AhmedEwest" data-source="post: 1784438" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1784438" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1784438">AhmedEwest said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Hello there<br /> <br /> My target design is building A constant current Electronic load using high power mosfet in liner region controlling Vgs to result control the drain current through my load </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>That's well possible. Multiple parallel MOSFETs are necessary to handle the power, requiring either individual control amplifiers or large source resistors for current balancing compensating Vgs,thr variation. You should also consider that many MOSFETs have SOA restrictions in linear operation.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784441" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784441/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784441"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="Easy peasy" data-content="post-1784446" id="js-post-1784446" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784446/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784446"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784446" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T08:56:36+0000" data-time="1732352196" data-date-string="Nov 23, 2024" data-time-string="8:56 AM" title="Nov 23, 2024 at 8:56 AM" itemprop="datePublished">Saturday at 8:56 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784446" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784446/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784446" rel="nofollow"> #10 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/easy-peasy.573147/"> <meta itemprop="url" content="https://www.edaboard.com/members/easy-peasy.573147/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/easy-peasy.573147/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="573147" data-xf-init="member-tooltip" style="background-color: #336699; color: #9fbfdf"> <span class="avatar-u573147-m" role="img" aria-label="Easy peasy">E</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/easy-peasy.573147/" class="username " dir="auto" data-user-id="573147" data-xf-init="member-tooltip"><span itemprop="name">Easy peasy</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Advanced Member level 6</h5> </div> <img src="/styles/images/ranks/hlevel3.gif" alt="Advanced Member level 6"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Aug 15, 2015</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>5,052</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>1,415</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/easy-peasy.573147" class="fauxBlockLink-linkRow u-concealed">2,830</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>2,079</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,393</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Melbourne" rel="nofollow noreferrer" target="_blank" class="u-concealed">Melbourne</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 27,697 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784446" data-lb-caption-desc="Easy peasy · Nov 23, 2024 at 8:56 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">Hello there, we make a battery load, 0 - 50A, 0-60V CC but the price is USD $1550.00 + freight ( we do a multi mode one too, 32V, 100A & 60V, 50A & 135Vmax, 25A ) - and a special 400VDC, 8A max<br /> <br /> To do 400V max that can also draw 100A continuously ( 40kW ) is a bit of an ask, 100mV resolution is 0.025%, or 250ppm<br /> <br /> also the leads will drop all sorts of voltages as you go from 0 - 100A - so such resolution at the battery load terminals is really a waste of time.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784446" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784446/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784446"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="AhmedEwest" data-content="post-1784448" id="js-post-1784448" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784448/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784448"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784448" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T09:02:53+0000" data-time="1732352573" data-date-string="Nov 23, 2024" data-time-string="9:02 AM" title="Nov 23, 2024 at 9:02 AM" itemprop="datePublished">Saturday at 9:02 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784448" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784448/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784448" rel="nofollow"> #11 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/ahmedewest.691590/"> <meta itemprop="url" content="https://www.edaboard.com/members/ahmedewest.691590/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/ahmedewest.691590/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="691590" data-xf-init="member-tooltip" style="background-color: #b8d65c; color: #53661a"> <span class="avatar-u691590-m" role="img" aria-label="AhmedEwest">A</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/ahmedewest.691590/" class="username " dir="auto" data-user-id="691590" data-xf-init="member-tooltip"><span itemprop="name">AhmedEwest</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Newbie</h5> </div> <img src="/styles/images/ranks/blevel1.gif" alt="Newbie level 4"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Nov 22, 2024</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>7</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/ahmedewest.691590" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 41 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784448" data-lb-caption-desc="AhmedEwest · Nov 23, 2024 at 9:02 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 573147" data-quote="Easy peasy" data-source="post: 1784446" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1784446" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1784446">Easy peasy said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Hello there, we make a battery load, 0 - 50A, 0-60V CC but the price is USD $1550.00 + freight ( we do a multi mode one too, 32V, 100A & 60V, 50A & 135Vmax, 25A ) - and a special 400VDC, 8A max<br /> <br /> To do 400V max that can also draw 100A continuously ( 40kW ) is a bit of an ask, 100mV resolution is 0.025%, or 250ppm<br /> <br /> also the leads will drop all sorts of voltages as you go from 0 - 100A - so such resolution at the battery load terminals is really a waste of time. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Tye max power restrictions is 6kw not 40 kw</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784448" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784448/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784448"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="KlausST" data-content="post-1784449" id="js-post-1784449" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784449/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784449"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784449" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T09:03:16+0000" data-time="1732352596" data-date-string="Nov 23, 2024" data-time-string="9:03 AM" title="Nov 23, 2024 at 9:03 AM" itemprop="datePublished">Saturday at 9:03 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784449" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784449/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784449" rel="nofollow"> #12 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/klausst.544298/"> <meta itemprop="url" content="https://www.edaboard.com/members/klausst.544298/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/klausst.544298/" class="avatar avatar--m" data-user-id="544298" data-xf-init="member-tooltip"> <img src="/data/avatars/m/544/544298.jpg?1591959018" srcset="/data/avatars/l/544/544298.jpg?1591959018 2x" alt="KlausST" class="avatar-u544298-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/klausst.544298/" class="username " dir="auto" data-user-id="544298" data-xf-init="member-tooltip"><span itemprop="name">KlausST</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Advanced Member level 7</h5> </div> <img src="/styles/images/ranks/hlevel4.gif" alt="Advanced Member level 7"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Apr 17, 2014</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>26,161</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>4,922</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/klausst.544298" class="fauxBlockLink-linkRow u-concealed">9,869</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>5,771</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,393</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 175,867 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784449" data-lb-caption-desc="KlausST · Nov 23, 2024 at 9:03 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">Hi,<br /> <br /> expectable difficulties:<br /> * to spread 6000W if dissipated power<br /> * to get equal current distribution / power distribution on all used MOSFETs / IGBTs.<br /> <br /> ***<br /> <br /> What are the timing requirements, regarding<br /> * input voltage change<br /> * current setup change?<br /> <br /> Please consider situations where the load is set to let´s say 50A while unconnected ... then you hard connect the load with the supply.<br /> --> a high rise dV/dt.<br /> <br /> Klaus</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784449" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784449/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784449"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="AhmedEwest" data-content="post-1784451" id="js-post-1784451" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784451/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784451"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784451" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T09:10:32+0000" data-time="1732353032" data-date-string="Nov 23, 2024" data-time-string="9:10 AM" title="Nov 23, 2024 at 9:10 AM" itemprop="datePublished">Saturday at 9:10 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784451" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784451/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784451" rel="nofollow"> #13 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/ahmedewest.691590/"> <meta itemprop="url" content="https://www.edaboard.com/members/ahmedewest.691590/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/ahmedewest.691590/" class="avatar avatar--m avatar--default avatar--default--dynamic" data-user-id="691590" data-xf-init="member-tooltip" style="background-color: #b8d65c; color: #53661a"> <span class="avatar-u691590-m" role="img" aria-label="AhmedEwest">A</span> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/ahmedewest.691590/" class="username " dir="auto" data-user-id="691590" data-xf-init="member-tooltip"><span itemprop="name">AhmedEwest</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Newbie</h5> </div> <img src="/styles/images/ranks/blevel1.gif" alt="Newbie level 4"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Nov 22, 2024</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>7</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/ahmedewest.691590" class="fauxBlockLink-linkRow u-concealed">0</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>0</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1</dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 41 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784451" data-lb-caption-desc="AhmedEwest · Nov 23, 2024 at 9:10 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 544298" data-quote="KlausST" data-source="post: 1784449" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1784449" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1784449">KlausST said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Hi,<br /> <br /> expectable difficulties:<br /> * to spread 6000W if dissipated power<br /> * to get equal current distribution / power distribution on all used MOSFETs / IGBTs.<br /> <br /> ***<br /> <br /> What are the timing requirements, regarding<br /> * input voltage change<br /> * current setup change?<br /> <br /> Please consider situations where the load is set to let´s say 50A while unconnected ... then you hard connect the load with the supply.<br /> --> a high rise dV/dt.<br /> <br /> Klaus </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Hello klaus<br /> <br /> Our target is soft start load the input voltage should be fixed <br /> <br /> An example to test SMPS 3.3 volt with max current 100 amps<br /> We should connect our load and apply gradually current from 0.1 amps until achieve desired max load with no timing requirements its not pulses test and ramp test</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784451" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784451/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784451"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="D.A.(Tony)Stewart" data-content="post-1784452" id="js-post-1784452" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784452/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784452"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784452" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T09:40:46+0000" data-time="1732354846" data-date-string="Nov 23, 2024" data-time-string="9:40 AM" title="Nov 23, 2024 at 9:40 AM" itemprop="datePublished">Saturday at 9:40 AM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784452" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784452/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784452" rel="nofollow"> #14 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/d-a-tony-stewart.134022/"> <meta itemprop="url" content="https://www.edaboard.com/members/d-a-tony-stewart.134022/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/d-a-tony-stewart.134022/" class="avatar avatar--m" data-user-id="134022" data-xf-init="member-tooltip"> <img src="/data/avatars/m/134/134022.jpg?1703022794" alt="D.A.(Tony)Stewart" class="avatar-u134022-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/d-a-tony-stewart.134022/" class="username " dir="auto" data-user-id="134022" data-xf-init="member-tooltip"><span itemprop="name">D.A.(Tony)Stewart</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Advanced Member level 7</h5> </div> <img src="/styles/images/ranks/hlevel4.gif" alt="Advanced Member level 7"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Sep 26, 2007</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>9,872</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>1,855</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/d-a-tony-stewart.134022" class="fauxBlockLink-linkRow u-concealed">3,711</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>2,409</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,413</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Richmond+Hill%2C+ON%2C+Canada" rel="nofollow noreferrer" target="_blank" class="u-concealed">Richmond Hill, ON, Canada</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 63,148 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784452" data-lb-caption-desc="D.A.(Tony)Stewart · Nov 23, 2024 at 9:40 AM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">I wonder if a negative adjustable DCDC current limiter can be made as a load for a positive supply if floating.<br /> Then it's one regulator sinking the device that is sourcing.<br /> <br /> Remote sensing is challenging, but it was a common practice on high-power analog supplies with SCR bridge ACDC pre-regulators made by HP to reduce losses.<br /> <br /> We used to have an ATE for PS testing and it had a wide variety of tests.<br /> Stability, noise and tolerance must be tested.<br /> <br /> This looks more like a Buy than a Make work project.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784452" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784452/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784452"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="FvM" data-content="post-1784464" id="js-post-1784464" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784464/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784464"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784464" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T14:40:22+0000" data-time="1732372822" data-date-string="Nov 23, 2024" data-time-string="2:40 PM" title="Nov 23, 2024 at 2:40 PM" itemprop="datePublished">Saturday at 2:40 PM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784464" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784464/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784464" rel="nofollow"> #15 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/fvm.152255/"> <meta itemprop="url" content="https://www.edaboard.com/members/fvm.152255/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/fvm.152255/" class="avatar avatar--m" data-user-id="152255" data-xf-init="member-tooltip"> <img src="/data/avatars/m/152/152255.jpg?1591449713" srcset="/data/avatars/l/152/152255.jpg?1591449713 2x" alt="FvM" class="avatar-u152255-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/fvm.152255/" class="username " dir="auto" data-user-id="152255" data-xf-init="member-tooltip"><span class="username--staff username--moderator" itemprop="name">FvM</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Super Moderator</h5> <div class="userBanner userBanner--staff message-userBanner" dir="auto" itemprop="jobTitle"><span class="userBanner-before"></span><strong>Staff member</strong><span class="userBanner-after"></span></div> </div> <img src="/styles/images/ranks/hlevel4.gif" alt="Advanced Member level 7"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Jan 22, 2008</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>53,133</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>14,792</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/fvm.152255" class="fauxBlockLink-linkRow u-concealed">29,871</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>14,293</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,393</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Bochum%2C+Germany" rel="nofollow noreferrer" target="_blank" class="u-concealed">Bochum, Germany</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 301,168 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784464" data-lb-caption-desc="FvM · Nov 23, 2024 at 2:40 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper"><blockquote data-attributes="member: 573147" data-quote="Easy peasy" data-source="post: 1784446" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1784446" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1784446">Easy peasy said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> also the leads will drop all sorts of voltages as you go from 0 - 100A - so such resolution at the battery load terminals is really a waste of time. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Presume you have sense wires at the DUT, cable voltage drop isn't an issue as long as the load gets sufficient voltage.<br /> <br /> <blockquote data-attributes="member: 691590" data-quote="AhmedEwest" data-source="post: 1784451" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=1784451" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1784451">AhmedEwest said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> An example to test SMPS 3.3 volt with max current 100 amps<br /> We should connect our load and apply gradually current from 0.1 amps until achieve desired max load with no timing requirements its not pulses test and ramp test </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>So effectively no dynamic requirements, quasi-static load. Is 100 A @ 3.3V minimal voltage for rated current or do you want to go even lower (reserving sufficient margin for cable voltage drop)?<br /> <div class="kl_amdp_merge_message"> --- Updated <time class="u-dt" dir="auto" datetime="2024-11-23T14:43:27+0000" data-time="1732373007" data-date-string="Nov 23, 2024" data-time-string="2:43 PM" title="Nov 23, 2024 at 2:43 PM">Saturday at 2:43 PM</time> --- </div><br /> 2 x 2 m cable 35 mm² gives about 2 mOhm, 0.2 V drop at 100 A.<br /> Minimal cross section for 100 A is about 16 mm², gives already 0.44 V drop.</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <div class="message-lastEdit"> Last edited: <time class="u-dt" dir="auto" datetime="2024-11-23T14:46:58+0000" data-time="1732373218" data-date-string="Nov 23, 2024" data-time-string="2:46 PM" title="Nov 23, 2024 at 2:46 PM" itemprop="dateModified">Saturday at 2:46 PM</time> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784464" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784464/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784464"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> <article class="message message--post js-post js-inlineModContainer " data-author="D.A.(Tony)Stewart" data-content="post-1784468" id="js-post-1784468" itemscope itemtype="https://schema.org/Answer" itemid="https://www.edaboard.com/posts/1784468/"> <meta itemprop="parentItem" itemscope itemid="https://www.edaboard.com/threads/electronic-load-needed.413112/" /> <span class="u-anchorTarget" id="post-1784468"></span> <div class="message-header"> <header class="message-attribution message-attribution--split"> <ul class="message-attribution-main listInline "> <li class="u-concealed"> <a href="/threads/electronic-load-needed.413112/post-1784468" rel="nofollow" itemprop="url"> <time class="u-dt" dir="auto" datetime="2024-11-23T15:24:18+0000" data-time="1732375458" data-date-string="Nov 23, 2024" data-time-string="3:24 PM" title="Nov 23, 2024 at 3:24 PM" itemprop="datePublished">Saturday at 3:24 PM</time> </a> </li> </ul> <ul class="message-attribution-opposite message-attribution-opposite--list "> <li> <a href="/threads/electronic-load-needed.413112/post-1784468" class="message-attribution-gadget" data-xf-init="share-tooltip" data-href="/posts/1784468/share" aria-label="Share" rel="nofollow"> <i class="fa--xf fal fa-share-alt" aria-hidden="true"></i> </a> </li> <li> <a href="/threads/electronic-load-needed.413112/post-1784468" rel="nofollow"> #16 </a> </li> </ul> </header> </div> <div class="message-inner"> <div class="message-cell message-cell--user"> <section class="message-user" itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://www.edaboard.com/members/d-a-tony-stewart.134022/"> <meta itemprop="url" content="https://www.edaboard.com/members/d-a-tony-stewart.134022/" /> <div class="message-avatar "> <div class="message-avatar-wrapper"> <a href="/members/d-a-tony-stewart.134022/" class="avatar avatar--m" data-user-id="134022" data-xf-init="member-tooltip"> <img src="/data/avatars/m/134/134022.jpg?1703022794" alt="D.A.(Tony)Stewart" class="avatar-u134022-m" width="96" height="96" loading="lazy" itemprop="image" /> </a> </div> </div> <div class="message-userDetails"> <h4 class="message-name"><a href="/members/d-a-tony-stewart.134022/" class="username " dir="auto" data-user-id="134022" data-xf-init="member-tooltip"><span itemprop="name">D.A.(Tony)Stewart</span></a></h4> <h5 class="userTitle message-userTitle" dir="auto" itemprop="jobTitle">Advanced Member level 7</h5> </div> <img src="/styles/images/ranks/hlevel4.gif" alt="Advanced Member level 7"> <div class="message-userExtras"> <dl class="pairs pairs--justified joinedBlock"> <dt>Joined</dt> <dd>Sep 26, 2007</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed"> <dt>Messages</dt> <dd>9,872</dd> </dl> <dl class="pairs pairs--justified"> <dt> Helped</dt> <dd>1,855</dd> </dl> <dl class="pairs pairs--justified"> <dt>Reputation </dt> <dd> <a href="/reputation/authors/d-a-tony-stewart.134022" class="fauxBlockLink-linkRow u-concealed">3,711</a> </dd> </dl> <dl class="pairs pairs--justified"> <dt>Reaction score</dt> <dd>2,409</dd> </dl> <dl class="pairs pairs--justified pairs--xbBoxed trophyBlock"> <dt>Trophy points</dt> <dd>1,413</dd> </dl> <dl class="pairs pairs--justified locationBlock"> <dt>Location</dt> <dd> <a href="/misc/location-info?location=Richmond+Hill%2C+ON%2C+Canada" rel="nofollow noreferrer" target="_blank" class="u-concealed">Richmond Hill, ON, Canada</a> </dd> </dl> <dl class="pairs pairs--justified creditBlock"> <dt title="Activity points">Activity points</dt> <dd> <a href="/activity/" data-xf-click="overlay" class="fauxBlockLink-blockLink u-concealed"> 63,148 </a> </dd> </dl> </div> <span class="message-userArrow"></span> </section> </div> <div class="message-cell message-cell--main"> <div class="message-main js-quickEditTarget"> <div class="message-content js-messageContent"> <div class="message-userContent lbContainer js-lbContainer " data-lb-id="post-1784468" data-lb-caption-desc="D.A.(Tony)Stewart · Nov 23, 2024 at 3:24 PM"> <article class="message-body js-selectToQuote"> <div itemprop="text"> <div class="bbWrapper">The $60 solution is a bank of transistors on a water-immerse heatsink and a 50 mV/Imax current sense regulator with a range of selectable signals and I2C S/D ADC with 24 bit resolution to measure ripple Vpp overshoot, settling time and Vin RMS with another AC power regulator, (which are common where you live and contribute to grid instability from positive feedback effects!)<br /> <br /> <b><u>Don't go cheap on design specs. But test everything in a regulated closed-loop oven at 40' C in 60 seconds and sense hotspots. Consider a vibration table to test solder joints.</u></b><br /> <br /> When you are doing your design specs, show your progress after your internal review. Count the iterations. Before completing a rough 1 day H/W design we will approve your design spec with your budget.<br /> <br /> List at least half as many specs as Meanwell, Shindengen power or Lambda would and what S/W skills are avail?<br /> <div class="bbCodeBlock bbCodeBlock--unfurl js-unfurl fauxBlockLink" data-unfurl="true" data-result-id="214905" data-url="https://www.meanwell.com/productSoftware.aspx" data-host="www.meanwell.com" data-pending="false"> <div class="contentRow"> <div class="contentRow-main"> <h3 class="contentRow-header js-unfurl-title"> <a href="https://www.meanwell.com/productSoftware.aspx" class="link link--external fauxBlockLink-blockLink" target="_blank" rel="nofollow ugc noopener" data-proxy-href=""> Software Download-MEAN WELL Switching Power Supply Manufacturer </a> </h3> <div class="contentRow-snippet js-unfurl-desc">MEAN WELL is one of the world's few standard power supply mainly professional manufacturers, covering 0.5 to 25,600W products are widely used in industrial control, medical and other fields, in line with international safety certification, short delivery of spot inventory.</div> <div class="contentRow-minor contentRow-minor--hideLinks"> <span class="js-unfurl-favicon"> <img src="https://www.meanwell.com/img/favicon.ico" alt="www.meanwell.com" class="bbCodeBlockUnfurl-icon" data-onerror="hide-parent"/> </span> www.meanwell.com </div> </div> </div> </div> <br /> <div class="bbImageWrapper js-lbImage" title="1732376376179.png" data-src="https://www.edaboard.com/attachments/1732376376179-png.195509/" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1"> <img src="https://www.edaboard.com/attachments/1732376376179-png.195509/" data-url="" class="bbImage" data-zoom-target="1" style="" alt="1732376376179.png" title="1732376376179.png" width="1331" height="1326" loading="lazy" /> </div><br /> Ref <a href="https://www.shindengen.com/products/electro/technology/carelectro/" target="_blank" class="link link--external" rel="nofollow ugc noopener">https://www.shindengen.com/products/electro/technology/carelectro/</a><br /> <br /> What EV specs are you planning to meet?</div> </div> <div class="js-selectToQuoteEnd"> </div> </article> </div> <div class="message-lastEdit"> Last edited: <time class="u-dt" dir="auto" datetime="2024-11-23T15:46:21+0000" data-time="1732376781" data-date-string="Nov 23, 2024" data-time-string="3:46 PM" title="Nov 23, 2024 at 3:46 PM" itemprop="dateModified">Saturday at 3:46 PM</time> </div> </div> <footer class="message-footer"> <div class="message-microdata" itemprop="interactionStatistic" itemtype="https://schema.org/InteractionCounter" itemscope> <meta itemprop="userInteractionCount" content="0" /> <meta itemprop="interactionType" content="https://schema.org/LikeAction" /> </div> <div class="message-actionBar actionBar"> <div class="actionBar-set actionBar-set--external"> <a href="/threads/electronic-load-needed.413112/reply?quote=1784468" class="actionBar-action actionBar-action--reply" title="Reply, quoting this message" rel="nofollow" data-xf-click="quote" data-quote-href="/posts/1784468/quote">Reply</a> </div> </div> <div class="reactionsBar js-reactionsList "> </div> <br/> <div class="js-historyTarget message-historyTarget toggleTarget" data-href="trigger-href"></div> </footer> </div> </div> <div class="message-cell message-cell--vote"> <div class="message-column"> <div class="contentVote js-contentVote " data-xf-init="content-vote" data-content-id="post-1784468"> <meta itemprop="upvoteCount" content="0" /> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--up " data-vote="up"><span class="u-srOnly">Upvote</span></a> <span class="contentVote-score js-voteCount" data-score="0">0</span> <a href="javascript:" class="contentVote-vote is-disabled contentVote-vote--down " data-vote="down"><span class="u-srOnly">Downvote</span></a> </div> </div> </div> </div> </article> </div> </div> </div> <div class="inContentAd"><div id='div-gpt-eda_thread1'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eda_thread1'); }); </script> </div> </div> <div class="inContentAd"><div id='div-gpt-eda_thread2'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eda_thread2'); }); </script> </div></div> <div class="inContentAd"><div id='div-gpt-eda_thread3'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eda_thread3'); }); </script> </div></div> <form action="/threads/electronic-load-needed.413112/add-reply" method="post" class="block js-quickReply" data-xf-init="attachment-manager quick-reply ajax-submit draft" data-draft-url="/threads/electronic-load-needed.413112/draft" data-draft-autosave="60" data-captcha-context="xf_guest_thread_quick_reply" data-message-container="div[data-type='post'] .js-replyNewMessageContainer" > <input type="hidden" name="_xfToken" value="1732687310,0b67ad55346d2791e439d8324e42c3e4" /> <div class="block-container"> <div class="block-body"> <div class="message message--quickReply block-topRadiusContent block-bottomRadiusContent"> <div class="message-inner"> <div class="message-cell message-cell--user"> <div class="message-user "> <div class="message-avatar"> <div class="message-avatar-wrapper"> <span class="avatar avatar--m avatar--default avatar--default--text" data-user-id="0"> <span class="avatar-u0-m"></span> </span> </div> </div> <span class="message-userArrow"></span> </div> </div> <div class="message-cell message-cell--main"> <div class="message-editorWrapper"> <textarea name="message" class="input input--fitHeight js-editor" style="min-height: 100px; " data-xf-init="textarea-handler user-mentioner emoji-completer draft-trigger" aria-label="Rich text box" data-min-height="100" placeholder="Write your reply..." data-deferred="off" data-xf-key="r" data-preview-url="/threads/electronic-load-needed.413112/reply-preview"></textarea> <div class="js-captchaContainer" data-row-type="fullWidth noGutter"></div> <noscript><input type="hidden" name="no_captcha" value="1" /></noscript> <div class="formButtonGroup "> <div class="formButtonGroup-primary"> <button type="submit" class="button--primary button button--icon button--icon--reply"><span class="button-text"> Post reply </span></button> </div> <div class="formButtonGroup-extra"> <button type="button" class="button--link button--multiQuote button button--icon button--icon--quote" style="display: none;" data-xf-init="multi-quote" data-href="/threads/electronic-load-needed.413112/multi-quote" data-message-selector=".js-post" data-storage-key="multiQuoteThread" data-add-message="Message added to multi-quote." data-remove-message="Message removed from multi-quote."><span class="button-text"> Insert quotes… </span></button> </div> <input type="hidden" name="last_date" value="1732375458" autocomplete="off" /> <input type="hidden" name="last_known_date" value="1732375458" autocomplete="off" /> <input type="hidden" name="load_extra" value="1" /> </div> <div class="advancedSytntaxContainer"> <select name="code_listing" class="input"> <option value="select_listing">- syntax highlighter -</option> <option value="actionscript">ActionScript</option> <option value="actionscript3">ActionScript 3</option> <option value="apache">Apache config</option> <option value="applescript">AppleScript</option> <option value="asm">ASM</option> <option value="asp">ASP</option> <option value="bash">Bash</option> <option value="basic4gl">Basic (Bascom)</option> <option value="c">C</option> <option value="c_loadrunner">C (LoadRunner)</option> <option value="c_mac">C (Mac)</option> <option value="caddcl">CAD DCL</option> <option value="cadlisp">CAD Lisp</option> <option value="cfm">ColdFusion</option> <option value="cpp">C++</option> <option value="cpp-qt" class="sublang"> C++ (QT)</option> <option value="csharp">C#</option> <option value="css">CSS</option> <option value="delphi">Delphi</option> <option value="div">DIV</option> <option value="dot">dot</option> <option value="fortran">Fortran</option> <option value="html4strict">HTML</option> <option value="html5">HTML 5</option> <option value="java">Java</option> <option value="java5">Java(TM) 2 PSE 5.0</option> <option value="javascript">Javascript</option> <option value="jquery">jQuery</option> <option value="lisp">Lisp</option> <option value="mysql">MySQL</option> <option value="newlisp">newlisp</option> <option value="nsis">NSIS</option> <option value="objc">Objective-C</option> <option value="pascal">Pascal</option> <option value="perl">Perl</option> <option value="perl6">Perl 6</option> <option value="php">PHP</option> <option value="php-brief" class="sublang"> PHP (brief)</option> <option value="pycon">Python (console)</option> <option value="python">Python</option> <option value="rails">Rails</option> <option value="ruby">Ruby</option> <option value="scilab">SciLab</option> <option value="smarty">Smarty</option> <option value="sql">SQL</option> <option value="vb">Visual Basic</option> <option value="vbnet">vb.net</option> <option value="verilog">Verilog</option> <option value="vhdl">VHDL</option> <option value="visualfoxpro">Visual Fox Pro</option> <option value="visualprolog">Visual Prolog</option> <option value="whitespace">Whitespace</option> <option value="xml">XML</option> </select> </div> <div id="vlatex_commandmenu_container"> <div class="collapse" id="vlatex_commandmenu_title"> <h2><img src="/vlatex/pics/6_c51d7e23458ca0e7373a8ed6ab56b2b9.png" alt="LaTeX" title="LaTeX" style="vertical-align: -2.16pt"> Commands Quick-Menu:</h2> <img id="collapse_vlatex_commandmenu" src="/styles/vlatex/images/buttons/collapse_40b.png" alt="" border="0"> </div> <ul class="blockrow vlatex_commandmenu_ul1" style="display:none;" id="vlatex_commandmenu"> <li title="\displaystyle"> <div title="Displayed style (bigger equations)"></div> </li> <li title="\frac{#}{ }"> <div title="Fraction"></div> </li> <li title="\sqrt{#}"> <div title="Square root"></div> </li> <li title="\sqrt[n]{#}"> <div title="Nth root"></div> </li> <li title="{#}^{ }"> <div title="Power"></div> </li> <li title="{#}_{ }"> <div title="Subscript"></div> </li> <li title="\infty"> <div title="Infinity"></div> </li> <li title="\sin"> <div title="Sine"></div> </li> <li title="\cos"> <div title="Cosine"></div> </li> <li title="\tan"> <div title="Tangent"></div> </li> <li title="\lim_{x \to \infty}"> <div title="Limit"> </div> </li> <li title="\vec{#}"> <div title="Vector arrow"> </div> </li> <li title="\hat{#}"> <div title="Unitary vector"> </div> </li> <li title="\bar{#}"> <div title="Bar"> </div> </li> <li title="\hat{\imath}"> <div title="Unitary vector in the X axis"></div> </li> <li title="\hat{\jmath}"> <div title="Unitary vector in the Y axis"></div> </li> <li title="\hat{k}"> <div title="Unitary vector in the Z axis"></div> </li> <li title="\sum_{n = 0}^\infty"> <div title="Sum"> </div> </li> <li title="\prod_{n = 0}^\infty"> <div title="Product"> </div> </li> <li title="\left( # \right)"> <div title="Extensible brakets"> </div> </li> <li title="\left\{ # \right\}"> <div title="Extensible curly brackets"></div> </li> <li title="\left[ # \right]"> <div title="Extensible square brackets"> </div> </li> <li title="\left\vert{} # \right\vert{}"> <div title="Extensible vertical bars"> </div> </li> <li title="\left< # \right>"> <div title="Extensible triangular brackets"> </div> </li> <li title="\ldots"> <div title="Three dots"> </div> </li> <li title="\int"> <div title="Integral"> </div> </li> <li title="\oint"> <div title="Closed integral"> </div> </li> <li title="\iint"> <div title="Double integral"> </div> </li> <li title="\iiint"> <div title="Triple integral"> </div> </li> <li title="\alpha"> <div title="Alpha"> </div> </li> <li title="\beta"> <div title="Beta"> </div> </li> <li title="\gamma"> <div title="Gamma"> </div> </li> <li title="\delta"> <div title="Delta"> </div> </li> <li title="\epsilon"> <div title="Epsilon"> </div> </li> <li title="\varepsilon"> <div title="Alternative Epsilon"> </div> </li> <li title="\theta"> <div title="Theta"> </div> </li> <li title="\kappa"> <div title="Kappa"> </div> </li> <li title="\lambda"> <div title="Lambda"> </div> </li> <li title="\mu"> <div title="Mu"> </div> </li> <li title="\nu"> <div title="Nu"> </div> </li> <li title="\pi"> <div title="Pi"> </div> </li> <li title="\rho"> <div title="Rho"> </div> </li> <li title="\sigma"> <div title="Sigma"> </div> </li> <li title="\tau"> <div title="Tau"> </div> </li> <li title="\phi"> <div title="Phi"> </div> </li> <li title="\varphi"> <div title="Alternative Phi"> </div> </li> <li title="\psi"> <div title="Psi"> </div> </li> <li title="\omega"> <div title="Omega"> </div> </li> <li title="\Gamma"> <div title="Capital Gamma"> </div> </li> <li title="\Delta"> <div title="Capital Delta"> </div> </li> <li title="\Lambda"> <div title="Capital Lambda"> </div> </li> <li title="\Phi"> <div title="Capital Phi"> </div> </li> <li title="\Psi"> <div title="Capital Psi"> </div> </li> <li title="\Omega"> <div title="Capital Omega"></div> </li> <li title="\propto"> <div title="Proportional to"></div> </li> <li title="\neq"> <div title="Not equal"></div> </li> <li title="\equiv"> <div title="Equivalent"></div> </li> <li title="\approx"> <div title="Approximate"></div> </li> <li title="\cong"> <div title="Congruent or Isomorph"></div> </li> <li title="\leqslant"> <div title="Less than or equal to"></div> </li> <li title="\geqslant"> <div title="Greater than or equal to"></div> </li> <li title="\ll"> <div title="Much less than"></div> </li> <li title="\gg"> <div title="Much greater than"></div> </li> <li title="\subset"> <div title="Sub-set"></div> </li> <li title="\in"> <div title="In"></div> </li> <li title="\notin"> <div title="Not in"></div> </li> <li title="\forall"> <div title="For all"></div> </li> <li title="\exists"> <div title="Exists"></div> </li> <li title="\nexists"> <div title="Not exists"></div> </li> <li title="\emptyset"> <div title="Empty set"></div> </li> <li title="\pm"> <div title="Plus or minus"></div> </li> <li title="\mp"> <div title="Minus or plus"></div> </li> <li title="\times"> <div title="Times (cross product)"></div> </li> <li title="\cdot"> <div title="Dot (scalar product)"></div> </li> <li title="\otimes"> <div title="Direct product"></div> </li> <li title="\oplus"> <div title="Direct sum"></div> </li> <li title="\mathrm{d}"> <div title="Differential"></div> </li> <li title="\partial"> <div title="Partial"></div> </li> <li title="\frac{\mathrm{d} #}{\mathrm{d} }"> <div title="Total derivative"> </div> </li> <li title="\frac{\partial #}{\partial }"> <div title="Partial derivative"> </div> </li> <li title="\nabla"> <div title="Nabla"></div> </li> <li title="\to"> <div title="Tends to"></div> </li> <li title="\mapsto"> <div title="Maps to"></div> </li> <li title="\leftarrow"> <div title="Left arrow"></div> </li> <li title="\uparrow"> <div title="Up arrow"></div> </li> <li title="\downarrow"> <div title="Down arrow"></div> </li> <li title="\Rightarrow"> <div title="Double right arrow"></div> </li> <li title="\Leftrightarrow"> <div title="Double left and right arrow"></div> </li> <li title="\xrightarrow{#}"> <div title="Extensible right arrow"> </div> </li> <li title="\circlearrowleft"> <div title="Circle arrow left"></div> </li> <li title="\circlearrowright"> <div title="Circle arrow right"> </div> </li> </ul> </div> </div> </div> </div> </div> </div> </div> </form> <div class="block" data-widget-id="47" data-widget-key="xfes_thread_view_below_quick_reply_similar_threads" data-widget-definition="xfes_similar_threads"> <div class="block-container"> <h3 class="block-minorHeader">Similar threads</h3> <ul class="block-body"> <li class="block-row"> <div class="contentRow"> <div class="contentRow-figure"> <a href="/members/engineerftw.691211/" class="avatar avatar--xxs avatar--default avatar--default--dynamic" data-user-id="691211" data-xf-init="member-tooltip" style="background-color: #cc6699; color: #602040"> <span class="avatar-u691211-s" role="img" aria-label="engineerftw">E</span> </a> </div> <div class="contentRow-main contentRow-main--close"> <a href="/threads/surpress-emi-from-switched-inductive-load-with-one-wire-access.412922/">Surpress EMI from switched inductive load with one wire access</a> <div class="contentRow-minor contentRow-minor--hideLinks"> <ul class="listInline listInline--bullet"> <li>Started by engineerftw</li> <li><time class="u-dt" dir="auto" datetime="2024-11-05T20:01:54+0000" data-time="1730836914" data-date-string="Nov 5, 2024" data-time-string="8:01 PM" title="Nov 5, 2024 at 8:01 PM">Nov 5, 2024</time></li> <li>Replies: 0</li> </ul> </div> <div class="contentRow-minor contentRow-minor--hideLinks"> <a href="/forums/analog-circuit-design.38/">Analog Circuit Design</a> </div> </div> </div> </li> <li class="block-row"> <div class="contentRow"> <div class="contentRow-figure"> <a href="/members/yefj.624287/" class="avatar avatar--xxs avatar--default avatar--default--dynamic" data-user-id="624287" data-xf-init="member-tooltip" style="background-color: #47a329; color: #091405"> <span class="avatar-u624287-s" role="img" aria-label="yefj">Y</span> </a> </div> <div class="contentRow-main contentRow-main--close"> <a href="/threads/transistor-limiting-current-on-the-output-load-problem-in-simulation.412855/">transistor limiting current on the output load problem in simulation</a> <div class="contentRow-minor contentRow-minor--hideLinks"> <ul class="listInline listInline--bullet"> <li>Started by yefj</li> <li><time class="u-dt" dir="auto" datetime="2024-10-29T09:49:53+0000" data-time="1730195393" data-date-string="Oct 29, 2024" data-time-string="9:49 AM" title="Oct 29, 2024 at 9:49 AM">Oct 29, 2024</time></li> <li>Replies: 1</li> </ul> </div> <div class="contentRow-minor contentRow-minor--hideLinks"> <a href="/forums/analog-circuit-design.38/">Analog Circuit Design</a> </div> </div> </div> </li> <li class="block-row"> <div class="contentRow"> <div class="contentRow-figure"> <a href="/members/zxcv2201.664254/" class="avatar avatar--xxs avatar--default avatar--default--dynamic" data-user-id="664254" data-xf-init="member-tooltip" style="background-color: #ebadad; color: #b82e2e"> <span class="avatar-u664254-s" role="img" aria-label="zxcv2201">Z</span> </a> </div> <div class="contentRow-main contentRow-main--close"> <a href="/threads/diode-connected-load.409719/">diode connected load</a> <div class="contentRow-minor contentRow-minor--hideLinks"> <ul class="listInline listInline--bullet"> <li>Started by zxcv2201</li> <li><time class="u-dt" dir="auto" datetime="2024-01-23T03:14:51+0000" data-time="1705979691" data-date-string="Jan 23, 2024" data-time-string="3:14 AM" title="Jan 23, 2024 at 3:14 AM">Jan 23, 2024</time></li> <li>Replies: 1</li> </ul> </div> <div class="contentRow-minor contentRow-minor--hideLinks"> <a href="/forums/analog-circuit-design.38/">Analog Circuit Design</a> </div> </div> </div> </li> <li class="block-row"> <div class="contentRow"> <div class="contentRow-figure"> <a href="/members/abicash.121745/" class="avatar avatar--xxs avatar--default avatar--default--dynamic" data-user-id="121745" data-xf-init="member-tooltip" style="background-color: #1f7a7a; color: #70dbdb"> <span class="avatar-u121745-s" role="img" aria-label="abicash">A</span> </a> </div> <div class="contentRow-main contentRow-main--close"> <a href="/threads/mosfet-blows-in-electronic-load-design.406584/">MOSFET blows in Electronic load design</a> <div class="contentRow-minor contentRow-minor--hideLinks"> <ul class="listInline listInline--bullet"> <li>Started by abicash</li> <li><time class="u-dt" dir="auto" datetime="2023-04-06T15:19:51+0100" data-time="1680790791" data-date-string="Apr 6, 2023" data-time-string="3:19 PM" title="Apr 6, 2023 at 3:19 PM">Apr 6, 2023</time></li> <li>Replies: 14</li> </ul> </div> <div class="contentRow-minor contentRow-minor--hideLinks"> <a href="/forums/analog-circuit-design.38/">Analog Circuit Design</a> </div> </div> </div> </li> <li class="block-row"> <div class="contentRow"> <div class="contentRow-figure"> <a href="/members/leo-27.681475/" class="avatar avatar--xxs avatar--default avatar--default--dynamic" data-user-id="681475" data-xf-init="member-tooltip" style="background-color: #99cc33; color: #2e3d0f"> <span class="avatar-u681475-s" role="img" aria-label="Leo@27">L</span> </a> </div> <div class="contentRow-main contentRow-main--close"> <a href="/threads/question-about-heavy-load-amplifier-compensation-structure.409659/">question about heavy load amplifier compensation structure</a> <div class="contentRow-minor contentRow-minor--hideLinks"> <ul class="listInline listInline--bullet"> <li>Started by Leo@27</li> <li><time class="u-dt" dir="auto" datetime="2024-01-16T09:26:06+0000" data-time="1705397166" data-date-string="Jan 16, 2024" data-time-string="9:26 AM" title="Jan 16, 2024 at 9:26 AM">Jan 16, 2024</time></li> <li>Replies: 7</li> </ul> </div> <div class="contentRow-minor contentRow-minor--hideLinks"> <a href="/forums/analog-circuit-design.38/">Analog Circuit Design</a> </div> </div> </div> </li> </ul> </div> </div> <div class="blockMessage blockMessage--none"> </div> </div> </div> <div class="p-sidebarWrapper"> <div class="p-body-sidebar"> <div class="block"> <div class="block-container" data-widget-id="46" data-widget-key="right_search_top" data-widget-definition="html"> <h3 class="block-minorHeader">Part and Inventory Search</h3> <div class="block-body block-row"> <center><div id='div-gpt-eda_customsearchbox'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eda_customsearchbox'); }); </script> </div> </center> </div> </div> </div> <div class="block"> <div class="block-container" data-widget-id="44" data-widget-key="right_rail_top_ga" data-widget-definition="html"> <h3 class="block-minorHeader">Welcome to EDABoard.com</h3> <div class="block-body block-row"> <center><div id='div-gpt-eda_sidebar1'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eda_sidebar1'); }); </script> </div> </center> </div> </div> </div> <div class="block"> <div class="block-container" data-widget-id="45" data-widget-key="right_rail_middle_bottom_ga" data-widget-definition="html"> <h3 class="block-minorHeader">Sponsor</h3> <div class="block-body block-row"> <center> <div id='div-gpt-eda_sidebarbottom'> <script> googletag.cmd.push(function() { googletag.display('div-gpt-eda_sidebarbottom'); }); </script> </div> </center> </div> </div> </div> </div> </div> </div> <div class="p-breadcrumbs--parent p-breadcrumbs--bottom"> <ul class="p-breadcrumbs p-breadcrumbs--bottom" itemscope itemtype="https://schema.org/BreadcrumbList"> <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem"> <a href="/#analog-design.10" itemprop="item"> <span itemprop="name">Analog Design</span> </a> <meta itemprop="position" content="1" /> </li> <li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem"> <a href="/forums/analog-circuit-design.38/" itemprop="item"> <span itemprop="name">Analog Circuit Design</span> </a> <meta itemprop="position" content="2" /> </li> </ul> </div> </div> </div> </div>  <footer class="p-footer" id="footer"> <div class="p-footer--container footer-stretched"> <div class="p-footer-custom"> <div class="p-footer-inner"> <div class="xb-footer--wrapper"> <div class="xb-footer-block xb-footer-block-1"> <div class="p-header-logo p-header-logo--image"> <img src="/styles/images/edaboard-logo-ot-253w.png" alt="edaboard.com" class="logo-desktop" srcset="/styles/images/edaboard-logo-ot-253w.png"> </div> <div class="p-socialDescription"><h3>Connect with us</h3></div> <div class="shareButtons shareButtons--iconic"> <a class="shareButtons-button shareButtons-button--brand shareButtons-button--facebook" href="https://www.facebook.com/EDABoard/" target="_blank" rel="noopener"> <i aria-hidden="true"></i> <span>Facebook</span> </a> <a class="shareButtons-button shareButtons-button--brand shareButtons-button--twitter" href="https://twitter.com/EDAboard" target="_blank" rel="noopener"> <svg class="x-twitter-svg" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M389.2 48h70.6L305.6 224.2 487 464H345L233.7 318.6 106.5 464H35.8L200.7 275.5 26.8 48H172.4L272.9 180.9 389.2 48zM364.4 421.8h39.1L151.1 88h-42L364.4 421.8z"/></svg> <span>Twitter</span> </a> <a class="shareButtons-button shareButtons-button--email" href="/misc/contact" data-xf-click="overlay"> <i></i> <span>Contact us</span> </a> </div> </div> <div class="xb-footer-block xb-footer-block-2"> <div class="block" data-widget-id="0" data-widget-key="" data-widget-definition="online_statistics"> <div class="block-container"> <h3 class="block-minorHeader">Online statistics</h3> <div class="block-body block-row"> <dl class="pairs pairs--justified"> <dt>Members online</dt> <dd>2</dd> </dl> <dl class="pairs pairs--justified"> <dt>Guests online</dt> <dd>1,349</dd> </dl> <dl class="pairs pairs--justified"> <dt>Total visitors</dt> <dd>1,351</dd> </dl> </div> <div class="block-footer"> Totals may include hidden visitors. </div> </div> </div> </div> <div class="xb-footer-block xb-footer-block-3"> <div class="block" data-widget-id="0" data-widget-key="" data-widget-definition="forum_statistics"> <div class="block-container"> <h3 class="block-minorHeader">Forum statistics</h3> <div class="block-body block-row"> <dl class="pairs pairs--justified count--threads"> <dt>Threads</dt> <dd>385,683</dd> </dl> <dl class="pairs pairs--justified count--messages"> <dt>Messages</dt> <dd>1,705,205</dd> </dl> <dl class="pairs pairs--justified count--users"> <dt>Members</dt> <dd>609,526</dd> </dl> <dl class="pairs pairs--justified"> <dt>Latest member</dt> <dd><a href="/members/doctor_asan.691709/" class="username " dir="auto" data-user-id="691709" data-xf-init="member-tooltip">Doctor_Asan</a></dd> </dl> </div> </div> </div> </div> <div class="xb-footer-block xb-footer-block-4"> <h3><a class=" " href="/whats-new/">What's new</a></h3> <ul class="footerList"> <li><i class="fa--xf fal fa-caret-right" aria-hidden="true"></i> <a class=" " href="/whats-new/posts/" rel="nofollow">New posts</a></li> <li><i class="fa--xf fal fa-caret-right" aria-hidden="true"></i> <a class=" " href="/whats-new/profile-posts/" rel="nofollow">New profile posts</a></li> <li><i class="fa--xf fal fa-caret-right" aria-hidden="true"></i> <a class=" " href="/whats-new/latest-activity" rel="nofollow">Latest activity</a></li> </ul> </div> </div> </div> </div> <div class="p-footer-copyright"> <div class="p-footer-inner"> <div class="p-footer-copyright--flex"> <div class="copyright-left"> Copyright © <script type="text/javascript">d = new Date();y = d.getFullYear();document.write(y);</script> WTWH Media, LLC. All Rights Reserved. </div> <div class="copyright-right"> <div class="p-footer-default"> <div class="p-footer-inner"> <div class="p-footer-row"> <div class="p-footer-row-main"> <ul class="p-footer-linkList"> <li class="p-linkList-changeStyle"><a href="/misc/style" data-xf-click="overlay" data-xf-init="tooltip" title="Style: Green Nova Style" rel="nofollow"> Style chooser </a></li> <li class="p-linkList-changeWidth"><a class="pageWidthToggle xb-toggle-default" role="button" tabindex="0" data-xf-click="toggle" data-target="html" data-active-class="xb-toggle-default" data-xf-init="toggle-storage" data-storage-type="cookie" data-storage-expiry="31556926" data-storage-key="_xb-width"> Change width </a></li> </ul> </div> <div class="p-footer-row-opposite"> <ul class="p-footer-linkList"> <li><a href="/misc/contact" data-xf-click="overlay">Contact us</a></li> <li><a href="/help/terms/">Terms and rules</a></li> <li><a href="/help/privacy-policy/">Privacy policy</a></li> <li><a href="/help/">Help</a></li> <li><a href="https://www.edaboard.com">Home</a></li> <li><a href="/forums/-/index.rss" target="_blank" class="p-footer-rssLink" title="RSS"><span aria-hidden="true"><i class="fa--xf fal fa-rss" aria-hidden="true"></i><span class="u-srOnly">RSS</span></span></a></li> </ul> </div> </div> </div> </div> </div> </div> </div> </div> </div> </footer> </div>  </div>  <div class="u-bottomFixer js-bottomFixTarget"> <ul class="notices notices--bottom_fixer js-notices" data-xf-init="notices" data-type="bottom_fixer" data-scroll-interval="6"> <li class="notice js-notice notice--primary notice--cookie" data-notice-id="-1" data-delay-duration="0" data-display-duration="0" data-auto-dismiss="0" data-visibility=""> <div class="notice-content"> <div class="u-alignCenter"> This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.<br /> By continuing to use this site, you are consenting to our use of cookies. </div> <div class="u-inputSpacer u-alignCenter"> <a href="/account/dismiss-notice" class="js-noticeDismiss button--notice button button--icon button--icon--confirm"><span class="button-text">Accept</span></a> <a href="/help/cookies" class="button--notice button"><span class="button-text">Learn more…</span></a> </div> </div> </li> </ul> </div> <div class="u-navButtons js-navButtons" data-trigger-type="up"> <a href="javascript:" class="button--scroll button"><span class="button-text"><i class="fa--xf fal fa-arrow-left" aria-hidden="true"></i><span class="u-srOnly">Back</span></span></a> </div> <div class="u-scrollButtons js-scrollButtons" data-trigger-type="up"> <a href="#top" class="button--scroll button" data-xf-click="scroll-to"><span class="button-text"><i class="fa--xf fal fa-arrow-up" aria-hidden="true"></i><span class="u-srOnly">Top</span></span></a> </div> <script src="/js/vendor/jquery/jquery-3.5.1.min.js?_v=5941fcb1"></script> <script src="/js/vendor/vendor-compiled.js?_v=5941fcb1"></script> <script src="/js/xf/core-compiled.js?_v=5941fcb1"></script> <script src="/js/xf/lightbox-compiled.js?_v=5941fcb1"></script> <script src="/js/xf/message.min.js?_v=5941fcb1"></script> <script src="/js/xf/captcha.min.js?_v=5941fcb1"></script> <script src="/js/XenCentral/AdvancedSyntax/AdvancedSyntax.js?_v=5941fcb1"></script> <script src="/js/XenCentral/LatexEnhanced/Latex.js?_v=5941fcb1"></script> <script src="/js/XenCentral/InContentAds/ads.js?_v=5941fcb1"></script> <script src="/js/sv/ese/xf/structure.min.js?_v=5941fcb1"></script> <script src="/js/xf/notice.min.js?_v=5941fcb1"></script> <script src="/js/CMTV/Math/preview-observer.min.js?_v=5941fcb1"></script> <script src="/js/CMTV/Math/selector-resolver.min.js?_v=5941fcb1"></script> <script src="/js/XenCentral/PrestitialAds/adlogic.js?_v=5941fcb1"></script> <script> $(".xb-searchWrapper").on("click", function(event) { $(".xb-searchWrapper").addClass("is-active"); event.stopPropagation(); }); $(".xb-searchWrapper").on("click", function(event) { event.stopPropagation(); }); $(document).on("click", function(event) { $(".xb-searchWrapper").removeClass("is-active"); }); </script> <script type="text/x-mathjax-config"> MathJax.Hub.Config({ // CMTV_Math_MathJax_CONFIG_START tex2jax: { processClass: "mathjax-proceed", ignoreClass: "mathjax-skip" }, asciimath2jax: { processClass: "mathjax-proceed", ignoreClass: "mathjax-skip" }, showMathMenu: 1, messageStyle: "none", displayAlign: "center", // CMTV_Math_MathJax_CONFIG_END }); </script> <script class="js-CMTV_Math_renderOptions" type="application/json">{"where":"everywhere","positions":false}</script> <script class="js-CMTV_Math_customRenderSelectors" type="application/json">[]</script> <script class="js-CMTV_Math_customSkipSelectors" type="application/json">[]</script> <script class="js-CMTV_Math_predefinedSelectors" type="application/json"> { "titles": [ ".p-title-value", ".contentRow-title", ".p-body-sidebar .contentRow-main > a", ".resourceSidebarList .contentRow-main > a", ".node-extra-title", ".structItem-title" ], "content": [ ".message-body", ".contentRow-snippet", ".tooltip-content", ".resourceBody-main", ".structItem-resourceTagLine", ".bbCodePreview-content", ".comment-body", "[data-widget-definition='new_profile_posts'] .contentRow-faderContent" ], "pages": [ "[data-template='help_page'] .p-body-pageContent", "[data-template='help_page'] .p-body-sideNavContent", "[data-template='help_index'] .p-body-pageContent", "[data-template='help_index'] .p-body-sideNavContent" ], "signatures": [ ".message-signature", "[data-template=member_view] .block-row:contains(Signature)" ], "about": [ "[data-template=member_view] .block-row:first-of-type" ], "skipDefault": [ ".bbCodeBlock", ".bbCodeInline", ".fr-box" ] } </script> <script>CMTV_Math.SResolver.resolve();</script> <script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/latest.js?config=TeX-MML-AM_CHTML&locale=en" async></script> <script> jQuery.extend(true, XF.config, { // userId: 0, enablePush: true, pushAppServerKey: 'BKKFDMIGuQhT+FucnXpcckaVtjefcMcAhtdcMRkFayTHEULDzVOJ9IS3izqQsL46077bdYSFHODSJubMG4mQatY=', url: { fullBase: 'https://www.edaboard.com/', basePath: '/', css: '/css.php?css=__SENTINEL__&s=9&l=1&d=1723721420', keepAlive: '/login/keep-alive' }, cookie: { path: '/', domain: '', prefix: 'xf_', secure: true, consentMode: 'simple', consented: ["optional","_third_party"] }, cacheKey: '0ee4c8275e62ef0a3470ed324594780d', csrf: '1732687310,0b67ad55346d2791e439d8324e42c3e4', js: {"\/js\/xf\/lightbox-compiled.js?_v=5941fcb1":true,"\/js\/xf\/message.min.js?_v=5941fcb1":true,"\/js\/xf\/captcha.min.js?_v=5941fcb1":true,"\/js\/XenCentral\/AdvancedSyntax\/AdvancedSyntax.js?_v=5941fcb1":true,"\/js\/XenCentral\/LatexEnhanced\/Latex.js?_v=5941fcb1":true,"\/js\/XenCentral\/InContentAds\/ads.js?_v=5941fcb1":true,"\/js\/sv\/ese\/xf\/structure.min.js?_v=5941fcb1":true,"\/js\/xf\/notice.min.js?_v=5941fcb1":true,"\/js\/CMTV\/Math\/preview-observer.min.js?_v=5941fcb1":true,"\/js\/CMTV\/Math\/selector-resolver.min.js?_v=5941fcb1":true,"\/js\/XenCentral\/PrestitialAds\/adlogic.js?_v=5941fcb1":true}, css: {"public:CMTV_Math.less":true,"public:attachments.less":true,"public:bb_code.less":true,"public:kl_amdp_merge_message.less":true,"public:lightbox.less":true,"public:message.less":true,"public:mrs_message.less":true,"public:notices.less":true,"public:share_controls.less":true,"public:svESE_autocomplete.less":true,"public:xb.less":true,"public:xb_search.less":true,"public:xb_welcome.less":true,"public:xcle_advanced_syntax.css":true,"public:xcle_latex.css":true,"public:xcpa_main.css":true,"public:xcpa_prestitial.css":true,"public:extra.less":true}, time: { now: 1732687310, today: 1732665600, todayDow: 3, tomorrow: 1732752000, yesterday: 1732579200, week: 1732147200 }, borderSizeFeature: '3px', fontAwesomeWeight: 'l', enableRtnProtect: true, enableFormSubmitSticky: true, uploadMaxFilesize: 268435456, allowedVideoExtensions: ["m4v","mov","mp4","mp4v","mpeg","mpg","ogv","webm"], allowedAudioExtensions: ["mp3","opus","ogg","wav"], shortcodeToEmoji: true, visitorCounts: { conversations_unread: '0', alerts_unviewed: '0', total_unread: '0', title_count: true, icon_indicator: true }, jsState: {}, publicMetadataLogoUrl: '', publicPushBadgeUrl: 'https://www.edaboard.com/styles/default/xenforo/bell.png' }); jQuery.extend(XF.phrases, { // date_x_at_time_y: "{date} at {time}", day_x_at_time_y: "{day} at {time}", yesterday_at_x: "Yesterday at {time}", x_minutes_ago: "{minutes} minutes ago", one_minute_ago: "1 minute ago", a_moment_ago: "A moment ago", today_at_x: "Today at {time}", in_a_moment: "In a moment", in_a_minute: "In a minute", in_x_minutes: "In {minutes} minutes", later_today_at_x: "Later today at {time}", tomorrow_at_x: "Tomorrow at {time}", day0: "Sunday", day1: "Monday", day2: "Tuesday", day3: "Wednesday", day4: "Thursday", day5: "Friday", day6: "Saturday", dayShort0: "Sun", dayShort1: "Mon", dayShort2: "Tue", dayShort3: "Wed", dayShort4: "Thu", dayShort5: "Fri", dayShort6: "Sat", month0: "January", month1: "February", month2: "March", month3: "April", month4: "May", month5: "June", month6: "July", month7: "August", month8: "September", month9: "October", month10: "November", month11: "December", active_user_changed_reload_page: "The active user has changed. Reload the page for the latest version.", server_did_not_respond_in_time_try_again: "The server did not respond in time. Please try again.", oops_we_ran_into_some_problems: "Oops! We ran into some problems.", oops_we_ran_into_some_problems_more_details_console: "Oops! We ran into some problems. Please try again later. More error details may be in the browser console.", file_too_large_to_upload: "The file is too large to be uploaded.", uploaded_file_is_too_large_for_server_to_process: "The uploaded file is too large for the server to process.", files_being_uploaded_are_you_sure: "Files are still being uploaded. Are you sure you want to submit this form?", attach: "Attach files", rich_text_box: "Rich text box", close: "Close", link_copied_to_clipboard: "Link copied to clipboard.", text_copied_to_clipboard: "Text copied to clipboard.", loading: "Loading…", you_have_exceeded_maximum_number_of_selectable_items: "You have exceeded the maximum number of selectable items.", processing: "Processing", 'processing...': "Processing…", showing_x_of_y_items: "Showing {count} of {total} items", showing_all_items: "Showing all items", no_items_to_display: "No items to display", number_button_up: "Increase", number_button_down: "Decrease", push_enable_notification_title: "Push notifications enabled successfully at Forum for Electronics", push_enable_notification_body: "Thank you for enabling push notifications!", pull_down_to_refresh: "Pull down to refresh", release_to_refresh: "Release to refresh", refreshing: "Refreshing…" , "svStandardLib_time.day": "{count} day", "svStandardLib_time.days": "{count} days", "svStandardLib_time.hour": "{count} hour", "svStandardLib_time.hours": "{count} hours", "svStandardLib_time.minute": "{count} minutes", "svStandardLib_time.minutes": "{count} minutes", "svStandardLib_time.month": "{count} month", "svStandardLib_time.months": "{count} months", "svStandardLib_time.second": "{count} second", "svStandardLib_time.seconds": "{count} seconds", "svStandardLib_time.week": "time.week", "svStandardLib_time.weeks": "{count} weeks", "svStandardLib_time.year": "{count} year", "svStandardLib_time.years": "{count} years" }); </script> <form style="display:none" hidden="hidden"> <input type="text" name="_xfClientLoadTime" value="" id="_xfClientLoadTime" title="_xfClientLoadTime" tabindex="-1" /> </form>  <script type="application/ld+json"> { "@context": "https://schema.org", "@type": "QAPage", "url": "https://www.edaboard.com/threads/electronic-load-needed.413112/", "mainEntity": { "@type": "Question", "@id": "https://www.edaboard.com/threads/electronic-load-needed.413112/", "name": "Electronic load needed", "datePublished": "2024-11-22T17:54:33+00:00", "url": "https://www.edaboard.com/threads/electronic-load-needed.413112/", "text": "Hi there\n\n\nWe are looking for best design an electronic load with power of 6000 watt\nMax volt is 0-400 volt resolution 0.1 volt\nMax current 0-100 amps resolution 0.1 amps\nThe mode is CC", "answerCount": 15, "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.edaboard.com/members/ahmedewest.691590/", "name": "AhmedEwest", "url": "https://www.edaboard.com/members/ahmedewest.691590/" }, "suggestedAnswer": [ { "@type": "Answer", "datePublished": "2024-11-23T15:24:18+00:00", "dateModified": "2024-11-23T15:46:21+00:00", "url": "https://www.edaboard.com/posts/1784468/", "text": "The $60 solution is a bank of transistors on a water-immerse heatsink and a 50 mV/Imax current sense regulator with a range of selectable signals and I2C S/D ADC with 24 bit resolution to measure ripple Vpp overshoot, settling time and Vin RMS with another AC power regulator, (which are common where you live and contribute to grid instability from positive feedback effects!)\n\nDon't go cheap on design specs. But test everything in a regulated closed-loop oven at 40' C in 60 seconds and sense hotspots. Consider a vibration table to test solder joints.\n\nWhen you are doing your design specs, show your progress after your internal review. Count the iterations. Before completing a rough 1 day H/W design we will approve your design spec with your budget.\n\nList at least half as many specs as Meanwell, Shindengen power or Lambda would and what S/W skills are avail?\nhttps://www.meanwell.com/productSoftware.aspx\n\n\nRef https://www.shindengen.com/products/electro/technology/carelectro/\n\nWhat EV specs are you planning to meet?", "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.edaboard.com/members/d-a-tony-stewart.134022/", "name": "D.A.(Tony)Stewart", "url": "https://www.edaboard.com/members/d-a-tony-stewart.134022/" } }, { "@type": "Answer", "datePublished": "2024-11-23T14:40:22+00:00", "dateModified": "2024-11-23T14:46:58+00:00", "url": "https://www.edaboard.com/posts/1784464/", "text": "also the leads will drop all sorts of voltages as you go from 0 - 100A - so such resolution at the battery load terminals is really a waste of time.\n\nPresume you have sense wires at the DUT, cable voltage drop isn't an issue as long as the load gets sufficient voltage.\n\n\nAn example to test SMPS 3.3 volt with max current 100 amps\nWe should connect our load and apply gradually current from 0.1 amps until achieve desired max load with no timing requirements its not pulses test and ramp test\n\nSo effectively no dynamic requirements, quasi-static load. Is 100 A @ 3.3V minimal voltage for rated current or do you want to go even lower (reserving sufficient margin for cable voltage drop)?\n1732373007\n2 x 2 m cable 35 mm\u00b2 gives about 2 mOhm, 0.2 V drop at 100 A.\nMinimal cross section for 100 A is about 16 mm\u00b2, gives already 0.44 V drop.", "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.edaboard.com/members/fvm.152255/", "name": "FvM", "url": "https://www.edaboard.com/members/fvm.152255/" } }, { "@type": "Answer", "datePublished": "2024-11-23T09:40:46+00:00", "url": "https://www.edaboard.com/posts/1784452/", "text": "I wonder if a negative adjustable DCDC current limiter can be made as a load for a positive supply if floating.\nThen it's one regulator sinking the device that is sourcing.\n\n Remote sensing is challenging, but it was a common practice on high-power analog supplies with SCR bridge ACDC pre-regulators made by HP to reduce losses.\n\nWe used to have an ATE for PS testing and it had a wide variety of tests.\nStability, noise and tolerance must be tested.\n\nThis looks more like a Buy than a Make work project.", "upvoteCount": 0, "author": { "@type": "Person", "@id": "https://www.edaboard.com/members/d-a-tony-stewart.134022/", "name": "D.A.(Tony)Stewart", "url": "https://www.edaboard.com/members/d-a-tony-stewart.134022/" } } ] }, "publisher": { "@type": "Organization", "name": "Forum for Electronics", "description": "International Electronics Discussion Forum: EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals", "url": "https://www.edaboard.com" } } </script> <script> $(function(){ var notice = $('.xb-welcome-notice'); if(notice.length){ var cookie = XF.Cookie.get('hide_welcome_notice'); if(!cookie){ XF.Cookie.set('hide_welcome_notice', Date.now()); notice.show(); } else if ((Date.now() - cookie) > 8.64e+7){ XF.Cookie.set('hide_welcome_notice', Date.now()); notice.show(); } else { notice.hide(); } } }); </script> </div> </body> </html>

CINXE.COM

Electronic load needed | Forum for Electronics