A Study on Unidirectional Analog Output Voltage Inverter for Capacitive Load

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publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">A Study on Unidirectional Analog Output Voltage Inverter for Capacitive Load</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sun-Ki%20Hong">Sun-Ki Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Nam-HeeByeon"> Nam-HeeByeon</a>, <a href="https://publications.waset.org/abstracts/search?q=Jung-Seop%20Lee"> Jung-Seop Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Tae-Sam%20Kang"> Tae-Sam Kang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For Common R or R-L load to apply arbitrary voltage, the bridge traditional inverters don鈥檛 have any difficulties by PWM method. However for driving some piezoelectric actuator, arbitrary voltage not a pulse but a steady voltage should be applied. Piezoelectric load is considered as R-C load and its voltage does not decrease even though the applied voltage decreases. Therefore it needs some special inverter with circuit that can discharge the capacitive energy. Especially for unidirectional arbitrary voltage driving like as sine wave, it becomes more difficult problem. In this paper, a charge and discharge circuit for unidirectional arbitrary voltage driving for piezoelectric actuator is proposed. The circuit has charging and discharging switches for increasing and decreasing output voltage. With the proposed simple circuit, the load voltage can have any unidirectional level with tens of bandwidth because the load voltage can be adjusted by switching the charging and discharging switch appropriately. The appropriateness is proved from the simulation of the proposed circuit. <iframe src="https://publications.waset.org/abstracts/8464.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DC-DC%20converter" title="DC-DC converter">DC-DC converter</a>, <a href="https://publications.waset.org/abstracts/search?q=analog%20output%20voltage" title=" analog output voltage"> analog output voltage</a>, <a href="https://publications.waset.org/abstracts/search?q=sinusoidal%20drive" title=" sinusoidal drive"> sinusoidal drive</a>, <a href="https://publications.waset.org/abstracts/search?q=piezoelectric%20load" title=" piezoelectric load"> piezoelectric load</a>, <a href="https://publications.waset.org/abstracts/search?q=discharging%20circuit" title=" discharging circuit "> discharging circuit </a> </p> <a 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A Study on Unidirectional Analog Output Voltage Inverter for Capacitive Load