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In recent years, the trend toward higher switching frequency in inverters has been advancing, and there is a growing demand for applications involving high voltage. In particular, there is a need to d...evelop inverters for special industrial applications where PWM control is possible, and the load is capacitive. In this application, enormous turn-on switching loss occurs due to the energy of the output capacitance, even though the load current is not flowing. This paper proposes a novel soft-switching inverter to reduce this switching loss not only the main switch but also the auxiliary switch. The proposed inverter can attain soft-switching conditions for the main switch turn-on under zero-voltage switching (ZVS). Also, the auxiliary switch operates under zero-current switching (ZCS) turn-on using an auxiliary power supply of lower voltage than the main power supply. These features were successfully verified by the prototype of a small power experiment.続きを見る
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Mendeley出力
