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This paper first starts with reviewing several commonly practiced PWM schemes for the three-phase isolated buck matrix-type rectifier. Then, an optimal six-segment PWM scheme (“Type A”) is proposed. The analysis shows “Type A” PWM scheme has lower duty-cycle loss, maximum output inductor current ripple, and minimum switching loss comparing with other PWM schemes when the <sc>mosfet</sc>...
The zero-voltage switched (ZVS) PWM converter exhibits low primary-side switching loss and generated EMI. Furthermore, the ZVS technique can be used to increase the converter efficiency and higher power density. In this paper the ZVS operation of the MOSFET switches leveraged for a three-phase, isolated AC/DC converter is analyzed and operating states during the switch transitions discussed. The presented...
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