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A zero-voltage switching (ZVS) full-bridge inverter and its modulation schemes have been investigated in previous literatures. Parallel snubber capacitors are utilized to reduce the turn-off loss of super-junction MOSFETs in the ZVS full-bridge inverter. However due to the MOSFET's nonlinear output capacitance together with the parallel snubber capacitor, the ZVS commutation is unable to be realized...
The ZVS-SVM controlled three-phase boost rectifier can realize ZVS operation for all switching devices. In this paper, the operation principal and design guideline are described in detail. The soft switching restriction is analyzed in particular. The experimental results of a 40 kW hardware prototype are presented to show the superiority of the topology and the reduction on loss.
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