基于无源正激辅助电路的三相隔离全桥Boost PFC变换器启动及电压抑制方案

A starting and voltage spike suppression scheme based on a passive forward auxiliary circuit is proposed for the three-phase isolated full-bridge boost power factor correction (PFC) converter. Compared to the existing passive flyback auxiliary circuit, the structure in the secondary side of the integrated transformer is slightly more complicated in the passive forward auxiliary circuit. However, f...