用于通用输入电压应用的具有扩展增益的无桥PFC改进型SEPIC整流器

In this paper, a new single-phase ac–dc PFC bridgeless rectifier with multiplier stage to improve the efficiency at low input voltage and reduce the switch-voltage stress is introduced. The absence of an input rectifier bridge in the proposed rectifier and the presence of only two semiconductor switches in the current flowing path during each switching cycle result in less conduction losses and im...