LOW VOLTAGE APPARATUS ›› 2021, Vol. 0 ›› Issue (10): 57-64.doi: 10.16628/j.cnki.2095-8188.2021.10.010

• Power Quality • Previous Articles     Next Articles

Research on Flexible Mode Totem-pole Bridgeless PFC Circuit

LIN Jun   

  1. State Grid Fuzhou Changle District Power Supply Company,Fuzhou 350202,China
  • Received:2021-06-24 Online:2021-10-30 Published:2022-01-25

Abstract:

In order to reduce conduction loss of the AC-DC converter,a flexible mode totem-pole bridgeless PFC circuit based on totem-pole PFC circuit is proposed.The operating principle,working process and steady state characteristics of the flexible mode PFC circuit are analyzed in detail.Then key parameters are designed and analyzed.A flexible mode totem-pole bridgeless PFC prototype with 90~120 Vrms low input,176~264 Vrms high input and 400 V/600 W output is built and tested.The feasibility and good characteristics of the flexible mode totem-pole bridgeless PFC circuit are verified by the experimental results.

Key words: power factor correction, flexible mode totem-pole bridgeless PFC circuit, key parameters

CLC Number: