一种无桥APFC的控制方法研究

Research on a Control Method of Bridgless APFC

介绍一种无桥有源功率因数矫正(Active Power Factor Correction,APFC)的关键控制方法、无桥APFC较有桥APFC的优势、无桥APFC的控制原理。关键控制方法中重点讲述了电流环路和电压环路控制的实现方法与电流环路前馈控制方法,同时阐述了使用同步整流的作用、软件实现方法以及实验结果。

This paper introduces a key control method of bridgless Active Power Factor Correction(APFC),advantages of bridgless APFC over bridgless APFC,and control principle of bridgless APFC.In the key control methods,the realization method of current loop and voltage loop control and current loop feedforward control method are emphatically described.At the same time,the function of using synchronous rectification,software realization method and experimental results are expounded.