资料介绍
电源技术
单级BUCK-BOOST变换器实现APFC的原理及分析
刘 宇 谢品芳 罗全明
重庆大学电气工程学院（400044）
摘 要：本文分析了用BUCK-
BOOST电路和反激变换器隔离实现单级功率因数校正的原理和变换过程，给出了电路的M
atlab仿真分析的模型。通过对变换器工作在DCM模式下的电路仿真，验证了此方法有良
好的效果。
关键词：功率因素校正 单级 反激变换器
Principle and analysis of a Single-Stage BUCK-BOOST Converter Achieving
APFC
Liu yu Xie Pinfang Luo Quanming
Electrical Engineering College of ChongQing University
Abstract: This paper presents the theory of single-stage converter
achieving high-power-factor by BUCK-BOOST circuit and isolated by flyback
converter, giving the simulated model with Matlab and the process of
transform. The results of simulation which the converter working in the
DCM(discontinuous conduction mode)verify that the method has a good effect.
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