基于变压器等效电路模型的反激变换器原理分析  

Principle Analysis of Flyback Converter Based on Transformer Equivalent Circuit Model

作　　者：包尔恒[1] 何玲[1] 邓桂芳[1] BAO Er-heng;HE Ling;DENG Gui-fang(Guangdong Technical College of Water Resources and Electric,Guangzhou 510925,China)

机构地区：[1]广东水利电力职业技术学院

出　　处：《通信电源技术》2019年第11期25-26,共2页Telecom Power Technology

基　　金：广东水利电力职业技术学院“一流高职”建设项目（基金号：cy0604yj01）

摘　　要：反激变换器是广泛应用的电力电子电路拓扑,通常是将反激变换器中的变压器看作储能电感,即将变压器看作一对相互耦合的电感对其基本原理进行分析。文章将从变压器的等效电路模型出发,对电感电流连续和断续两种模式下反激变换器的原理及电量波形进行分析,从而达到对反激变换器本质原理更深刻的理解。Flyback converter is a widely used power electronic circuit topology.Generally,the transformer in flyback converter is regarded as energy storage inductor,that is,the transformer is regarded as a pair of mutual coupling inductors to analyze its basic principle.Based on the equivalent circuit model of the transformer,this paper analyzes the principle and electric waveform of flyback converter in two modes of continuous and intermittent inductive current,so as to achieve a deeper understanding of the essential principle of flyback converter.

关 键 词：反激变换器 励磁电感 电流连续 电流断续 

分 类 号：TM4[电气工程—电器]