无交叉影响的单片双路输出反激变换器

A Single Chip Double Output Flyback Converter Without Cross Effect

文中首先列举了几种传统的双路/多路输出变换器拓扑结构,从理论上分析得出这几种拓扑无法摆脱交叉影响的困扰,然后基于TI的电源芯片LM5032设计了一款双路隔离输出反激变换器,通过对LM5032芯片的功能分析得出该变换器的两条输出支路之间没有交叉影响,最后通过实验数据与波形验证了本设计。

This paper firstly enumerated several traditional dual/multiple output converter topology,derived from the theoretical analysis of this topology cannot get rid of the cross effect of several problems,then the power of the TI chip LM5032 was designed based on a dual isolated output flyback converter.Through the analysis of the function of the LM5032 chip,it was concluded that there was no cross influence between the two output branches of the converter.Finally,the design was verified by experimental data and waveform.