摘要
本文分析了开关电源共模EMI产生原因及传播方式,介绍了传统共模EMI抑制方法的特点,并且针对正激式变换器分析了共模EMI传播模型,提出了利用补偿原理抑制正激式变换器共模EMI的方法。
The generant reason and transimission method of CM EMI in switch power supply is analyzed in this paper. The method of suppress the traditional CM EMI is introduced. Aiming at the forward converter ,this paper analyzes the model that the CM EMI generate. A solution which uses passive compensation is proposed to suppress the CM EMI in the forward converter
出处
《电源世界》
2009年第8期41-43,共3页
The World of Power Supply
关键词
正激式变换器
无源补偿
共模EMI抑制
寄生电容
Forward converter, Passive compensation, CM EMI Suppression, Stray capacitance
