单端正激式脉冲隔离驱动电路的分析研究

Analysis and Study on the Single Ended Forward Isolation Drive Circuit

本文对采用变压器隔离的单端正激式脉冲驱动电路进行了分析研究,主要讨论了其传递宽脉冲触发存在的问题,采用高频调制脉冲列触发带来的优点,以及高频调制脉冲列触发所涉及的磁通复位、波形畸变及有关参数设计问题。该磁通复位的原理分析和方法,对于单正激开关电源设计等也具有指导和借鉴意义。

In this paper, the single ended forward thyristor drive circuit with transformer isolation is analyzeda nd investigated. The paper mainly discusses the problems as wide trigger pulse transferred , the advantages using high frequency trigger modulation pulse sequence and related problems such as magnetic flux reset, waveform distortion and relevant parameter design involved in high frequency trigger modulation pulse sequence. The research on mag- netic reset problem can provide good guidance and reference significance not only for the contents in this paper, but also for the switching mode power suply design.