RCC 方式输出变压器漏磁分布及其影响

Distribution and Effects of Leakage Inductance of Transformer for Ringing Choke Converter

阐述了ＲＣＣ方式输出变压器的结构特征．采用感应电压法测量了漏磁分布．分析了漏磁对输出电压稳定性的影响．结果表明，带有绝缘夹片的输出变压器的漏磁主要分布在主磁通的轴线方向上．输出滤波器的电感线圈应尽量避免配置在主磁通轴线方向附近．否则，由于漏磁的影响，将引起输出纹波电压的变化．

The structure of output transformer for ringing choke converter is expounded. The distribution of leakage magnetic field is discussed by measuring the inductive voltage. The effects of leakage inductance on output ripple is investigated. The results show that leakage magnetic field distributes around the magnetic axis. To reduce output ripple,output inductance should be kept off the output transformer.