有源箝位正激变换器的功率损耗分析  

The Analysis of Power Dissipation of Active-Clamp Forward Converter

作　　者：吴冬梅[1] 蔡丽娟[1] 

机构地区：[1]华南理工大学电力学院雅达电源实验室,广州510640

出　　处：《电源世界》2005年第5期31-35,共5页The World of Power Supply

摘　　要：本文详细阐述了有源箝位正激变换器的工作原理,分析了各工作模态的功率损耗,得出了功率损耗与励磁电感间的关系。经理论推导证明,存在着一个最优的励磁电感值,可以使变换器功率损耗最小,输出效率最高。This paper represents the operations of active-elamp forward converter in detail. By analyzing the power dissipation of each operation state, the relationship between the power dissipation and the magnetizing inductance of the isolation transformer is got. It is verified theoretically that there is a non-infinite but optimal magnetizing inductance for the least dissipation and highest output efficiency of the converter.

关 键 词：有源箝位 功率损耗 励磁电感 最优的 

分 类 号：TM92[电气工程—电力电子与电力传动]