推挽式隔离Buck变换器的分析与研究  

Analysis and Study on the Push-Pull Isolated Buck Converter

作　　者：于洋[1] 张加胜[1] 

机构地区：[1]中国石油大学(华东),山东东营257061

出　　处：《电源世界》2011年第6期21-24,共4页The World of Power Supply

摘　　要：分析了推挽式隔离Buck变换器的工作原理;对励磁电感位于四绕组变压器一个原边绕组两端或两个副边绕组两端的情况,给出了变压器励磁电流及所有绕组中的电流波形,并推导了两个励磁电感在数值上的关系;最后通过电路仿真验证了该关系的正确性。The operation principle of the push-pull isolated buck converter is analyzed;the waveforms of the magnetizing current and all the winding currents are given by modeling the magnetizing inductance as being across one primary winding or the two secondary windings of the four-winding transformer and the relation in value is derived between the two magnetizing inductances;at last,the correctness of the expression is proved by circuit simulation.

关 键 词：隔离Buck变换器 变压器 励磁电感 

分 类 号：TN86[电子电信—信息与通信工程]