一种新型谐振磁复位的单端正激变换器设计  

Design for A New Type of Resonant Reset Single——Ended Forward Converter

作　　者：张涌萍[1] 肖波[1] 

机构地区：[1]广东食品药品职业学院,广州510520

出　　处：《科学技术与工程》2013年第6期1626-1629,1637,共5页Science Technology and Engineering

摘　　要：介绍了一种通过变压器励磁电感与其并联的电容实现谐振磁复位的正激变换器,通过适当设计主电路参数,在不同情况下,能很好保证变压器可靠复位,同时保证开关管满足降额要求。给出了谐振电容的理论计算值,得到了变压器原边电压波形以及谐振电容电压电流的实验波形,实验结果表明变压器能复位且不饱和。A new type of resonant reset forward converter is discussed. Resonant reset of transformer is realized by magnetizing inductance and paralleled capacitors. Properly design the main circuit parameters, both resonant re set of transformer and derating requirements of switch are assured. Theoretical calculation value of resonant capaci tor is given, the transformer primary side voltage waveform and voltage and current waveforms of resonant capacitor are obtained, experiment results indicate reliable reset of transformer without saturation.

关 键 词：磁复位 正激变换器 变压器 谐振电容 

分 类 号：TN867[电子电信—信息与通信工程]