一种新颖的不对称半桥式准谐振变换器  

A Novel Quasi-Resonant Converter with Asymmetrical Half-Bridge Topology

作　　者：黄华芳[1] 

机构地区：[1]天津科技大学,天津300222

出　　处：《电力电子技术》2007年第11期18-19,共2页Power Electronics

基　　金：天津科技大学引进人才科研启动基金资助项目(20070429)~~

摘　　要：提出了一种新颖的不对称半桥式准谐振变换器,利用次级添加电容与变压器漏抗谐振的方法实现零电流开关,并详细讨论了软开关的条件。仿真和实验证明,该变换器具有软开关范围大、效率高的特点,验证了该方案的可行性和有效性。A novel quasi-resonant converter with asymmetrical half-bridge topology is presented.It realizes zero current switching through the resonant of the additive capacitor in the secondary side and the leakage inductance of the transformer.The condition of soft switching is discussed .The simulation and experiment are done to verify its feasibility and validity, and the results show that the converter owns the advantages of wide soft switching range and high efficiency.

关 键 词：变换器 谐振/不对称半桥 零电流开关 准谐振变换器 

分 类 号：TM46[电气工程—电器]