不对称半桥变换器的分析与设计  

Analysis and Design of Asymmetrical Half-Bridge Converter

作　　者：杨黎[1] 蒋启龙[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《电源技术应用》2008年第9期29-33,共5页Power Supply Technologles and Applications

摘　　要：不对称半桥工作在软开关模式可以减小开关损耗,提高电源的效率。本文分析了不对称半桥的工作原理和实现零电压开关的条件,以一台咖啡机电源为例来说明电源的设计过程。最后,实验结果证明电源在零电压开通。An asymmetrical half-bridge operating in soft switching mode can reduce switching power loss and improve the efficiency of power supply.This paper analyzes the operation principle of an asymmetrical half-bridge and the requirement of realizing ZVS in operation.An example is presented to explain the design procedure from a coffee power.Finally,the experimental results show that the power turns on at zero voltage.

关 键 词：不对称半桥 零电压开关 软开关 

分 类 号：TM46[电气工程—电器]