带辅助网络的ZVS PWM全桥三电平直流变换器  

Three-Level Full-Bridge DC-DC Converter With Auxiliary Resonant Net

作　　者：郭庆吉[1] 吴江波[1] 王云丽[1] 

机构地区：[1]西安理工大学自动化与信息工程学院,陕西西安710000

出　　处：《通信电源技术》2006年第3期56-58,共3页Telecom Power Technology

摘　　要：提出了一种带辅助网络的ZVS PWM全桥三电平直流变换器,很好地解决了ZVS PWM移相全桥三电平变换器中滞后桥臂不容易实现软开关的问题,同时具有开关管电压应力小的特点。加入辅助网络后可以减小谐振电感,达到降低占空比丢失目的。文章分析了变换器的原理,最后通过对一个输出400V,10A的变换器的仿真进行了验证。This paper presents a three-level ZVS PWM full-bridge DC-BC converter with auxiliary resonant net , this converter deals with the difficult in three - level ZVS PWM converter that the lag bridge is difficult in realizing ZVS,at the same time has the merit that the voltage imposing the switch transistor is low. Adding the auxiliary resonant net can decrease the value of resonant inductor in order to decrease the duty loss. In this paper, the operating principle of the converter is discussed. The converter is verified on the simulation of a 400V, 10A converter.

关 键 词：全桥 变换器 三电平 

分 类 号：TM46[电气工程—电器]