基于UC3875的复合式全桥三电平变换器的研究  

Research on Hybrid Full-Bridge Three-Level Converter Based on UC3875

作　　者：王艳玲[1] 盛东亮[2] 李晓帆[1] 

机构地区：[1]华中科技大学,湖北武汉430074 [2]中国矿业大学(北京),北京100083

出　　处：《通信电源技术》2007年第6期1-4,共4页Telecom Power Technology

摘　　要：文中研究了一种基于UC3875的复合式全桥三电平变换器。该变换器可以降低开关管的电压应力,利用开关管的寄生电容与变压器的漏感在较宽的负载范围内实现ZVS,在减小输出滤波器的容量和体积的同时,有效地提高了效率。对该变换器进行了仿真分析并通过一台600W的原理样机进行验证,给出了实验结果。A hybrid full- bridge three - level converter based on UC3875 is studied in this paper which could reduce switch voltage stress, actualize ZVS in a wide range of load by utilizing parasitic capacitance and leakage inductance of the transformer, decrease the capacity and size of the output filter, and effectively raise its efficiency as well. The principle and characteristics of the converter are well analyzed by simulation software and verified through a 600 W experimental prototype. The experimental results are given in the end.

关 键 词：复合式 变换器 三电平 零电压开关 

分 类 号：TM46[电气工程—电器]