摘要
所研究的移相全桥软开关变换器带饱和电感的电路结构简单,能在很宽的范围实现滞后臂的零电流关断即ZCS,减小了占空比的丢失,提高了高频变压器的利用率。讨论了饱和电感的特性,详细分析了该变换器的工作模态,给出了几个关键参数的设计原则。以此为基础试制了一台高频变换器样机,实验结果表明所研制的变换器具有较高的效率和较低的损耗,性能良好。
A topology of phase-shift full-bridge soft-switching converter with saturable inductance is presented .It＇s structure is simple . Zero-voltage turn-on can be realized in lagged-leg with a wide load range . The lost of duty ratio can be reduced and utilizing efficiency of transformer can be improved.The characteristic of saturable inductance is discussed. The operating modes of the converter are analyzed in detail. The design principle of some key parameters is given. A high frequency converter prototype is made. Experimental results show the converter has high efficiency, low loss and a good performance.
出处
《微计算机信息》
北大核心
2006年第10Z期125-127,225,共4页
Control & Automation
基金
国家自然科学基金重点项目--新型高频中小功率逆变电源的控制技术和拓扑技术研究(项目批准号:50237020)的资助
关键词
移相全桥
软开关
ZVZCS
饱和电感
phase-shifted full bridge（PS-FB）,sofl-switching,ZVZCS,Saturable Inductance
