带饱和电感的移相全桥零电压PWM变换器研究  

Study of a PS-FB-ZVS-PWM Converter with a Saturable Inductor

作　　者：封俊宝[1] 王金梅[1] 贾周[1] 

机构地区：[1]宁夏大学物理电气信息工程学院,银川750021

出　　处：《电源世界》2010年第1期21-24,共4页The World of Power Supply

基　　金：宁夏回族自治区自然基金项目-基于PFC和软开关的大功率开关电源研究(编号:NZ0724)

摘　　要：和传统电路相比,带饱和电感的移相全桥零电压开关变换器可以在很宽的范围内实现零电流关断,减少占空比的丢失。本文在分析了其工作原理的基础上,对几个重要参数进行了讨论,设计了一台380V输入,38V/3.04kW输出的电源,并进行了MATLAB/SIMULINK仿真。仿真结果表明该电路具有开关损耗低、工作频率恒定、可靠性高等优点。The PS-FB-ZVS-PWM converter with a saturable inductor has advantages such as wide ZVS load range and low duty cycle loss comparing to the traditional PS-FB-ZVS-PWM.Several important parameters are discussed based on the analysis of the converter working principle.And then,a 380v AC input,38V/3. 04kW output power supply is dessigned.The simulative result based on the MATLAB/SIMULINK proved the converter has advantages of low switch losses,contant frequent operation and high reliablity.

关 键 词：饱和电感 移相全桥零电压PWM 变换器 

分 类 号：TN86[电子电信—信息与通信工程]