移相全桥ZVS变换器的研究  

Research on Phase-Shifted Full-Bridge ZVS Converter

作　　者：马文辉[1] 何志琴[1] 黄玉芳[1] 

机构地区：[1]贵州大学电气工程学院,贵州贵阳550025

出　　处：《贵州大学学报（自然科学版）》2017年第2期59-63,共5页Journal of Guizhou University:Natural Sciences

基　　金：贵州省自然科学基金项目(黔科合J字[2012]2158);贵州省教育厅教改项目(800168144401)

摘　　要：软开关变换器的建模,关键在于推导有效占空比的表达式,它由功率开关管占空比、开关频率、电感电流共同决定,而且直接决定了模型的精度,能够表征软开关变换器工作特性。本文着重分析移相全桥ZVS-PWM DC/DC变换器的工作原理,进行了有效占空比的推导、建立了仿真模型并给出了主要电路参数设计原则,验证了方法的有效性。For the soft switching converter modeling, the key lies in the derivation of effective duty ratio expres- sion, it consists of power switch tube for air ratio, the switching frequency, inductor current joint decision, and directly determines the accuracy of the model, to characterization of soft switching converter operating characteris- tic parameters. This paper focuses on the analysis of the working principle of the phase shifted full bridge PWM DC/DC ZVS converter, and the derivation of the effective duty cycle, the design of the main circuit parameters and the verification of the simulation model.

关 键 词：移相全桥 ZVS 有效占空比 

分 类 号：TM46[电气工程—电器]