摘要
针对同步整流Boost变换器的效率问题,提出一种同步整流Boost软开关拓扑。在辅助电路的帮助下,实现了主开关管的零电压通断和辅助开关管的零电流通断,显著改善了因开关管导致的变换器损耗严重的问题,使变换器的效率得到了有效提高。详细分析了所提变换器的工作原理并对主要参数的选取和变换器的特性进行了讨论,最后通过Pspice仿真实验对理论分析进行了验证。
In allusion to the efficiency problem of synchronous rectification Boost converter,a Boost soft switching topolo-gy of synchronous rectification is proposed.The zero-voltage on-off of the main switching tube and the zero-current on-off of the auxiliary switching tube are achieved with the help of auxiliary circuit,by which the converter severe loss caused by switching tube and the efficiency of converter are significantly improved.The working principle of the converter proposed in this paper is analyzed in detail,and the selection of main parameters and the characteristics of the converter are discussed.The conclusion of the theoretical analysis is verified in Pspice simulation experiments.
作者
苏淑靖
袁财源
王少斌
switchingSU Shujing;YUAN Caiyuan;WANG Shaobin(National Key Laboratory of the Electronic Measurement Technology,North University of China,Taiyuan 030051,China)
出处
《现代电子技术》
北大核心
2019年第16期122-125,130,共5页
Modern Electronics Technique
基金
国家自然科学基金资助项目(51875534)~~
关键词
同步整流
BOOST变换器
软开关
参数选取
原理分析
仿真验证
synchronous rectification
Boost converter
soft switching
parameter selection
principle analysis
simulationverification
