倍流整流半桥变换器同步整流驱动技术的研究  

Study of Synchronous Rectifier Driven in the Symmetrical Half-Bridge Converter with Current-Doubler Converter

作　　者：陈志宇[1] 陈为[1] 卢增艺[1] 

机构地区：[1]福州大学电气工程与自动化学院,福建福州350108

出　　处：《通信电源技术》2011年第3期14-17,共4页Telecom Power Technology

基　　金：国家自然科学基金资助项目(50877010);福建省自然科学基金资助项目(2009J01242)

摘　　要：针对由于倍流整流电路的开关死区时间,使得一般的自驱动无法提供同步整流管驱动信号,导致体二极管导通,从而降低同步整流效率的问题,研究了一种新型的倍流同步整流自驱动电路,介绍了其工作原理,分析了影响同步整流驱动信号质量的参数。仿真和实验验证了该方案的可行性。During the dead time of current-doubler converter,self-driven can＇t provide driven signal of synchronous rectifier MOSFET,that leads to body diode turn on,and as a consequence,the effciency is lowered.To solve this problem,This paper studies a new synchronous rectifier self-driven circuit,and introduces the working principle of topology,then analyzes the parameters,impacting the driven signal.The feasibility of current-doubler self-driven converter design has been verified through simulation and experiment.

关 键 词：倍流整流 同步整流 自驱动 

分 类 号：TM46[电气工程—电器]