An improved novel driving scheme of synchronous rectifiers for LLC resonant converters

被引：31

作者：

Fu, Dianbo ^{[1
]}

Liu, Ya ^{[1
]}

Lee, Fred C. ^{[1
]}

Xu, Ming ^{[1
]}

机构：

[1] Virginia Polytech Inst & State Univ, Ctr Power Elect Syst, Blacksburg, VA 24061 USA

来源：

APEC 2008: TWENTY-THIRD ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1-4 | 2008年

关键词：

D O I：

10.1109/APEC.2008.4522769

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes an improved novel synchronous rectifier (SR) driving scheme for resonant converters. It is very suitable for high frequency, high efficiency and high power density dc-dc resonant converters with SRs. An LLC resonant converter with proposed synchronous rectification is designed and analyzed. With proposed driving scheme, SR body diode conduction is almost reduced to none. The reverse recovery problem of SRs is eliminated. Both current and voltage stress are greatly decreased. Conduction loss and switching loss of SRs are considerably reduced. The experimental results show that the proposed LLC resonant converter with SR can achieve low stresses, high efficiency and high power density

引用

页码：510 / 516

页数：7

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