High-Frequency High-Efficiency CLL Resonant Converters With Synchronous Rectifiers

被引：60

作者：

Huang, Daocheng ^{[1
]}

Fu, Dianbo ^{[2
]}

Lee, Fred C. ^{[1
]}

Kong, Pengju ^{[1
]}

机构：

[1] Virginia Polytech Inst & State Univ, Virginia Tech, Blacksburg, VA 24061 USA

[2] Huawei Technol, Plano, TX 75075 USA

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2011年 / 58卷 / 08期

关键词：

Design methodology; driving scheme; high efficiency; high frequency; high power density; resonant converter; synchronous rectifier; transformer;

D O I：

10.1109/TIE.2010.2093474

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper proposes a CLL resonant dc-dc converter as an option for offline applications. This topology can achieve zero-voltage switching from zero load to a full load and zero-current switching for output rectifiers and makes the implementation of a secondary rectifier easy. This paper also presents a novel methodology for designing CLL resonant converters based on efficiency and holdup time requirements. An optimal transformer structure is proposed, which uses a current-type synchronous rectifier (SR) drive scheme. An 800-kHz 250-W CLL resonant converter prototype is built to verify the proposed circuit, design method, transformer structure, and SR drive scheme.

引用

页码：3461 / 3470

页数：10

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