Design considerations and performance evaluations of synchronous rectification in flyback converters

被引：85

作者：

Zhang, MT ^{[1
]}

Jovanovic, MM

Lee, FCY

机构：

[1] Intel Corp, Platform Architecture Lab, Hillsboro, OR 97124 USA

[2] Delta Power Elect Lab Inc, Blacksburg, VA 24060 USA

[3] Virginia Polytech Inst & State Univ, Bradley Dept Elect Engn, Virginia Power Elect Ctr, Blacksburg, VA 24061 USA

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 1998年 / 13卷 / 03期

关键词：

efficiency; flyback converter; synchronous rectification;

D O I：

10.1109/63.668117

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：

Design tradeoffs and performance comparisons of various implementations of the flyback converter with a synchronous rectifier (SR) are presented. Specifically, the merits and limitations of the constant-frequency (CF) continuous-conduction mode (CCM), CF discontinuous-conduction mode (DCM), variable-frequency (VF) DCM, and zero-voltage-switched (ZVS) DCM flyback converters with SR's are The theoretical efficiency improvements of the discussed synchronous rectification approaches relative to Schottky diode implementations are derived. Finally, theoretical results are verified on an experimental universal-input off-line 15-V/36-W flyback prototype.

引用

页码：538 / 546

页数：9

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