Digital Implementation of Driving Scheme for Synchronous Rectification in LLC Resonant Converter

被引：0
|
作者：
Feng, Weiyi [1 ]
Huang, Daocheng [1 ]
Mattavelli, Paolo [1 ]
Fu, Dianbo [1 ]
Lee, Fred C. [1 ]
机构：
[1] Virginia Polytech Inst & State Univ, Ctr Power Elect Syst, Blacksburg, VA 24061 USA
来源：
2010 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION | 2010年
关键词：
Digital control; Synchronous rectification; LLC resonant converter;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A digital implementation of synchronous rectification (SR) driving scheme for LLC resonant converter is proposed in this paper. Compared with analog ones, digital implementation enables more intelligent and precise SR control, improving converter efficiency. In the proposed SR driving scheme, the drain to source voltage of synchronous rectifier on the secondary side is sensed, so that the paralleled body diode conduction is detected. The SR turn-off time is digitally tuned based on the body diode conduction information. For rapid prototyping purposes, the digital tuning system is realized in Cyclone III FPGA.
引用
收藏
页码：256 / 263
页数：8
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