High Efficiency Current-Doubler Rectifier with Low Output Current Ripple and High Step-Down Voltage Ratio

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题名:	High Efficiency Current-Doubler Rectifier with Low Output Current Ripple and High Step-Down Voltage Ratio
作者:	蔡政道
贡献者:	電機工程(學)系
日期:	2012-03
上传时间:	2018-01-07 10:18:40 (UTC+8)
摘要:	This paper presents a current-doubler rectifier with low output current ripple and high step-down voltage ratio. In the proposed rectifier, two extra inductors are introduced to extend the duty ratio of the switches, which in turn reduces the peak current through the isolation transformer as well as the output current ripple; two extra diodes are used to provide discharge paths for the two extra inductors. To highlight the merits of the proposed rectifier, its performance indexes, such as voltage gain function, secondary winding peak current of the isolation transformer, and output current ripple, are analyzed and compared with the conventional current-doubler rectifier. In this paper, a zero-voltage-switching phase-shift full-bridge converter with the proposed rectifier with an input voltage of 400 V, output voltage of 12 V, and full load power of 500 W has been implemented and verified, and experimental results have shown that 90% conversion efficiency could be achieved at full load. © 2013 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
關聯:	IEEJ Transactions on Electrical and Electronic Engineering
显示于类别:	[電機工程系(所)] 【電機工程系所】期刊論文

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