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Analysis and design of the two-transformer asymmetrical half-bridge converter

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3 Author(s)
Yi-Hsin Leu ; Delta Electron., Inc., Taiwan ; Tsou-Min Chen ; Chen, Chern-Lin

Two-transformer asymmetrical half-bridge converter allows duty cycle larger than 50% and hence has the merits of lower output rectifier stress and wider input voltage range. In this paper, detailed circuit operations of the converter are analyzed. A practical design procedure is then developed. Zero voltage switching (ZVS) conditions of power switches are quantitatively investigated. Experimental results obtained from a 24 V/10 A prototype operating at 200 kHz are presented.

Published in:

Industrial Electronics Society, 2005. IECON 2005. 31st Annual Conference of IEEE

Date of Conference:

6-10 Nov. 2005