NDLI: A series-input forward converter with shared RCD cell for high-reliability and wide input voltage range applications

Content Provider	IEEE Xplore Digital Library
Author	Xiaoqing Qin Haibing Hu Hongfei Wu Yan Xing Xudong Ma
Copyright Year	2013
Description	Author affiliation: Sch. of Autom., Southeast Univ., Nanjing, China (Xudong Ma) \|\| Jiangsu Key Lab. of New Energy Generation & Power Conv., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China (Xiaoqing Qin; Haibing Hu; Hongfei Wu; Yan Xing)
Abstract	An interleaved forward converter, adopting the series-input series-rectifier structure with a shared RCD reset branch, is proposed in this paper. Only one RCD branch is shared by two forward cells as a common transformer reset circuit. The duty ratio of each forward cell can exceed 50%, as a result, the effective duty ratio of the two cells can be more than 100%, which makes the proposed converter suitable for wide-voltage-range application. Compared with the conventional RCD reset single switch forward converter, it maintains the merits of low voltage stress on the main switches, high efficiency because only part of the magnetizing power is dissipated by the reset resistor, and the voltage across the reset capacitor is lower as well. All these features make the proposed converter promising for wide-input-voltage applications with high reliability, high efficiency and a simple structure. Operation principles and characteristics are given in detail and verified with a 200W prototype.
Starting Page	154
Ending Page	158
File Size	1232833
Page Count	5
File Format	PDF
ISBN	9781479903368
DOI	10.1109/ECCE.2013.6646694
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetomechanical effects Switches Reliability Clamps Magnetic switching Demagnetization Stress
Content Type	Text
Resource Type	Article

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