NDLI: Wide Range Dual Switch Forward-Flyback Converter with Symmetrical RCD Clamp

Content Provider	IEEE Xplore Digital Library
Author	Yingdong Wei Xiehua Wu Yilei Gu Hao Ma
Copyright Year	2005
Description	Author affiliation: Coll. of Electr. Eng., Zhejiang Univ., Hangzhou (Yingdong Wei; Xiehua Wu; Yilei Gu; Hao Ma)
Abstract	This paper proposes a wide range dual switch forward-flyback with current-doubler rectifier (CDR) converter which adopts staggered clamp structure with two symmetrical RCD type circuit. It overcomes the shortcoming that duty ratio cannot be more than 50% of conventional dual switch forward converters. Compared with the conventional single switch active-clamp forward-flyback converter with CDR, it maintains the advantages of wide voltage input and high efficiency, moreover, reduces the voltage stress of main switch to half of the former in a relative low cost and simple structure. The improved symmetrical RCD clamp structure are also recommended to be used in dual switch forward converter for high and wide range voltage input application, which is a kind of slight dissipative type clamp circuit for it enhances the magnetic reset efficiency greatly compared with conventional RCD clamp circuit. The principle of operation and characteristics of the novel converter are verified on a 200 V-400 V input and 9.5 V/15 A output experimental prototype
Starting Page	420
Ending Page	424
File Size	670266
Page Count	5
File Format	PDF
ISBN	0780390334
DOI	10.1109/PESC.2005.1581658
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-16
Publisher Place	Brazil
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switches Switching converters Clamps Voltage Switching circuits Magnetic circuits Rectifiers Stress Costs Magnetic switching
Content Type	Text
Resource Type	Article

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