DocumentCode :
23691
Title :
Buck/Boost DC–DC Converter Topology With Soft Switching in the Whole Operating Region
Author :
Pavlovsky, Martin ; Guidi, Gabriele ; Kawamura, Atsuo
Author_Institution :
Yokohama Nat. Univ., Yokohama, Japan
Volume :
29
Issue :
2
fYear :
2014
fDate :
Feb. 2014
Firstpage :
851
Lastpage :
862
Abstract :
This paper proposes a buck/boost dc-dc converter topology based on the principle of auxiliary resonant commutated pole. The used snubber is fairly simple yet effective in reducing the switching losses. All active devices operate with soft switching, and switching noise is suppressed as much as possible. In addition to the conventional active switch loss reduction, the snubber participates in suppression of output diode reverse recovery. Moreover, complete soft switching in the whole operating region is achieved through controlled extended reverse conduction of synchronous rectifier. The topology was implemented in a 14 kW converter prototype operating at 62.5 kHz and tested with complete closed-loop control. Experimental efficiencies in the range of 98.5% show that the proposed circuit is highly capable while remaining sufficiently simple.
Keywords :
DC-DC power convertors; poles and towers; rectifying circuits; switching convertors; active switch loss reduction; auxiliary resonant commutated pole; buck-boost DC-DC converter topology; controlled extended reverse conduction; efficiency 98.5 percent; frequency 62.5 kHz; output diode reverse recovery suppression; power 14 kW; snubber; soft switching; switching noise; synchronous rectifier; Capacitors; Inductors; Snubbers; Soft switching; Switches; Switching circuits; Topology; Buck–boost topology; dc–dc converter; high-efficiency; soft switching;
fLanguage :
English
Journal_Title :
Power Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8993
Type :
jour
DOI :
10.1109/TPEL.2013.2258358
Filename :
6502730
Link To Document :
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