Buck/boost Dc-Dc converter with simple auxiliary snubber and complete soft switching in whole operating region

Author

Pavlovsky, M. ; Kawamura, A. ; Guidi, G.

Author_Institution

Dept. of Electr. & Comput. Eng., Yokohama Nat. Univ., Yokohama, Japan

fYear

2012

fDate

15-20 Sept. 2012

Firstpage

11

Lastpage

18

Abstract

The paper proposes a buck/boost dc-dc converter topology based on a simple auxiliary snubber. The snubber is simple yet effective in reducing the switching losses. In addition to the conventional active switch loss reduction, the snubber can participate in suppression of output diode reverse recovery through synchronous rectifications and it can also be used to provide complete soft switching in the whole operating region through extended conduction of synchronous rectifier. Experimental efficiencies in the range of 98.5 % show that the proposed circuit is highly capable while remaining simple.

Keywords

DC-DC power convertors; rectifying circuits; switching convertors; active switch loss reduction; buck-boost DC-DC converter; complete soft switching; efficiency 98.5 percent; output diode reverse recovery; simple auxiliary snubber; synchronous rectifier; Capacitors; Inductors; Rectifiers; Snubbers; Switches; Topology; Turning;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2012 IEEE

Conference_Location

Raleigh, NC

Print_ISBN

978-1-4673-0802-1

Electronic_ISBN

978-1-4673-0801-4

Type

conf

DOI

10.1109/ECCE.2012.6342418

Filename

6342418