A Soft-Switching Single-Stage Converter with Buck-Boost PFC Based on an Asymmetrical Half-Bridge Topology

Author

Hung, J.-C. ; Wu, T.-F. ; Lai, Y.-S. ; Chen, Y.-M.

Author_Institution

Dept. of Electr. Eng., Nat. Chung Chen Univ., Ming-Hsiung

fYear

2005

fDate

16-16 June 2005

Firstpage

1959

Lastpage

1965

Abstract

This paper presents a soft switching single-stage converter with a buck-boost type of power factor corrector (PFC) based on an asymmetrical half-bridge topology. The proposed converter is formed from a buck-boost PFC and an asymmetrical half-bridge converter. The converter has the features of constant frequency operation, soft switching and low voltage stress imposed on the active switches. Moreover, it can achieve high power factor, high efficiency, low switching losses and low component counts, which make converter applications at medium power levels feasible. In the paper, a 150 W converter with the proposed topology has been designed and implemented to verify the discussed features

Keywords

bridge circuits; network topology; power factor correction; switching convertors; 150 W; asymmetrical half-bridge topology; buck-boost PFC; power factor corrector; soft-switching single-stage converter; switching losses; voltage stress; Capacitors; Circuit topology; Diodes; Inductors; Low voltage; Reactive power; Stress; Switches; Switching converters; Switching loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2005. PESC '05. IEEE 36th

Conference_Location

Recife

Print_ISBN

0-7803-9033-4

Type

conf

DOI

10.1109/PESC.2005.1581900

Filename

1581900