A novel single-stage half-bridge AC-DC converter with high power factor

Author

Seok, Kyoung-Wook ; Kwon, Bong-Hwan

Author_Institution

Dept. of Electron. & Electr. Eng., Pohang Inst. of Sci. & Technol., South Korea

Volume

48

Issue

6

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

1219

Lastpage

1225

Abstract

A new single-stage AC-DC power converter based on a half-bridge converter suitable for low-power applications is proposed. The proposed converter offers high power factor and direct conversion from the line voltage to an isolated DC output voltage. High power factor is achieved by adding a resonant circuit between the rectifying diodes and half-bridge leg. For soft switching, a half-bridge series-loaded resonant converter is adopted as a DC-DC converter part. A prototype is built and tested to show the validity of the proposed converter

Keywords

AC-DC power convertors; bridge circuits; power factor correction; rectifying circuits; resonant power convertors; switching circuits; half-bridge leg; high power factor; isolated DC output voltage; low-power applications; rectifying diodes; resonant circuit; series-loaded resonant converter; single-stage half-bridge AC-DC power converter; AC-DC power converters; Analog-digital conversion; DC-DC power converters; Diodes; Leg; RLC circuits; Reactive power; Resonance; Switching converters; Voltage;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.969402

Filename

969402