A novel soft-switching bridgeless power factor correction circuit

Author

Tsai, Hsien-Yi ; Hsia, Tsun-Hsiao ; Chen, Dan

Author_Institution

Nat. Taiwan Univ., Taipei

fYear

2007

fDate

2-5 Sept. 2007

Firstpage

1

Lastpage

10

Abstract

A novel zero-voltage-transition (ZVT) bridgeless power factor correction circuit (PFC) was proposed. An auxiliary circuit, consisting of a resonant inductor, two blocking diodes, one wheeling diode and an assist MOSFET, was used to reduce the turn-on switching loss of the two main switches of the bridgeless PFC circuit. Soft commutation of the main switches is achieved without imposing additional voltage stress on the main switches. Feedback gate-drive signals were obtained by using existing converter IC controller. In this paper, a detailed description of the operation of the proposed circuit will be given. Based on the analysis, guidelines for the component selection are presented. A prototype of 100-kHz, 600-W, universal-line PFC bridgeless circuit was built to verify the proposed scheme.

Keywords

MOSFET; diodes; power factor correction; power inductors; zero voltage switching; MOSFET; auxiliary circuit; blocking diodes; frequency 100 kHz; integrated circuit controller; power 600 W; power factor correction circuit; resonant inductor; soft commutation; soft-witching; voltage stress; zero voltage transition; Diodes; Inductors; MOSFET circuits; Power factor correction; RLC circuits; Resonance; Switches; Switching circuits; Switching loss; Voltage; Power Factor Correction; Soft-Switching; ZVS converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2007 European Conference on

Conference_Location

Aalborg

Print_ISBN

978-92-75815-10-8

Electronic_ISBN

978-92-75815-10-8

Type

conf

DOI

10.1109/EPE.2007.4417271

Filename

4417271