A novel high-efficiency flyback power-factor-correction circuit with regenerative clamping and soft switching

Author

Siu, Kam-Wah ; Lee, Yim-Shu

Author_Institution

Dept. of Electron. & Inf. Eng., Hong Kong Polytecg. Univ., Kowloon, Hong Kong

Volume

47

Issue

3

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

350

Lastpage

356

Abstract

Although most power factor correction (PFC) circuits use the boost topology, the flyback topology does have the advantages of input-output isolation, inrush current limiting and voltage step-down capability. In this paper, the problems associated with flyback PFC circuits are identified. These problems are solved by using a novel regenerative clamping circuit. The circuit topology, analysis, design considerations and experimental results of the new flyback PFC circuit are presented

Keywords

DC-DC power convertors; power factor correction; switching circuits; design considerations; flyback PFC circuits; flyback topology; input-output isolation; inrush current limiting; power-factor-correction circuit; regenerative clamping; soft switching; voltage step-down capability; Circuit topology; Clamps; Inductance; Magnetic circuits; Power factor correction; Power transformers; Semiconductor diodes; Switches; Switching circuits; Switching converters;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.841917

Filename

841917