A new sepic-flyback converter

Author

Soo-Seok Kirn ; Mun, Seung-Pil ; Jin-Tae Kirn ; Jang, Su-Jh ; Won, Chung-Yuen

Author_Institution

Dept. of Electr. Eng., Seoul Nat. Univ. of Technol., South Korea

Volume

2

fYear

2004

fDate

2-6 Nov. 2004

Firstpage

1004

Abstract

In this paper, a new sepic-flyback converter has been proposed, which is suitable for buck-boost topology. The proposed converter is superposition of sepic converter mode and flyback converter mode. Not only sepic mode output but also flyback mode output can be fully regulated by constant frequency PWM control. Merging sepic and flyback topology can share the transformer and power MOSFET. A new converter has outstanding advantages over the conventional dc-dc converters with respect to high efficiency, high power density, and component utilization. The operation principle of the proposed converter is described and verified by simulation and experimental result. Also this paper presents novel circuit and simulation result of new active sepic-flyback converter.

Keywords

PWM power convertors; power MOSFET; transformers; buck-boost topology; constant frequency PWM control; flyback converter mode; power MOSFET; sepic converter mode; sepic-flyback converter; transformer; Circuit topology; Frequency; Inductors; MOSFET circuits; Merging; Pulse width modulation; Switches; Switching circuits; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, 2004. IECON 2004. 30th Annual Conference of IEEE

Print_ISBN

0-7803-8730-9

Type

conf

DOI

10.1109/IECON.2004.1431711

Filename

1431711