The Active Clamp Sepic- Flyback Converter

Author

Kim, Soo-seok ; Choi, Dae-Kyu ; Jang, Su-Jin ; Lee, Tae-Won ; Won, Chung-Yuen

Author_Institution

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

fYear

2005

fDate

16-16 June 2005

Firstpage

1209

Lastpage

1212

Abstract

A high efficiency active clamp sepic-flyback converter is presented. 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, power MOSFET, and active clamp circuit. It 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

Keywords

PWM power convertors; power MOSFET; active clamp circuit; active clamp sepic-flyback converter; constant frequency PWM control; conventional dc-dc converters; flyback converter mode; power MOSFET; sepic converter mode; Circuit topology; Clamps; DC-DC power converters; Frequency; Power transformers; Pulse width modulation; Switches; Switching circuits; Switching converters; Voltage;

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.2005.1581783

Filename

1581783