Active clamped ZVS forward converter with soft-switched synchronous rectifier for maximum efficiency operation

Author

Açik, A. ; ÇADIRCI, I.

Author_Institution

Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Ankara, Turkey

Volume

2

fYear

1998

fDate

17-22 May 1998

Firstpage

1237

Abstract

An active-clamped, zero-voltage switched forward power converter equipped with a soft-switched synchronous rectifier is designed and implemented for low output voltage applications where maximized efficiency is of utmost importance. The power converter efficiency is maximized due to the soft-switching of the main active clamp and the synchronous rectifier MOSFET switches. Experimental results are presented for a power converter with a DC input voltage of 48 V, an output voltage of 5 V and a DC electronic load up to 10 A. The measured efficiency was 92% for an output power of 50 W

Keywords

AC-DC power convertors; DC-DC power convertors; PWM power convertors; power MOSFET; power semiconductor switches; rectifying circuits; switching circuits; 10 A; 48 V; 5 V; 50 W; 92 percent; DC electronic load; MOSFET switches; active clamped ZVS forward power converter; low output voltage applications; maximum efficiency operation; soft-switched synchronous rectifier; Clamps; Low voltage; MOSFET circuits; Power MOSFET; Power generation; Power measurement; Rectifiers; Switches; Switching converters; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.703164

Filename

703164