Title :
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
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;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.703164
