Title :
Synchronous rectifier circuit with DC biasing transformer
Author :
Koda, Kensuke ; Kuwabara, Kohji ; Miyachika, Eiji
Author_Institution :
Fujitsu Labs. Ltd., Kawasaki, Japan
Abstract :
This paper introduces a new method of MOSFET gate-drive for self-synchronized rectifier circuits with DC biasing transformers. The voltage of the secondary winding is always rectangular, thus the commutation MOSFET gate can be fully-driven during the off-time of the primary main switch. Using this method, a conversion efficiency of 91% at an output power of 50 W (5 V, 10 A) can be obtained
Keywords :
AC-DC power convertors; commutation; field effect transistor switches; power MOSFET; power field effect transistors; power semiconductor switches; power transformers; rectifying circuits; switching circuits; transformer windings; 10 A; 5 V; 50 W; 91 percent; DC biasing transformer; MOSFET gate-drive; commutation MOSFET gate; conversion efficiency; output power; secondary winding voltage; synchronous rectifier circuit; Circuits; Diodes; Equations; Large scale integration; Power generation; Power supplies; Rectifiers; Switches; Voltage; Zirconium;
Conference_Titel :
Telecommunications Energy Conference, 1997. INTELEC 97., 19th International
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-3996-7
DOI :
10.1109/INTLEC.1997.645863
