Title :
A highly efficient buck converter with double-anti-crossover synchronous rectification using a newly developed control IC
Author :
Tsukamoto, Kazuo ; Saka, Tatsuo ; Yachi, Toshiaki
Author_Institution :
NTT Building Technol. Inst., Tokyo, Japan
Abstract :
A highly efficient buck power converter is described that uses a newly developed control IC. The control IC has a new gate driving scheme that utilizes double-anti-crossover control for synchronous rectification. It reduces loss in power MOSFETs by restraining pass-through current. A maximum efficiency of 93% is obtained in the buck power converter, whose output voltage is 3.3 volts
Keywords :
AC-DC power convertors; DC-DC power convertors; power MOSFET; power integrated circuits; power semiconductor switches; rectifying circuits; switching circuits; 3.3 V; 93 percent; buck power converter; control IC; double-anti-crossover control; output voltage; pass-through current restraint; power MOSFETs; synchronous rectification; Buck converters; Circuits; Control systems; Degradation; MOSFETs; Switches; Switching converters; Switching frequency; Telephony; Voltage;
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.1998.703165
