Title :
ZVS-PWM half-bridge converter using active current clamping with an auxiliary winding of a transformer
Author :
Yoshida, Koji ; Maeoka, Tatsuo ; Ishii, Takuya ; Ninomiya, Tamotsu
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
Abstract :
A ZVS-PWM half-bridge converter which achieves active current clamping by using an auxiliary winding of a transformer is presented and evaluated in detail. This converter does not need the complicated drive circuit for the active-clamping switches. In the experiment, high efficiency of 86.5% is achieved for the low output voltage of 3.3 V, an output current of 30 A, and an input-voltage range of 300 V to 400 V at the switching frequency of 200 kHz
Keywords :
DC-DC power convertors; PWM power convertors; bridge circuits; switching circuits; transformer windings; 200 kHz; 3.3 V; 30 A; 300 to 400 V; 86.5 percent; DC/DC converters; ZVS-PWM half-bridge converter; active current clamping; transformer auxiliary winding; zero voltage switching; Circuit noise; Clamps; DC-DC power converters; Inductance; Low voltage; Magnetic switching; Switches; Switching circuits; 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.1998.703116
