Title :
Innovative proposal of full-bridge phase-shift PWM DC-DC converter with ZVS and ZCS bridge legs using tapped inductor
Author :
Moisseev, Serguei ; Hamada, Satoshi ; Nakaoka, Mutsuo
Author_Institution :
Div. of Syst. Eng., Yamaguchi Univ., Japan
Abstract :
In this paper a novel high frequency step-up transformer linked full-bridge soft-switching phase-shift control scheme DC- DC power converter with ZVS and ZCS bridge legs is proposed. A tapped inductor filter is used in the presented soft-switching converter to achieve wide load variation range soft-switching PWM operation under constant frequency, to minimize circulating and idling currents. The principle of operation with steady-state circuit analysis for each operation mode is illustrated in the fullpaper. The practical effectiveness of the proposed soft-switching DC-DC power converter is verified by the experiment with 1 kW 100 kHz breadboard using power MOSFETs. The actual efficiency of 94-96% was obtained for the wide load variation range.
Keywords :
DC-DC power convertors; PWM power convertors; bridge circuits; inductors; phase shifters; power MOSFET; switching convertors; 1 kW; 100 kHz; 94 to 96 percent; PWM DC-DC converter; ZCS bridge; ZVS bridge; full-bridge soft-switching phase-shift control; load variation range; soft-switching converter; steady-state circuit analysis; step-up transformer; tapped inductor; Bridge circuits; DC-DC power converters; Frequency conversion; Inductors; Leg; Proposals; Pulse width modulation; Pulse width modulation converters; Zero current switching; Zero voltage switching;
Conference_Titel :
Telecommunications Energy Conference, 2003. INTELEC '03. The 25th International
Conference_Location :
Yokohama, Japan
Print_ISBN :
4-88552-196-3
