Title :
Full bridge soft-switching phase-shifted PWM DC-DC converter using tapped inductor filter
Author :
Moisseev, Serguei ; Sato, Shinji ; Hamada, Satoshi ; Nakaoka, Mutsuo
Author_Institution :
Div. of Syst. Eng., Yamaguchi Univ., Japan
Abstract :
In this paper, a novel high frequency transformer linked full-bridge type soft-switching phase-shift PWM control scheme DC-DC power converter is presented. A tapped inductor filter is implemented in the proposed soft-switching converter topology to achieve wide load variation range soft-switching PWM constant frequency operation of the DC-DC converter, to minimize circulating current. The presented converter operates with ZVS for leading bridge leg active power switches due to lossless snubber capacitors, and ZCS for lagging bridge leg active power switches with the aid of the high frequency transformer parasitic leakage inductance component and tapped inductor filter. The effectiveness of the proposed soft-switching DC-DC converter is verified in experiment with 2 kW 100 kHz breadboard setup using IGBTs. Actual efficiency of 94% is obtained for the wide load variation range.
Keywords :
DC-DC power convertors; PWM power convertors; bridge circuits; filters; high-frequency transformers; insulated gate bipolar transistors; snubbers; switched mode power supplies; switching convertors; 100 kHz; 2 kW; 94 percent; IGBTs; ZCS bridge leg; ZVS bridge leg; breadboard setup; circulating current minimization; constant frequency operation; full bridge soft-switching; high frequency transformer link; leakage inductance; phase-shifted PWM DC-DC converter; snubber capacitor; tapped inductor filter; wide load variation; Active filters; Bridges; DC-DC power converters; Frequency conversion; Inductors; Leg; Load management; Pulse width modulation; Pulse width modulation converters; Topology;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1217731
