Title :
A low-current-stress ZVT PWM DC-DC converter using a saturable core reactor
Author :
Weng, DaFeng ; Yuvarajan, S.
Author_Institution :
Dept. of R&D, Matsushita Electr. Works, Woburn, MA, USA
Abstract :
The paper proposes a full-bridge DC-DC power converter which uses a saturable reactor, instead of two additional switches, to achieve zero-voltage-switching. A small capacitor connected in series with the transformer primary reduces the current on the switches in the lagging leg. The operating modes of the power converter are identified and the design equations are given. Experimental results obtained on a 200 W power converter are also presented
Keywords :
DC-DC power convertors; PWM power convertors; bipolar transistor switches; bridge circuits; field effect transistor switches; insulated gate bipolar transistors; power MOSFET; power bipolar transistors; power field effect transistors; power semiconductor switches; power transformers; saturable core reactors; switching circuits; 200 W; IGBT switch; MOSFET switch; design equations; full-bridge ZVS PWM DC-DC power converter; operating modes; saturable core reactor; transformer primary; zero voltage switching; Capacitors; DC-DC power converters; Inductors; Leg; Pulse width modulation; Pulse width modulation converters; Resonance; Switches; Switching converters; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616952
