Title :
A new soft-commutated full-bridge DC-DC convertor with low conduction loss
Author :
Uturbey, Wadaed ; Barbi, Ivo
Author_Institution :
Power Electron. Inst., Federal Univ. of Santa Catarina, Florianopolis, Brazil
Abstract :
This paper introduces a new power converter circuit intended to be used in the design of high power supplies, in the place of the well-known full-bridge zero-voltage-switching pulse-width-modulated (FB-ZVS-PWM) converter. Besides operating with soft commutation, and modulated by pulse width at constant frequency, this new converter subjects the power transistor to lower RMS current stress than the FB-ZVS-PWM one. Circuit operation analysis, design procedure and example along with experimental results are presented in this paper
Keywords :
DC-DC power convertors; PWM power convertors; bridge circuits; commutation; losses; power transistors; 100 kHz; 240 W; 300 V; RMS current stress; circuit design procedure; circuit operation analysis; constant frequency; full-bridge DC-DC convertor; high power supplies design; low conduction loss; power converter circuit; power transistor; pulse width modulation; soft-commutated converter; Capacitors; Circuits; Inductors; Magnetic resonance; Magnetic separation; Pulse modulation; Pulse width modulation converters; Pulsed power supplies; Virtual colonoscopy; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-2730-6
DOI :
10.1109/PESC.1995.474922
