Title :
A ZVS-PWM full-bridge boost converter for applications needing high step-up voltage ratio
Author :
Baei, Mohammadjavad ; Moschopoulos, Gerry
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON, Canada
Abstract :
Pulse-width modulated (PWM) full-bridge boost converters are used in applications where the output voltage is considerably higher than the input voltage. Zero-voltage-switching (ZVS) is typically implemented in these converters. A new ZVS-PWM full-bridge converter is proposed in this paper. The proposed converter does not have any of the drawbacks that other converters of this type have, including a complicated auxiliary circuit, increased current stresses in the main power switches and load dependent ZVS operation. In this paper, the operation of the new converter, its steady-state characteristics, and its design are explained and examined. The feasibility of the converter is confirmed with results that are obtained from an experimental prototype.
Keywords :
PWM power convertors; zero voltage switching; ZVS operation; ZVS-PWM full-bridge boost converter; auxiliary circuit; high step-up voltage ratio; pulse-width modulated full-bridge boost converters; steady-state characteristics; zero-voltage-switching; Bridge circuits; Capacitance; Capacitors; Inductors; Pulse width modulation; Switches; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4577-1215-9
Electronic_ISBN :
978-1-4577-1214-2
DOI :
10.1109/APEC.2012.6166129
