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A Comparative Study of Simple Ac-Dc PWM Full-Bridge Current-Fed and Voltage-Fed Converters  

Moschopoulos Gerry (Dept. of Electrical and Computer Eng., University of Western Ontario)
Shah Jayesh (Dept. of Electrical and Computer Eng., University of Western Ontario)
Publication Information
Journal of Power Electronics / v.4, no.4, 2004 , pp. 246-255 More about this Journal
Abstract
Ac-dc PWM single-stage converters that integrate the PFC and dc-dc conversion functions in a single switching converter have been proposed to try to minimize the cost and complexity associated with implementing two separate and independent switch-mode converters. In this paper, two simple ac-dc single-stage PWM full-bridge converters are considered - one current-fed, the other voltage-fed. The operation of both converters is explained and their properties are noted. Experimental results obtained from simple lab prototypes of both converters are presented, then compared and discussed.
Keywords
single-stage converters; ac-dc power conversion; power factor correction;
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