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Current-Fed Resonant Full-Bridge Boost DC/AC/DC Converter

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2 Author(s)
Jalbrzykowski, S. ; Bialystok Tech. Univ., Bialystok ; Citko, T.

This paper presents a current-fed full-bridge boost DC/AC/DC converter with transformer isolation operating without switching power dissipation. The output voltage is regulated by DC/AC converter control frequency changes with a constant turn-off time of transistors. The proposed converter is devoid of parasitic oscillations, as all of the parasitic capacitances and inductances are included in a resonant tank circuit. In this paper, the system operation is first explained, then a mathematical description that is useful for its design is provided, and finally, a report on the implementation of a laboratory prototype with 1.4-kW power is presented.

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Industrial Electronics, IEEE Transactions on  (Volume:55 ,  Issue: 3 )