Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 52, Issue 1, Pages 228-235Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2004.841063
Keywords
capacitor; converter; inductor; phase-shift full-bridge (PSFB); transformer; zero-voltage-switching (ZVS)
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In this paper, a new zero-voltage-switching (ZVS) phase-shift full-bridge (PSFB) converter with low conduction losses is proposed. It is based on the PSFB converter with series-connected two transformers, which features wide ZVs ranges. By adding a capacitor, the proposed converter overcomes the disadvantage of the based converter, such as the high circulating energy. Furthermore, the turns ratio of the transformers can be increased as well. Therefore, high efficiency of the proposed converter can be achieved. Operational principles and experimental results for a 100-W (5 V, 20 A) prototype are presented to validate the proposed converter.
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