Analysis and design of phase shift full bridge converter with series-connected two transformers

Analysis and design of phase shift full bridge converter with series-connected two transformers

A new phase shift full bridge (PSFB) converter with series-connected two transformers is proposed. The proposed converter shows wide zero voltage switching (ZVS) ranges and no output inductor is needed since each transformer individually acts as an inductor or a transformer during different times of...

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Veröffentlicht in:IEEE transactions on power electronics 2004-03, Vol.19 (2), p.411-419, Article 411
Hauptverfasser: Koo, G.-B., Moon, G.-W., Youn, M.-J.
Format: Artikel
Sprache:eng
Schlagworte:
Bridge circuits
Converters
Design engineering
Inductors
Leg
Magnetic flux
Mathematical analysis
Phase shift
Power supply
Switches
Switching
Switching converters
Telecommunication switching
Telecommunications
Topology
Transformers
Voltage
Zero voltage switching
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Beschreibung
Zusammenfassung:A new phase shift full bridge (PSFB) converter with series-connected two transformers is proposed. The proposed converter shows wide zero voltage switching (ZVS) ranges and no output inductor is needed since each transformer individually acts as an inductor or a transformer during different times of the switching cycle. The operational principle, large signal modeling, and design equations are presented. Experimental results demonstrate that the proposed converter can achieve a significant improvement in the efficiency for a 100W (5 V, 20 A) telecommunication on-board power supply.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2003.823193