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

Author

Koo, Gwan-Bon ; Moon, Gun-Woo ; Youn, Myung-Joong

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

Volume

19

Issue

2

fYear

2004

fDate

3/1/2004 12:00:00 AM

Firstpage

411

Lastpage

419

Abstract

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.

Keywords

bridge circuits; phase convertors; power transformers; switching convertors; telecommunication power supplies; 100 W; 20 A; 5 V; ZVS ranges; onboard power supply; phase shift full bridge converter; series connected transformers; switching cycle; zero voltage switching; Bridge circuits; Inductors; Leg; Magnetic flux; Switches; Switching converters; Telecommunication switching; Topology; Transformers; Zero voltage switching;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2003.823193

Filename

1271325