A novel phase-shift full-bridge ZVS PWM DC-DC converter employing auxiliary circuit

Author

Zhou, Chengjun ; Liu, Xiaobao ; Xie, Shaojun

Author_Institution

Nanjing Univ. of Aeronaut. & Astronaut., Nanjing

fYear

2008

fDate

24-28 Feb. 2008

Firstpage

1496

Lastpage

1501

Abstract

A novel phase-shift full-bridge converter is proposed in this paper. The converter topology presented here employs an auxiliary circuit consisting of a few passive components. With this auxiliary circuit, the full bridge converter can realize zero-voltage-switching (ZVS) independent of load and input voltage. The steady analysis and operating principle are demonstrated. Based on the analysis, a criterion of optimal design is given. A 1500 W/48 V prototype verified the feasibility of the converter.

Keywords

DC-DC power convertors; PWM power convertors; bridge circuits; zero voltage switching; auxiliary circuit; optimal design; phase-shift full-bridge ZVS PWM DC-DC converter; power 1500 W; steady analysis; voltage 48 V; zero-voltage-switching; Circuit topology; DC-DC power converters; Inductors; Leg; Pulse width modulation; Pulse width modulation converters; RLC circuits; Resonance; Switches; Zero voltage switching; auxiliary circuit; full-bridge; phase-shift; zero-voltage-switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2008. APEC 2008. Twenty-Third Annual IEEE

Conference_Location

Austin, TX

ISSN

1048-2334

Print_ISBN

978-1-4244-1873-2

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2008.4522922

Filename

4522922