Design of protection circuit for arc welding power supply

Author

Teng, Qing Fang ; Zhang, Wei Zhong ; Zhu, Jian Guo ; Guo, You Guang

Author_Institution

Dept. of Autom. & Electr. Eng., Lanzhou Jiaotong Univ., Lanzhou, China

fYear

2011

fDate

14-16 Dec. 2011

Firstpage

232

Lastpage

234

Abstract

The paper discusses the design of protection circuits responsible for the reliability of arc welding power supply. The protection circuits include three parts, and they are soft-start circuit for anti-surge, circuit for eliminating transformer DC bias magnetic field and circuit for transient over-voltage suppression, respectively. The detail calculations about component parameters of these circuits are given. The transformer and the power devices in this paper are regarded as ideal devices. Meanwhile, their losses are neglected. The method can provide certain guide for improving reliability of protection circuit.

Keywords

arc welding; overvoltage protection; power supply circuits; arc welding power supply; protection circuit; soft-start circuit; transient over-voltage suppression; Capacitors; Inverters; Power supplies; Reliability; Surges; Switches; Welding; DC bias; anti-surge; arc welding power supply; over-voltage suppression; protection circuit; soft-start;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Superconductivity and Electromagnetic Devices (ASEMD), 2011 International Conference on

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4244-7852-1

Type

conf

DOI

10.1109/ASEMD.2011.6145108

Filename

6145108