DocumentCode
1546593
Title
Zero-voltage and zero-current switching full bridge DC-DC converter for arc welding machines
Author
Jeon, Seong-Jeub ; Cho, Gyu-Hyeong
Author_Institution
Dept. of Electron. Eng., Pukyong Nat. Univ., Pusan, South Korea
Volume
35
Issue
13
fYear
1999
fDate
6/24/1999 12:00:00 AM
Firstpage
1043
Lastpage
1044
Abstract
A new zero voltage and zero current switching (ZVZCS) full bridge DC-DC converter with transformer isolation is proposed for arc welding machines. The proposed DC-DC converter uses an auxiliary transformer to obtain ZCS for the leading leg, which provides load current control capability even under short circuit conditions. The power rating of the auxiliary transformer is /spl sim/10% or more of the main transformer. The operation is verified by experiments.
Keywords
DC-DC power convertors; 10 kW; arc welding machines; auxiliary transformer; full bridge DC-DC converter; load current control capability; transformer isolation; zero-current switching; zero-voltage switching;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19990719
Filename
784515
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