Zero-voltage and zero-current switching full bridge DC-DC converter for arc welding machines

Authors
Jeon, SJ Cho, GH
Citation
Sj. Jeon et Gh. Cho, Zero-voltage and zero-current switching full bridge DC-DC converter for arc welding machines, ELECTR LETT, 35(13), 1999, pp. 1043-1044
Citations number
4
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
35
Issue
13
Year of publication
1999
Pages
1043 - 1044
Database
ISI
SICI code
0013-5194(19990624)35:13<1043:ZAZSFB>2.0.ZU;2-6
Abstract
A new zero voltage and zero current switching (ZVZCS) full bridge DC-DC con verter with transformer isolation is proposed for are welding machines. The proposed DC-DC converter uses an auxiliary transformer to obtain ZCS for t he leading leg which provides load current control capability even under sh ort circuit conditions. The power rating of the auxiliary transformer is si milar to 10% or more of the main transforms. The operation is verified by e xperiments.