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Electrical current source, in particular welding current source

  • US 20080190906A1
  • Filed: 01/29/2008
  • Published: 08/14/2008
  • Est. Priority Date: 08/02/2005
  • Status: Abandoned Application
First Claim
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1. Electrical current source, in particular welding current source, with a resonant converter which has a clocked bridge circuit, which at the input end is connected or connectable to an electrical direct-current source, and a resonant circuit which is disposed at the output end of the bridge circuit and has a transformer, and is connected or connectable to an output-end load circuit, in particular a welding process, via the secondary side of the transformer, at least two resonant converters being provided which at the input end are connected or connectable in series or in parallel, the secondary sides of the respective transformers being electrically connected entirely or partially in series, and the resonant converters having a common parallel capacitance which is electrically connected in parallel with the secondary sides or secondary-side portions of the transformers which are connected in series.

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