Inverter controlled-type power source for arc welding

Details Inverter controlled-type power source for arc welding Inverter controlled-type power source for arc welding

1988-06-29

1989-10-24

Shaw, Clifford C.

Electric heating

Metal heating

By arc

2191304, B23K 909

Patent

active

048764337

ABSTRACT:
An arc welding power source supplies a high voltage for the reignition of an arc after the polarity reversal of a welding current to prevent the destruction of circuit elements and ensure the stable and positive polarity reversal despite its reduced size, and also the occurrence of a spike voltage in a main circuit during the polarity reversal of a large current or alternatively the welding current during the polarity reversal is controlled to suppress a spike voltage during the current reversal.

REFERENCES:
patent: 3780258 (1973-12-01), Iceland et al.
patent: 4485293 (1984-11-01), Tabata et al.

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