Plasma arc power supply and method

Details Plasma arc power supply and method Plasma arc power supply and method

1983-10-27

1986-04-01

Albritton, C. L.

Electric heating

Metal heating

By arc

2191301, 219137PS, 219121PY, B23K 900

Patent

active

045800294

ABSTRACT:
A plasma arc system for plasma arc welding and cutting including a plasma arc torch in circuit with a constant current power supply comprising a transformer having a primary winding and at least one secondary winding with the primary winding connected to a source of alternating current and a bridge rectifier circuit connected across the secondary winding to provide a DC current output. A bank of capacitors is connected across the secondary winding of the transformer with its capacitive reactance matched to the inductive reactance of the transformer to establish a condition of resonance.

REFERENCES:
patent: 3316381 (1967-04-01), Gibson
patent: 3586817 (1971-06-01), Manz
patent: 3594541 (1971-07-01), Gorman et al.

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