Electric heating – Metal heating – By arc
Patent
1981-04-09
1983-05-17
Shaw, C. C.
Electric heating
Metal heating
By arc
2191305, B23K 909
Patent
active
043841880
ABSTRACT:
A control system for a pulsed DC arc welding system power supply is disclosed. The control system operates to automatically adjust the pulse width of the current pulses supplied at the arc gap by the power supply to control the power flow to the work pieces at the arc gap. An example of such a control system for a conventional pulsed DC arc welding system power supply comprises a variable resistance device connected in parallel with a normally closed time delay switch. This system is electrically connected in an impulsar control circuit of the power supply. The control system automatically changes the resistance within the conventional impulsar control circuit to provide an adjustment within the control circuit to alter the impulsar output signal which controls the pulse width of the current pulses supplied by the power supply.
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Adour David L.
Carrier Corporation
Daley Donald F.
Shaw C. C.
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