Single power source arc welding apparatus

Details Single power source arc welding apparatus Single power source arc welding apparatus

1983-04-08

1984-10-23

Shaw, C. C.

Electric heating

Metal heating

By arc

21913051, B23K 909

Patent

active

044790465

ABSTRACT:
A pulse arc welding apparatus in which pulse current and base current are alternately supplied a welding unit 13 comprises a series circuit of a transistor 2, a reactor 3 and a current detector 4 connected between a single power source 1 and the welding unit, and a control circuit 20 for switching the transistor on and off in response to inputs from the current detector, pulse current upper and lower limiters 7, 8, and base current upper and lower limiters 21, 22.

REFERENCES:
patent: 4301355 (1981-11-01), Kimbrough et al.
patent: 4349720 (1982-09-01), Maklmaa

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