Method and device for controlling welding power supply to avoid

Details Method and device for controlling welding power supply to avoid Method and device for controlling welding power supply to avoid

1984-05-03

1985-10-01

Shaw, Clifford C.

Electric heating

Metal heating

By arc

219123, 21913021, 21913051, B23K 909

Patent

active

045448264

ABSTRACT:
A method and a device for controlling a welding power supply, employing a control device essentially including a first switch means consisting of at least one switch in element to be turned on and off to control the output current of the power supply, second switch means adapted to be inserted in a welding current attenuating path when the first switch means is in off state, and an impedance means consisting of at least one impedance element connected parallel with the second switch means.

REFERENCES:
patent: 3792225 (1974-02-01), Needham et al.
patent: 3809853 (1974-05-01), Manz
patent: 4366362 (1982-12-01), Ohta et al.
patent: 4456813 (1984-06-01), Mizuno et al.

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