Direct current power supply for manual arc welding

Details Direct current power supply for manual arc welding Direct current power supply for manual arc welding

1976-05-17

1977-09-13

Truhe, J. V.

Electric heating

Metal heating

By arc

219131WR, 363 84, B23K 910

Patent

active

RE0294004

ABSTRACT:
A direct current power supply for manual arc welding comprising a polyphase transformer, a polyphase rectifier system including triggered rectifier valves, and a control system therefor which comprises means for setting the output current level by adjustment of a reference signal, means providing negative feed-back of the output voltage and the output current, and means for adjusting the slope of the characteristic by adjustment of the proportion between the amounts of feed-back of the voltage and the current. The current level setting means and the slope adjustment means are linked with each other to provide automatically a desired correlation between the slope and the current setting.

REFERENCES:
patent: 3530359 (1970-09-01), Grist
patent: 3584186 (1971-06-01), Stearns et al.
A. F. Manz, "The One Knob Welder," Welding Journal, Sept. 1968, pp. 720-725.

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