Welding current power supply with inductive clipping

Details Welding current power supply with inductive clipping Welding current power supply with inductive clipping

1985-07-29

1987-03-31

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

323249, B23K 1124

Patent

active

046545034

ABSTRACT:
A welding power supply for applying welding current to materials to be welded, particularly, for seam welding operations for thin materials, wherein the power loss of the unit is minimized, a wide range of welding conditions can be accommodated, and the welding quality is improved. The primary winding 7b of a reactor having an iron core is connected between an AC power source 6 and the welding electrodes 3, 4, while the center-tapped secondary winding 7a is connected to a current controlling unit 8. In the current controlling unit, when the welding current starts to exceed a predetermined value, the secondary winding is controlled so that the welding current cannot increase beyond the predetermined value.

REFERENCES:
patent: 2697200 (1954-12-01), Ball et al.
patent: 3042786 (1962-07-01), Babcock et al.

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