Welding power supply

Details Welding power supply Welding power supply

B - Operations, Transporting

23

K

327/67

B23K 9/09 (2006.01) B23K 9/073 (2006.01)

Patent

CA 1170728

12604 WELDING POWER SUPPLY ABSTRACT OF THE DISCLOSURE A controllable A.C. power supply for supplying quasi square waves of alternating current to a welding arc between an electrode and a metal workpiece such as aluminum, aluminum alloys and the like comprising a first controllable alternately conducting current path for providing for current flow from the electrode to the workpiece; a second controllable alternately conducting current path for providing for current flow from the workpiece to the electrode; inductor means connect in the First and second current paths for accumulating and dissipating energy to maintain the square waves of current; and commutating means for forcibly rendering the second current path nonconductive whereby energy stored in the inductor means provides a voltage sufficient to reestablish the welding current flow from the electrode to the workpiece. S P E C I F I C A T I O N - 1 -

405532

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