Square wave welding system

Details Square wave welding system Square wave welding system

1975-06-02

1976-12-21

Truhe, J. V.

Electric heating

Metal heating

By arc

219135, B23K 910

Patent

active

039990346

ABSTRACT:
A square wave welder includes two regulated constant current power supplies which are alternately connected to a welding electrode. The on time and current of each power supply are independently adjustable. Switching is accomplished by means of gate controlled thyristors, and each power supply is either connected to the electrode or its output is short circuited in order to maintain the current flow at a substantially constant level to improve current regulation.

REFERENCES:
patent: 2951930 (1960-09-01), McKechnie
patent: 3300683 (1967-01-01), Weishaar
patent: 3330933 (1967-07-01), Maklary
patent: 3528100 (1970-09-01), Budy
patent: 3688180 (1972-08-01), Chiasson et al.
patent: 3902037 (1975-08-01), Goto et al.

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