Welding control unit power supply

Details Welding control unit power supply Welding control unit power supply

1994-04-11

1995-07-25

Shaw, Clifford C.

Electric heating

Metal heating

By arc

21913001, 21913021, B23K 910, B23K 912

Patent

active

054364272

ABSTRACT:
A welding control unit power supply for providing a substantially constant and powerful DC supply voltage to the internal electronic components of the welding control unit. The DC supply voltage is derived from the high current welding power supply. The DC supply voltage is maintained substantially constant by means of the switching control circuit even upon occurrence of significant voltage variations in the welding power supply. The welding control unit circuit includes a permanently operating failure detection circuit.

REFERENCES:
patent: 4151396 (1979-04-01), Veal
patent: 4205211 (1980-05-01), Serlin et al.
patent: 4417129 (1983-11-01), Young
patent: 4450340 (1984-05-01), Corrigall et al.
patent: 4508954 (1985-04-01), Kroll
patent: 4514615 (1985-04-01), Simoneau et al.
patent: 4570050 (1986-02-01), Veal et al.
patent: 4638146 (1987-01-01), Koyama
patent: 4769754 (1988-09-01), Reynolds et al.

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