Circuit for use with arc voltage controllers in AC gas tungsten

Details Circuit for use with arc voltage controllers in AC gas tungsten Circuit for use with arc voltage controllers in AC gas tungsten

1980-07-25

1983-05-24

Shaw, C. C.

Electric heating

Metal heating

By arc

21912402, 307110, B23K 910

Patent

active

043852238

ABSTRACT:
A signal conditioning circuit for providing a DC voltage to an arc voltage controller for controlling the length of an AC arc of a gas tungsten arc welder. Specifically, a first control circuit is employed which charges to a first value by a signal of a given polarity of one cycle of the AC arc for providing a DC voltage and an additional control circuit is employed for rapidly discharging the first control circuit when the maximum absolute amplitude of a signal of a given polarity of a subsequent cycle of the AC arc is less than the DC voltage provided by the first control circuit. The first control circuit is charged to a higher second value when the maximum absolute amplitude of a signal of a given polarity of a subsequent cycle of the AC arc is greater than the DC voltage provided by the first control circuit. In a preferred embodiment, a doubling circuit is employed to provide a DC voltage roughly equivalent to twice the DC voltage provided by the first control circuit and bias circuitry is employed for providing power to the additional control circuit.

REFERENCES:
patent: 2832000 (1958-04-01), Steele
patent: 2880374 (1959-03-01), Mulder
patent: 2924769 (1960-02-01), Harrimon et al.
patent: 3024354 (1962-03-01), Mierendorf et al.
patent: 3041445 (1962-06-01), Lobosco et al.
patent: 3236997 (1966-02-01), Johnson et al.
patent: 3443057 (1969-05-01), Allen et al.

Affiliated with

Also associated with

Rating

Circuit for use with arc voltage controllers in AC gas tungsten does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for use with arc voltage controllers in AC gas tungsten , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for use with arc voltage controllers in AC gas tungsten will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2147475