Gas panel voltage regulator

Details Gas panel voltage regulator Gas panel voltage regulator

1976-05-27

1978-03-14

Wilbur, Maynard R.

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

315169TV, H05B 4100, H05B 4130

Patent

active

040792900

ABSTRACT:
To compensate for the relatively wide variation in the electrical operating parameters of a gaseous discharge device resulting from varied physical characteristics, the amplitude of the signal used to sustain a discharge is determined, generated and controlled as a function of the physical characteristics of the panel. In operation, a plurality of sample cells are used for control purposes, and the sustain signal applied to the sample cells is incremented from zero during each sustain cycle until the sample cells are discharged, to determine the minimum sustain signal V.sub.S min. required to sustain the discharge. An offset circuit is used to increase the sustain signal by a predetermined amount above the V.sub.S min. level for panel operation, and a voltage regulator is connected in a closed loop arrangement with the sustain generator to automatically adjust the sustain signal to compensate for variation in the physical parameters of the device due to aging.

REFERENCES:
patent: 4017762 (1977-04-01), Criscimagna et al.

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