H - Electricity – 05 – B
Patent
H - Electricity
05
B
375/41, 355/50
H05B 41/00 (2006.01) G01R 13/00 (2006.01) G09G 3/28 (2006.01) H05B 41/30 (2006.01)
Patent
CA 1092250
GAS PANEL VOLTAGE REGULATOR ABSTRACT OF THE DISCLOSURE 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 charactertistics 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 Vs min. required to sustain the discharge. An offset circuit is used to increase the sustain signal by a predetermined amount above the Vs 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 such as aging.
277287
International Business Machines Corporation
Kerr Alexander
LandOfFree
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