Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1996-10-31
1998-11-03
Pascal, Robert J.
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
315291, 315307, 345 98, 345100, G09G 310
Patent
active
058313923
ABSTRACT:
A voltage-adjustment section (20) of an electronic device converts an input control voltage (V.sub.1) into an output control voltage (V.sub.0) in such a way that a collector current (I.sub.CP) form with electrons emitted from an emitter (EP) of an emission/collection cell (26), or triode, varies in a desired, typically linear, manner with the input control voltage. The triode further includes a collector (CP) that carries the collector current and a gate electrode (GP) that regulates the collector current as a function of the output control voltage. Control of the collector current so as to achieve the desired current/voltage relationship is achieved with an analog control loop containing the triode and an amplifier (28) coupled between the triode's collector and gate electrode. The triode thus typically has a linear gamma characteristic relative to the input control voltage. The voltage-adjustment section is suitable for use in a display device such as a flat-panel display.
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Field John E.
Hansen Ronald L.
Spindt Christopher J.
Candescent Technologies Corporation
Meetin Ronald J.
Pascal Robert J.
Shingleton Michael
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