Apparatus for controlling the intensity of lights

Details Apparatus for controlling the intensity of lights Apparatus for controlling the intensity of lights

1974-11-27

1976-07-20

Kominski, John

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Pre-selectable regulator systems

315291, 315315, 307228, H05B 4138

Patent

active

039708934

ABSTRACT:
A latching circuit is used to exclusively select either a full intensity command signal, a presettable intermediate intensity command signal or a zero intensity command signal. The command signals are fed to an output signal generating circuit which controls a variable voltage supply source for a lighting system. A null comparator and integrating circuit compares the output signal with the selected command signal and increases or decreases the output signal until it is in conformity with the selected command signal. Circuits are also disclosed which provide the capability of changing the intensity of the lights between two preselected intermediate intensity levels or between any two of a number of preselected intermediate intensity levels.

REFERENCES:
patent: 3521124 (1970-07-01), Bogner
patent: 3579030 (1971-05-01), Bentham
patent: 3668467 (1972-06-01), Isaac
patent: 3706914 (1972-12-01), Van Buren
patent: 3766431 (1973-10-01), Isaacs

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