Digital lighting control system

Details Digital lighting control system Digital lighting control system

1979-02-21

1980-12-23

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Plural load device regulation

315199, 315291, H05B 3908

Patent

active

042412951

ABSTRACT:
A lighting control system for the control of the intensity of a plurality of lights, such as in theatre and television lighting, operating entirely by digital means. A novel trigger pulse generating means provides a trigger pulse for each SCR-type dimmer the phase angle of which pulse is a function of a binary encoded intensity indicating signal. The transfer characteristic of the system is controlled by a time-base generator providing and accumulating a phase encoded pulse train using information stored in a memory. The entire process is accomplished by binary means. The system provides more reliable, dependable and accurate lighting control at less cost, with especial reference to the marginal dimmer cost, than systems heretofore available.

REFERENCES:
patent: 3784874 (1974-01-01), Barrett et al.
patent: 4087702 (1978-05-01), Kirby et al.
patent: 4095139 (1978-06-01), Symonds et al.

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