Lighting control for high intensity discharge lamp

Details Lighting control for high intensity discharge lamp Lighting control for high intensity discharge lamp

1982-11-22

1984-03-13

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315199, 315151, 315311, 315DIG4, H05B 41392

Patent

active

044370431

ABSTRACT:
The invention is directed to a circuit and method for effectively controlling the output illumination of high intensity discharge lamps. Electronic circuitry monitors the lamp current, lamp voltage and lighting output to result in a maintained lighting level while providing increased efficiency and energy conservation. The use of electronic controls eliminates the complicated magnetic circuitry found to be necessary for previous methods of control.

REFERENCES:
patent: 4320326 (1982-03-01), Banziger
patent: 4356433 (1982-10-01), Linden
Kappenhagen, Phase-Controlled Ballast Circuit Operates All High-Pressure Arc Lamps, Westinghouse Engineer, Jan. 1971, vol. 31, No. 1, pp. 25-29.

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