Electronic ballast with built-in times power saver and photoelec

Details Electronic ballast with built-in times power saver and photoelec Electronic ballast with built-in times power saver and photoelec

1994-02-01

1996-05-21

Pascal, Robert

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Electric switch controlled by the radiant energy responsive...

315307, 315360, 315247, 315DIG7, 315DIG5, H05B 3702

Patent

active

055192866

ABSTRACT:
An electronic ballast is provided with a built-in timed electric power saver and with photoelectric switching for high-pressure mercury vapor, metallic vapor and sodium vapor lamps. The electronic ballast with the built-in timed saver and photoelectric switching for high-pressure mercury vapor, metallic vapor and sodium lamps includes an electronic circuit having as a principle the obtaining of an increase in the frequency of the electric power distribution network. This increase is accomplished by means of a switching that results in a current limiting electronic device, which also is able to incorporate a timed electric power saver, the utilization of a single equipment for various lamp lower ratings, a photo-sensitive element for control of the lamp switching in accordance with the lighting level of the installation site and an ignitor for lamps requiring a voltage higher than the rated one.

REFERENCES:
patent: 4277728 (1981-07-01), Stevens

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