Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Patent
1988-11-21
1990-04-03
Boudreau, Leo H.
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Automatic regulation
315246, 315DIG5, 315DIG7, 315291, H05B 4138
Patent
active
049143565
ABSTRACT:
A controller for a gas discharge lamp supplies the lamp with a direct current which has been pulse-width modulated at a high frequency via a smoothing circuit and a polarity inversion circuit. The polarity inversion circuit periodically reverses the polarity of current supplied to the lamp to equalize electrode wear in the lamp. The controller senses the lamp voltage, current, power or other characteristics and maintains at least one operating parameter of the lamp, for example the lamp current, constant. A warm up cycle allows this parameter to be adjusted for fast starting of the lamp.
REFERENCES:
patent: 4004188 (1977-01-01), Cooper
patent: 4170747 (1979-10-01), Holmes
patent: 4230970 (1980-10-01), Potter et al.
patent: 4277726 (1981-07-01), Burke
patent: 4322817 (1982-03-01), Kuster
patent: 4327309 (1982-04-01), Wallat
patent: 4337418 (1982-06-01), Walz
patent: 4370601 (1983-01-01), Horiletal
patent: 4412154 (1983-10-01), Klein
patent: 4414493 (1983-11-01), Henrich
patent: 4438374 (1984-03-01), Karius
patent: 4464606 (1984-08-01), Kane
patent: 4477748 (1984-10-01), Grubbs
patent: 4651060 (1987-03-01), Clark
patent: 4663570 (1987-05-01), Luchaco et al.
Actronic Lighting CC
Boudreau Leo H.
Razavi Michael
White John P.
LandOfFree
Controller for gas discharge lamps does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Controller for gas discharge lamps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controller for gas discharge lamps will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1359761