Method and apparatus for control of fluorescent lamps

Details Method and apparatus for control of fluorescent lamps Method and apparatus for control of fluorescent lamps

1999-07-26

2000-10-31

Wong, Don

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

Pulsating or a.c. supply to the cathode or heater circuit

315309, 307 31, 307116, H05B 3904

Patent

active

061407720

ABSTRACT:
A fluorescent lamp controller for fluorescent lamps, the controller being responsive to the instantaneous power applied to the filaments and further generating a computed temperature signal to drive a filament as a function of the thermal characteristics of time versus temperature of the filament where the controller further controls application of arc power to the fluorescent lamp based upon the computed temperature signal.

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patent: 5132595 (1992-07-01), Kulka et al.
patent: 5424611 (1995-06-01), Moriarty, Jr.
patent: 5623184 (1997-04-01), Rector
patent: 5642016 (1997-06-01), Shalvi
patent: 5747777 (1998-05-01), Matsuoka
patent: 5798614 (1998-08-01), Bishop
patent: 5925990 (1999-07-01), Crouse et al.
patent: 5939836 (1999-08-01), Mita et al.

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