Universal fluorescent lamp ballast

Details Universal fluorescent lamp ballast Universal fluorescent lamp ballast

1989-02-14

1990-09-18

Mis, David

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

315209R, 315308, 315DIG5, H05B 4136

Patent

active

049581082

ABSTRACT:
A ballast having a converter for converting input power into DC at a high frequency and a commutator for converting the DC to AC at a low frequency to cause light emission from a gas discharge lamp. The converter also contains a transformer for converting the input AC to a low voltage AC for heating the filaments in the lamp. Current and Voltage sensors associated with the commutator provide feedback to control circuitry which allows power conversion after the filaments heat and the voltage to the lamp to increase to the voltage required to start the lamp even when different starting voltage requirement lamps are used. After the lamp starts, the lamp is soley current mode controlled. By frequency modulation of the commutator, both power and crest factor can be controlled.

REFERENCES:
patent: 4870327 (1989-09-01), Jorgensen

Affiliated with

Also associated with

Rating

Universal fluorescent lamp ballast does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Universal fluorescent lamp ballast, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Universal fluorescent lamp ballast will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1574027