Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Patent
1992-05-06
1993-10-12
Mis, David
Electric lamp and discharge devices: systems
Automatic substitution of the power supply
315172, 315219, 315224, 315307, 315DIG5, H05B 4129
Patent
active
052528910
ABSTRACT:
An uninterruptible fluorescent lamp circuit available for emergency lighting is comprised of an oscillatory boosting circuit which generates a high-frequency, high-voltage power, and a current-limiting circuit which limits current flowing to the fluorescent lamp (the load). Such a fluorescent lamp circuit can provide enough high-voltage power to activate the lamp without the need to use any conventional starter and stabilizer. The currentlimiting circuit uses transistors activated at a fixed voltage and a current-limiting resistance which slows the current. A voltageleading power output is generated which prevents the fluorescent lamp from burning out due to a current-leading power output. Since the power source is a high-frequency, high-voltage current, the flicker of the lamp can be effectively reduced. A battery is connectable to provide an unterruptible power source during an external power failure.
REFERENCES:
patent: 4682078 (1987-07-01), Pascalide
patent: 4686424 (1987-08-01), Nuckolls et al.
patent: 4977351 (1990-12-01), Bavaro et al.
LandOfFree
Uninterruptible fluorescent lamp circuit available for emergency does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Uninterruptible fluorescent lamp circuit available for emergency, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Uninterruptible fluorescent lamp circuit available for emergency will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1907134