Circuit for powering fluorescent lamps

Details Circuit for powering fluorescent lamps Circuit for powering fluorescent lamps

1975-07-28

1977-02-15

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

Plural load device systems

315101, 315105, 315122, 315189, 315210, 315324, 315DIG7, H05B 4124, H05B 4129

Patent

active

040084140

ABSTRACT:
A circuit employing an oscillator having a feedback loop for supplying operating current at a frequency in the range 20-25 kilohertz to a pair of fluorescent lamps connected in series. The heater filament of the first lamp is made a series element in the feedback loop of the oscillator, so that removal of that lamp disables the oscillator. Switching means is provided to bypass the open socket terminals of the second lamp when it is removed from its sockets, permitting power to continue to be supplied to the first lamp.

REFERENCES:
patent: 2637833 (1953-05-01), Skrotzki
patent: 2774917 (1956-12-01), Passmore
patent: 3629648 (1971-12-01), Brown et al.
patent: 3869640 (1975-03-01), Kolomyjec
patent: 3882354 (1975-05-01), May

Affiliated with

Also associated with

Rating

Circuit for powering fluorescent 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 Circuit for powering fluorescent lamps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for powering fluorescent lamps will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1438833