Ballast adaptor for improving operation of fluorescent lamps

Details Ballast adaptor for improving operation of fluorescent lamps Ballast adaptor for improving operation of fluorescent lamps

1983-12-28

1986-12-23

Moore, David K.

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Inductance in the condenser circuit

315232, H05B 3700

Patent

active

046314504

ABSTRACT:
A ballast adaptor circuit which makes it possible to convert a conventional two lamp rapid start T12 ballast for operation of two T8 fluorescent lamps and by means of a simple modification that does not require cutting wires or extensive rewiring of the T12 ballast device. The adaptor circuit comprises an auxiliary circuit including a tuned series-parallel LC network connected in parallel with either one or both of the lamps. The LC network is tuned to supply an odd harmonic current to the lamps, preferably the seventh harmonic. Improved starting is achieved by adding a series RC circuit and a SIDAC trigger device to the network to produce voltage pulses at the peaks of the AC supply voltage.

REFERENCES:
patent: 3225255 (1965-12-01), Hume
patent: 3304464 (1967-02-01), Feinberg
patent: 4209730 (1980-06-01), Pasik
patent: 4238708 (1980-12-01), Kaneda
patent: 4399391 (1983-08-01), Hammer et al.
patent: 4496880 (1985-01-01), Luck

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-173429