Lamp ballast circuit characterized by a single resonant frequenc

Details Lamp ballast circuit characterized by a single resonant frequenc Lamp ballast circuit characterized by a single resonant frequenc

1995-06-05

1997-11-11

Pascal, Robert

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Inductance in the condenser circuit

315224, 315DIG7, H05B 3700

Patent

active

056867980

ABSTRACT:
A lamp driving circuit having a series inductor and capacitor (L-C) in which the lamp load is connected in parallel with the capacitor. During pre-ignition of the lamp load, the driving signal supplied by a half-bridge oscillator includes a fundamental frequency and higher odd harmonics including a third harmonic of the fundamental frequency. The resonant frequency of the series connected L-C circuit is at least .sqroot.5 times greater than the fundamental frequency but not equal to the higher odd harmonic frequencies, preferably less than the third harmonic of the driving signal.

REFERENCES:
patent: 3986076 (1976-10-01), Rottier
patent: 4053813 (1977-10-01), Kornrumpf et al.
patent: 4647817 (1987-03-01), Fahnrich
patent: 5289083 (1994-02-01), Quazi
patent: 5463284 (1995-10-01), Mattas

Affiliated with

Also associated with

Rating

Lamp ballast circuit characterized by a single resonant frequenc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lamp ballast circuit characterized by a single resonant frequenc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lamp ballast circuit characterized by a single resonant frequenc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1231801