Starter circuits for discharge lamps

Details Starter circuits for discharge lamps Starter circuits for discharge lamps

1989-03-16

1991-04-23

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With cathode or cathode heater supply circuit

Discharge device and/or rectifier in the cathode or heater...

315 99, 315106, 315290, 315DIG2, H05B 4136

Patent

active

050102745

ABSTRACT:
A starter circuit for a discharge lamp includes a current control circuit which initially has a low impedance so as to produce an initial cathode heating current for the lamp. The current control circuit is switched into a high impedance condition by means of a control voltage applied to its gate thereby causing a high voltage striking pulse to be applied across the lamp. A field effect transistor is effective to modify the control voltage to the gate such that the starting circuit is effective to produce a succession of starting pulses across the lamp during each half cycle of a rectified AC supply.

REFERENCES:
patent: 3942070 (1976-03-01), Tomura et al.
patent: 3978368 (1976-08-01), Tomura et al.
patent: 3978369 (1976-08-01), Imaizumi et al.
patent: 4119887 (1978-10-01), Iyama et al.
patent: 4165475 (1979-08-01), Pegg et al.
patent: 4544863 (1985-10-01), Hashimoto
patent: 4629944 (1986-12-01), Maytum et al.
patent: 4673844 (1987-06-01), Maytum et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1623212