Modulatged high frequency discharge lamp operating circuit with

Details Modulatged high frequency discharge lamp operating circuit with Modulatged high frequency discharge lamp operating circuit with

1994-09-22

1995-06-13

Pascal, Robert J.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

315224, 315226, 315307, 315DIG2, 315DIG4, 315DIG5, H05B 4116

Patent

active

054246164

ABSTRACT:
A circuit arrangement for operating a discharge lamp by means of a high-frequency current includes a switching device for generating the high-frequency current from a supply voltage, a modulator for the substantially square-wave modulation of the amplitude of the high-frequency current at a modulation frequency f, and an apparatus (M) for limiting the interference with infrared systems caused by the discharge lamp. The limiting apparatus (M) comprise a circuit N for providing a gradual increase in the rate at which the amplitude of the high-frequency current decreases at the end of a square wave of the square-wave modulation. This provides a considerable reduction in the interference with infrared systems caused by a lamp operated by the circuit arrangement.

REFERENCES:
patent: 4766350 (1988-08-01), Husgen et al.
patent: 5243261 (1993-09-01), Bergervoet et al.

Affiliated with

Also associated with

Rating

Modulatged high frequency discharge lamp operating circuit with does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modulatged high frequency discharge lamp operating circuit with , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modulatged high frequency discharge lamp operating circuit with will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1311884