Switching controller and control device for a low pressure fluor

Details Switching controller and control device for a low pressure fluor Switching controller and control device for a low pressure fluor

1997-03-05

1999-06-22

Shingleton, Michael

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315291, 315307, 315DIG7, 315224, 363 98, 363134, 307125, H05B 3702

Patent

active

059145692

ABSTRACT:
A control device for a fluorescent lamp comprises two independent circuits based on a power transistor and a switching control circuit, series-connected between a high voltage and the ground. The power transistor has a diode that is reverse mounted between its two electrodes. The switching control circuit comprises a circuit for the detection of a voltage at the terminals of the diode greater than a voltage reference value and a circuit for the detection of the integral of the current flowing in the transistor that is greater than a current reference value corresponding to the power of the lamp.

REFERENCES:
patent: 4868728 (1989-09-01), Nuns
patent: 5075599 (1991-12-01), Overgoor et al.
patent: 5187414 (1993-02-01), Fellows et al.
patent: 5367247 (1994-11-01), Blocher et al.
patent: 5382881 (1995-01-01), Farkas et al.
patent: 5500792 (1996-03-01), Jeon et al.
patent: 5510974 (1996-04-01), Gu et al.
patent: 5546300 (1996-08-01), Lee et al.
patent: 5552979 (1996-09-01), Gu et al.
French Search Report from French Patent Application 94 07331, filed Jun. 15, 1994.

Affiliated with

Also associated with

Rating

Switching controller and control device for a low pressure fluor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switching controller and control device for a low pressure fluor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching controller and control device for a low pressure fluor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1709980