Device for the dual loop servo-control of the cut-off voltage of

Details Device for the dual loop servo-control of the cut-off voltage of Device for the dual loop servo-control of the cut-off voltage of

1992-08-21

1993-11-30

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315 10, 315388, G09G 104, H01J 3126, H01J 2970

Patent

active

052668720

ABSTRACT:
The disclosure relates to cathode-ray tubes that have to be used at a low level of luminance. The cut-off voltage of the tube is modified by using two servo-control loops, the first one as a function of the value of the cathode current and the second one as a function of the luminance value of a zone that is located outside the operational image of the screen and consists of a particular luminophore. Selector means are used to change over from one loop to the other and vice versa as a function of the values of the cathode current and of the luminance of the zone with respect to certain predetermined thresholds.

REFERENCES:
patent: 4602272 (1986-07-01), Duschl
patent: 4705992 (1987-11-01), Ciocan
patent: 5077502 (1991-12-01), Shaklee et al.
patent: 5107189 (1992-04-01), Page

Affiliated with

Also associated with

Rating

Device for the dual loop servo-control of the cut-off voltage of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for the dual loop servo-control of the cut-off voltage of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for the dual loop servo-control of the cut-off voltage of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2099394