Electric lamp and discharge devices: systems – Cathode ray tube circuits – Power supply from deflection circuit source
Patent
1994-05-02
1995-10-31
Issing, Gregory C.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Power supply from deflection circuit source
348730, H01J 2970, H04N 563
Patent
active
054632900
ABSTRACT:
A charge storage capacitor is coupled to an ultor electrode of a cathode ray tube for supplying a beam current when video loading variations occur. A relatively small resistor coupled in series with the capacitor develops an AC feedback signal that is indicative of beam current variations. The AC feedback signal developed in the resistor is coupled to a control input of a high voltage regulator in a negative feedback manner to compensate for the beam current variations. An ultor voltage is developed across a voltage divider. A DC feedback signal is coupled from a terminal of the voltage divider to the control input of the regulator. The DC feedback signal is low-pass filtered via a first low-pass filter. The AC feedback signal is low-pass filtered via a separate low-pass filter that provides less extensive low pass filtering than the first low-pass filter.
REFERENCES:
patent: 4184104 (1980-01-01), Shouse, Jr.
patent: 4298829 (1981-11-01), Luz
patent: 4559481 (1985-12-01), Dietz
patent: 4645990 (1987-02-01), Willis
patent: 4658342 (1987-04-01), Wharton
patent: 4774584 (1988-09-01), Schmadel
patent: 4801852 (1989-01-01), Kashiwagi
patent: 5010281 (1991-04-01), Rodriguez-Cavazos
patent: 5059874 (1991-10-01), Oliver
Henig Sammy S.
Issing Gregory C.
Laks Joseph J.
Thomson Consumer Electronics Inc.
Tripoli Joseph S.
LandOfFree
Power supply stabilization circuit with separate AC/DC negative does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power supply stabilization circuit with separate AC/DC negative , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply stabilization circuit with separate AC/DC negative will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1775389