Raster-centering circuit

Details Raster-centering circuit Raster-centering circuit

1980-02-22

1981-10-06

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

H01J 2954

Patent

active

042938040

ABSTRACT:
In a raster-centering circuit for a TV set or other cathode ray tube system, various voltage divider configurations including adjustable resistances are used to establish adjustment DC levels at one or both ends of a vertical deflection coil. If these adjustable resistances are adjusted to apply a potential difference across the deflection coil, the result is a constant centering current flowing through the coil to maintain a steady-state magnetic bias field for vertical centering of the electron beam. In one configuration the sweep amplifier itself is part of the DC centering current path. All of the adjustable resistances are ganged in aiding relationship so far as their effect on the direction of beam centering is concerned.

REFERENCES:
patent: 2250884 (1941-07-01), Bahring
patent: 2470197 (1949-05-01), Torsch

Affiliated with

Also associated with

Rating

Raster-centering circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Raster-centering circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Raster-centering circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1208860