Frequency independent CRT horizontal sweep generator having curr

Details Frequency independent CRT horizontal sweep generator having curr Frequency independent CRT horizontal sweep generator having curr

1989-03-03

1990-09-11

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315388, 315411, H01J 2970

Patent

active

049565869

ABSTRACT:
A signal generator which generates an yoke signal for application to a horizontal yoke of a cathode ray tube (CRT) is presented. The signal generator receives a dc signal which indicates the width of the horizontal scan lines of the cathode ray tube and receives a pincushion correction signal. The signal generator includes a voltage source, a yoke current generator, a current feedback network, a summing circuit, an amplifier and a voltage regulator. The summing circuit sums the voltage of the dc signal and the pincushion correction signal. The current feedback network generates a first feedback signal with a first feedback signal voltage proportional to the peak value of current through the horizontal yoke. The amplifier generates a second feedback signal based on the difference in the voltage of the first feedback signal voltage and the summed voltage of the dc signal and the pincushion correction signal. In response to the second feedback signal the voltage regulator varies the voltage of a signal applied to the horizontal yoke so that the second feedback signal indicates that the first feedback signal voltage and the summed voltage of the dc signal and the pincushion correction signal are matched.

REFERENCES:
patent: 4309640 (1982-01-01), Gordon
patent: 4581563 (1986-04-01), Rockrohr

Affiliated with

Also associated with

Rating

Frequency independent CRT horizontal sweep generator having curr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency independent CRT horizontal sweep generator having curr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency independent CRT horizontal sweep generator having curr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1186648