Line deflection circuit with dynamic S correction

Details Line deflection circuit with dynamic S correction Line deflection circuit with dynamic S correction

1988-05-06

1989-08-22

Yusko, Donald J.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315370, 315 10, 315 30, H01J 2956

Patent

active

048599158

ABSTRACT:
In a line deflection circuit including an "S"0 correction capacitor in series with the deflection winding a second "S" capacitor is inserted in series with the first one, and there is impressed a sawtooth current at line frequency whose amplitude varies at field frequency by an auxiliary circuit similar to the main deflection circuit and of a source whose voltage varies parabolically with the field frequency. The supply circuit applies a d.c. voltage substantially without field modulation to the series arrangement formed by the two S capacitors.

REFERENCES:
patent: 3676733 (1972-07-01), Eulenberg et al.
patent: 3895258 (1975-07-01), Gruetman
patent: 4242714 (1980-12-01), Yoshida et al.
patent: 4533855 (1985-08-01), Willis et al.
patent: 4733141 (1988-03-01), Watanuki

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