Deflection distortion correction circuit

Details Deflection distortion correction circuit Deflection distortion correction circuit

1992-10-05

1993-11-09

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315395, 315408, G09G 104, H01J 2970

Patent

active

052606287

ABSTRACT:
A vertical deflection distortion correction circuit, wherein there are provided a vertical deflection output circuit, a damping circuit, a vertical deflection yoke and a resonance circuit. A current is resonated in the resonance circuit, and on the other hand, a vertical deflection current is derived from the vertical deflection output circuit and supplied to the vertical deflection yoke. Then, the resonated current is superimposed on the vertical deflection current. The superimposed vertical deflection current is finally supplied to the vertical deflection yoke. The resonance circuit is constructed of an LC parallel circuit and a switching element circuit. The switching element circuit is compose of either FETs, or thyristors.

REFERENCES:
patent: 3479554 (1969-11-01), Kramer
patent: 3949269 (1976-04-01), Wheeler

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