Vertical deflection system for a television receiver

Details Vertical deflection system for a television receiver Vertical deflection system for a television receiver

1977-08-08

1979-04-03

Wilbur, Maynard R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315403, H01J 2970

Patent

active

041479637

ABSTRACT:
A vertical deflection system for a television receiver produces a sawtooth wave signal of a high linearity by high speed charge (or discharge) of a capacitor and a low speed discharge (or charge) thereof at a constant current rate, compares a deflection current flowing in a vertical deflection coil with the sawtooth wave signal in a differential amplifier to correct the deflection current whereby the amplitude and linearity of the vertical deflection are automatically corrected. The amplitude of the vertical deflection can be adjusted without affecting other characteristics.

REFERENCES:
patent: 3496407 (1970-02-01), Entenmann

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