Linearity correction circuit

Details Linearity correction circuit Linearity correction circuit

1984-06-27

1986-09-16

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315408, H01J 2956

Patent

active

046124810

ABSTRACT:
A linearity correction circuit for high speed horizontal scanning is disclosed. The correction circuit uses high speed, fast recovery components capable of operating in the fifty to one hundred kilohertz range. A variable inductor is tapped directly to the flyback transformer, the variable nature of the inductor giving a range of correction for linearity. The inductor is connected to a capacitor and a damper diode with a diode so that the voltage built up across the capacitor, which is connected to the deflection coil, causes the damper diode to conduct early, thus correcting linearity of the circuit. Using a minimum number of components a highly efficient circuit is provided both in operation and cost of construction.

REFERENCES:
patent: 2900565 (1959-08-01), Moore
patent: 3310705 (1967-03-01), Nicholson
patent: 3319111 (1967-05-01), Denton
patent: 3319112 (1967-05-01), Annus et al.
patent: 3319113 (1967-05-01), Denton
patent: 3398318 (1968-08-01), Bazin
patent: 3427496 (1969-02-01), Wood
patent: 3795835 (1974-05-01), Aldrich et al.

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