Sweep circuit for cathode-ray tube display

Details Sweep circuit for cathode-ray tube display Sweep circuit for cathode-ray tube display

1976-07-02

1977-10-18

Wilbur, Maynard R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315379, 315397, H01J 2970, H01J 2972

Patent

active

040548163

ABSTRACT:
A recurrent digital sweep signal starts an integrator fed by a constant current. The integrator includes push-pull Darlington stages, which act as alternately conducting controlled current sources for split deflection coils outside the integrator feedback loop. A phase shifter provides arcsine correction. A time-out circuit avoids excessive dissipation if the sweep signal should be lost.

REFERENCES:
patent: 3337767 (1967-08-01), Montrichard et al.
patent: 3760222 (1973-09-01), Smith
patent: 3947723 (1970-03-01), Thompson

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