Regulated deflection circuit

Details Regulated deflection circuit Regulated deflection circuit

1979-09-06

1981-02-17

Hubler, Malcolm F.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Power supply from deflection circuit source

315400, H01J 2970

Patent

active

042517567

ABSTRACT:
First and second capacitors are charged from a DC source of unregulated input voltage through the primary winding of a flyback transformer of a horizontal deflection circuit. The average voltage across the first capacitor is established as the voltage difference between the input voltage and the average voltage across the second capacitor. The first capacitor functions as a trace capacitor for a horizontal deflection winding. A switch applies a trace voltage to the horizontal deflection winding to generate a trace deflection current. The switch also applies the voltages developed across the second capacitor and across a flyback transformer secondary winding to a regulator inductance to control the flow of current in the second capacitor. The current flowing through the inductance is varied in order to control the voltage across the second capacitor for regulating a selected deflection circuit quantity.

REFERENCES:
patent: 3609447 (1971-09-01), Hirota et al.
patent: 3846673 (1974-11-01), Hirota et al.
patent: 4006385 (1975-11-01), Onodera
patent: 4024432 (1977-05-01), Boekhorst
patent: 4176304 (1979-11-01), Scott

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