Circuit arrangement for producing a vertical frequency deflectio

Details Circuit arrangement for producing a vertical frequency deflectio Circuit arrangement for producing a vertical frequency deflectio

1992-11-09

1994-05-17

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315371, H01J 2970, H01J 2976

Patent

active

053131460

ABSTRACT:
A circuit for generating a vertical frequency deflection current for the electron beams in the picture tube of a television receiver includes a current sensor resistor having one end connected to direct voltage potential by two resistors connected in series and a second end connected to a vertical frequency sawtooth signal by two additional resistors connected in series. An error signal generator has one input terminal connected to the junction the first two resistors and another input terminal connected the junction of the second two resistors. An output stage supplies the deflection current. The output terminal of the error signal generator is connected to the input terminal of the output stage. The error amplifier is a transconductance amplifier having an output terminal connected to reference potential by a series connection of a resistor and a capacitor.

REFERENCES:
patent: 5059874 (1991-10-01), Oliver

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