Horizontal deflection-high voltage circuit

Details Horizontal deflection-high voltage circuit Horizontal deflection-high voltage circuit

1989-01-26

1990-09-11

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315411, H01J 2970, H01J 2976

Patent

active

049565877

ABSTRACT:
A source-voltage controlling high voltage stabilizer for detecting the high voltage and controlling the source voltage, while providing a detector detecting the envelope of a horizontal deflection current, wherein the deflection current is stabilized as the voltage distribution of two scanning capacitors in a diode modulation type output stage and is so controlled that a coincidence is attained between the wave form of the output signal and that of the horizontal deflection current modulation signal. The source voltage supplied to the input side of the flyback transformer is controlled in such a manner that the high voltage obtained from the output side of the flyback transformer is maintained constant, and the circuit further has a variation detector for detecting the variation in the source voltage, wherein the detected variation component is applied to one of the junctions of the modulation coil.

REFERENCES:
patent: 204288 (1988-06-01), Kitou et al.
patent: 4242714 (1980-12-01), Yoshida et al.
patent: 4728868 (1988-03-01), Ishikawa et al.
patent: 4733141 (1988-03-01), Watanuki

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