Vertical deflecting circuit using a raised source voltage

Details Vertical deflecting circuit using a raised source voltage Vertical deflecting circuit using a raised source voltage

1997-01-30

1998-06-23

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

G09G 104

Patent

active

057709300

ABSTRACT:
A vertical deflecting circuit comprises a vertical output circuit (12) which amplifies an input sawtooth wave signal and supplies a deflection current to a vertical deflection coil (13), a power source (14) which applies a source voltage to the vertical output circuit, a first pump-up circuit (17) which raises the voltage from the power source, and a second pump-up circuit (18) which further raises the output voltage from the first pump-up circuit. In a fly-back time of a vertical output signal, the vertical output circuit is operated by the voltage from the second pump-up circuit, and the vertical output circuit is operated by the voltage from the power source during a time coefficient.

REFERENCES:
patent: 3784857 (1974-01-01), Christopher
patent: 3969653 (1976-07-01), Fukaya
patent: 4184106 (1980-01-01), Schaas
patent: 4293803 (1981-10-01), Fitzgerald

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