Deflection driver in a video apparatus

Details Deflection driver in a video apparatus Deflection driver in a video apparatus

1991-05-31

1992-02-18

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315408, H09G 104, H01J 2970

Patent

active

050897560

ABSTRACT:
A driver stage of a horizontal deflection output transistor includes a transformer having a first winding coupled to an input signal at a horizontal deflection frequency, a second winding coupled across a base-emitter junction of the output transistor and a third winding coupled to the emitter of and in series with the output transistor. The third winding couples the emitter current to the base of the output transistor for supplying a substantial portion of the base current during the second half of trace.

REFERENCES:
patent: 3174073 (1965-03-01), Massman et al.
patent: 3435280 (1965-06-01), Havn
patent: 3441791 (1969-04-01), Beck
patent: 3466496 (1969-09-01), Geller et al.
patent: 3512040 (1970-05-01), Lester
patent: 4028589 (1977-06-01), Verbeij
patent: 4323825 (1982-04-01), Hayes
patent: 4647823 (1987-03-01), Luz
patent: 4734771 (1988-03-01), Lendaro et al.
Schematic diagram of a Chassis B-6510 television receiver Appollo 2550.

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