Television vertical ramp generator

Details Television vertical ramp generator Television vertical ramp generator

1979-03-07

1980-10-28

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

315388, 331153, H03K 3282

Patent

active

042309980

ABSTRACT:
A vertical sawtooth generator adaptable for integrated circuit application self-oscillates under control of a latch circuit. A circuit controls the linearity of the charging capacitor ramp voltage. High frequency components of the recurrent ramp occurring due to the retrace discharge current are reduced by controlling the discharge currents. The ramp rate is controlled by a single resistor external to an integrated circuit.

REFERENCES:
patent: 3439221 (1969-04-01), Drummond
patent: 3735192 (1973-05-01), Avery
patent: 3796912 (1974-03-01), Funston

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