Temperature compensated video signal processing circuit with a v

Details Temperature compensated video signal processing circuit with a v Temperature compensated video signal processing circuit with a v

1975-05-21

1976-06-22

Mullins, James B.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328171, 330 23, H03K 508

Patent

active

039653714

ABSTRACT:
A temperature dependent variation of the voltage drop across a clipping pn junction device which causes the clipping voltage level of a DC restored video signal to vary is compensated by the base-to-emitter voltage variation of an emitter follower transistor having substantially the same temperature characteristic as the clipping pn junction device. A variation in the DC level of the DC restored video signal resulting from the base-to-emitter voltage variation of the emitter follower transistor is compensated by a feed back type differential amplifier whose output is fed back to one input thereof through an emitter follower transistor and a pn junction device.

REFERENCES:
patent: 3760196 (1973-09-01), Nomoto et al.

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