Circuit arrangement for switching a tuning voltage with low swit

Details Circuit arrangement for switching a tuning voltage with low swit Circuit arrangement for switching a tuning voltage with low swit

1976-06-23

1978-05-16

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

323 1, 330257, 334 15, H03J 524

Patent

active

040901246

ABSTRACT:
A switch for a varicap tuner has a differential amplifier. A feedback circuit comprising a current mirror and a feedback amplifier ensures equal current flow in the difference amplifier transistors, and thereby ensures temperature compensation.

REFERENCES:
patent: 3610955 (1971-10-01), Blaser et al.
patent: 3649926 (1972-03-01), Hill
patent: 3689848 (1972-09-01), Geffe et al.
patent: 3735151 (1973-05-01), Frederiksen et al.
patent: 3761741 (1973-09-01), Hoeft
patent: 3781699 (1973-12-01), Sakamoto
patent: 3786344 (1974-01-01), Davis et al.
patent: 3914700 (1975-10-01), Allner

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