Voltage controlled oscilator having controlled bias voltage, AGC

Details Voltage controlled oscilator having controlled bias voltage, AGC Voltage controlled oscilator having controlled bias voltage, AGC

1991-09-30

1992-07-14

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331 74, 331117R, 331177R, 331183, 332125, 332135, H03B 512, H03L 500

Patent

active

051306743

ABSTRACT:
A voltage controlled oscillator circuit including an oscillator circuit having first and second terminals to which an external inductance is connected. A frequency control voltage (V.sub.F) is applied through a bias circuit to the second terminal for varying the center frequency. The oscillator circuit may have an AGC circuit or a modulation circuit connected to it. An output amplifier is connected with the first terminal and has an adjustable output impedance for matching the input impedance of a load circuit.

REFERENCES:
patent: 4270102 (1981-05-01), Gawler et al.
patent: 5027429 (1991-06-01), Kojima

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