Voltage controllable oscillator

Oscillators – Solid state active element oscillator – Transistors

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Details

331117R, 331177V, 331179, 331181, H03B 512

Patent

active

047315920

ABSTRACT:
An integrated voltage controllable oscillator having a transistor for oscillation is further provided with a resonance circuit externally connected to two electrodes of the transistor for oscillation and including a variable capacitance element adapted to vary a resonance frequency of the resonance circuit, and a high impedance element connected between the variable capacitance element and the ground in a circuit adapted to supply a control voltage to the variable capacitance element.

REFERENCES:
patent: 4484157 (1984-11-01), Halle et al.
patent: 4494081 (1985-01-01), Lea et al.
patent: 4500854 (1985-02-01), Meyer

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