Transistor oscillator with compensating circuit for variable col

Details Transistor oscillator with compensating circuit for variable col Transistor oscillator with compensating circuit for variable col

1985-03-08

1986-05-20

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331175, 331177V, H03B 512, H03L 100

Patent

active

045904430

ABSTRACT:
A low noise oscillator is disclosed wherein the collector and base of a transistor are respectively biased at different voltages from a common voltage source to be conditioned for generating a high frequency oscillation with a resonant circuit connected to the emitter and collector. The high frequency oscillation developed at the base of the transistor is coupled to ground. A capacitive circuit is coupled between the collector and base of the transistor to eliminate the effect of a voltage-dependent capacitance inherently present in the transistor between its collector and base on the frequency of the oscillation in order to reduce the level of noise introduced to sidebands.

REFERENCES:
patent: 3483437 (1969-12-01), Coyne

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