Voltage controlled oscillator suited for being formed in an inte

Details Voltage controlled oscillator suited for being formed in an inte Voltage controlled oscillator suited for being formed in an inte

1985-05-23

1986-06-17

LaRoche, Eugene R.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Transistorized controls

331 20, 331 34, 331177R, 358 19, 358 25, H03L 700, H03B 500, H03B 512

Patent

active

045958874

ABSTRACT:
A voltage controlled oscillator comprises a tank circuit for determining an oscillation frequency, a first circuit for delaying the signal having the oscillation frequency, a second circuit for advancing the signal having the oscillation frequency, the first and second circuit being connected in series, a third circuit interposed between the tank circuit and the series connection of the first and second circuits, the third circuit having the same equivalent circuit of the series connection, a first gain controlled amplifier amplifying the output from the first circuit, a second gain controlled amplifier amplifying the output from the second circuit, an adder for adding outputs from the first and second gain controlled amplifiers, a control circuit controlling the gains of the first and second gain controlled amplifiers, and a feed-back circuit for feeding the output of the adder to the tank circuit.

REFERENCES:
patent: 3691475 (1972-09-01), Mouri et al.
patent: 4128817 (1980-12-01), Gomi
patent: 4234858 (1980-11-01), Gomi
patent: 4485353 (1984-11-01), Fang et al.
patent: 4485354 (1984-11-01), Shanley, II et al.

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