Voltage controlled oscillator with a resonant network and a reac

Details Voltage controlled oscillator with a resonant network and a reac Voltage controlled oscillator with a resonant network and a reac

1990-11-21

1992-06-30

Grimm, Siegfried H.

Oscillators

With frequency adjusting means

With voltage sensitive capacitor

331176, 331177V, 331183, 332136, H03B 508, H03L 100, H03C 322

Patent

active

051266970

ABSTRACT:
Voltage controlled oscillator provided with a resonant network, an amplifier and a reactive network, all incorporated in an oscillator loop, the reactive network having one or more reactive components whose values depend on a control signal fed to a control input, so that the oscillator frequency can be regulated with said control signal. A control loop is provided between the resonant network and the reactive network, with which control loop the difference is determined between a measure of the imaginary part of the impedance or admittance of the resonant network and the control signal acting as reference quantity. The imaginary part of the impedance or admittance of the reactive network is regulated with said difference. The control loop contains a derivation circuit for deriving said measure and a differential amplifier, to one input of which the output signal of the derivation circuit is fed and to the other input of which the control signal is fed.

REFERENCES:
patent: 4063194 (1977-12-01), Helle
patent: 4518930 (1985-05-01), Rozema et al.
Patent Abstracts of Japan, vol. 9, No. 199, p. 380, 16 Aug. 1985 (Abstract of Japanese Patent 60063471 data 11 Apr. 1985, Inventor, Kiyotaka).

Affiliated with

Also associated with

Rating

Voltage controlled oscillator with a resonant network and a reac does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voltage controlled oscillator with a resonant network and a reac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage controlled oscillator with a resonant network and a reac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1866660