Controllable LC oscillator circuit

Details Controllable LC oscillator circuit Controllable LC oscillator circuit

1999-02-22

2000-11-28

Kinkead, Arnold

Oscillators

Solid state active element oscillator

Transistors

331167, H03B 512, H03B 508

Patent

active

061541028

ABSTRACT:
A controllable LC oscillator circuit has a resonant circuit including an inductance and a capacitance disposed in parallel. The oscillator is driven by an amplifier and the inductance is produced using coupled coils. The effective inductance of the coupled coils can be set by changing a gain of the amplifier, and a magnitude of the coupling factor of the coupled coils defines a magnitude of an adjustable frequency band of the oscillator.

REFERENCES:
patent: 5680077 (1997-10-01), Jonely et al.
patent: 5801592 (1998-09-01), Mann et al.
"Amateur Radio Technique", Pat Hawker, Radio Society of Great Brian, , pp. 138-140.
"LC-Oscillator Mit Stromgegen-Kopplung", A. B. Bredshaw, Elektor, pp. 7-94, Jul./Aug. 1983.

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