Oscillator selectively operable with a parallel tuned or a serie

Details Oscillator selectively operable with a parallel tuned or a serie Oscillator selectively operable with a parallel tuned or a serie

1999-05-04

1999-11-09

Grimm, Siegfried H.

Oscillators

Convertible

331117R, 331179, 331177V, H03B 512

Patent

active

059822430

ABSTRACT:
An electronic oscillator of the Colpitts type with an amplifying element and a tank circuit. The tank circuit includes a parallel tuned resonant circuit, a series tuned resonant circuit and a switching circuit that selectively connects one of the resonant circuits to the tank circuit. The oscillator operates at a first frequency in the parallel tuned mode and a second frequency that is substantially twice the first frequency in the series tuned mode.

REFERENCES:
patent: 3105204 (1963-09-01), Weiler
patent: 4649354 (1987-03-01), Khanna
patent: 5856763 (1999-01-01), Reeser et al.

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