Oscillator circuit

Details Oscillator circuit Oscillator circuit

2008-05-13

2008-05-13

Lee, Benny (Department: 2817)

Oscillators

Solid state active element oscillator

Transistors

C331S167000, C331S17700V, C331S03600C

Reexamination Certificate

active

11336505

ABSTRACT:
The invention is directed to an oscillator circuit in which a frequency-determining resonant circuit includes an inductive element, a first capacitive element and at least one second capacitive element which is connected in series with the first capacitive element. A node is provided between the first capacitive element and at least one second capacitive element. The oscillator circuit contains a damping reduction amplifier which is arranged in parallel with the frequency-determining resonant circuit. In addition, the oscillator circuit has a first tuneable capacitive element, which is connected in parallel with the first capacitive element of the resonant circuit and has a connection connected to the node.

REFERENCES:
patent: 5247265 (1993-09-01), Norimatsu
patent: 5739730 (1998-04-01), Rotzoll
patent: 6621364 (2003-09-01), Grewing et al.
patent: 6917248 (2005-07-01), Nguyen
patent: 7183870 (2007-02-01), Takagi
patent: 2002/0014925 (2002-02-01), Ochiai
patent: 102 09 517 (2003-06-01), None
patent: 103 12 436 (2004-10-01), None

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