Oscillators – Amplitude control or stabilization – Automatic
Patent
1989-08-25
1991-07-02
Grimm, Siegfried H.
Oscillators
Amplitude control or stabilization
Automatic
307547, H03B 500, H03L 500
Patent
active
050288890
ABSTRACT:
Disclosed is an oscillator circuit comprised of a sharp bandpass filter having an input and an output; a linear gain stage having an input and an output, the output of the sharp bandpass filter being connected to the input of the linear stage; a limiter having an input and an output, the output of the linear stage being connected to the input of the limiter; and a feedback loop having an input and an output, the output of the limiter being connected to the input of the feedback loop and the output of the feedback loop being connected to the input of the sharp bandpass filter, wherein the improvement being comprised of the limiter being a symmetrical active clamp.
REFERENCES:
patent: 3137826 (1964-06-01), Boudrias
patent: 3460056 (1969-08-01), Berger
patent: 4797639 (1989-01-01), Driscoll
Grimm Siegfried H.
Lunn Paul G.
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