Circuit for separating the output of an oscillator from the othe

Details Circuit for separating the output of an oscillator from the othe Circuit for separating the output of an oscillator from the othe

1997-07-23

1999-01-12

Mis, David

Oscillators

Combined with particular output coupling network

Space discharge or unilaterally conductive device in output...

331 74, 331117R, 331183, 331177V, H03B 512, H03B 100, H03L 500

Patent

active

058595732

ABSTRACT:
The invention concerns oscillator circuits, more particularly coupling arrangements between an oscillator and an amplifier stage following the oscillator. The solution according to the invention optimizes the intensity of the coupling between the oscillator and the following amplifier stage so that the desired output level of the oscillator circuit is gained but the oscillator is loaded as little as possible. In the system according to the invention, the impedance value of the circuit element between the oscillator and the amplifier stage has been arranged to be automatically adjustable so that it is always adjusted to its smallest value, on which the desired output level of the oscillator coupling can still be gained. The coupling can, for example, be formed by means of a capacitance diode, the bias voltage of which is adjusted according to the direct voltage detected at the output level of the amplifier stage.

REFERENCES:
patent: 3260960 (1966-07-01), Bangert
patent: 5164685 (1992-11-01), Niemio
patent: 5357222 (1994-10-01), Hietala
patent: 5446417 (1995-08-01), Korhonen et al.
patent: 5534825 (1996-07-01), Goma et al.
patent: 5564100 (1996-10-01), Huang et al.
patent: 5576667 (1996-11-01), Goma

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