Closed-loop frequency control of an oscillator circuit

Details Closed-loop frequency control of an oscillator circuit Closed-loop frequency control of an oscillator circuit

1994-12-30

1996-06-18

Pascal, Robert

Oscillators

Automatic frequency stabilization using a phase or frequency...

Particular error voltage control

331179, H03L 700

Patent

active

055281990

ABSTRACT:
The output frequency of a simple low-power-dissipation oscillator circuit designed to drive PPS CMOS circuits is controlled by a closed-loop system. In response to deviations of the output frequency from a prescribed value, the system generates correction signals that are applied to an array of capacitors. In that way, capacitance is electrically added to or subtracted from a series-resonant path of the oscillator circuit, thereby to automatically establish and maintain the output frequency of the circuit at or near its prescribed value.

REFERENCES:
patent: 5036294 (1991-07-01), McCaslin
patent: 5144156 (1992-09-01), Kawasaki
patent: 5272452 (1993-12-01), Adachi et al.
patent: 5343169 (1994-08-01), Debaty
patent: 5349309 (1994-09-01), Fujii
T. Gabara, "Pulse Power Supply CMOS -PPS CMOS", 1994 IEEE Symposium on Low Power Electronics, San Diego, CA, Oct. 10-12, 1994, pp. 98-99.

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