Method for temperature compensation of a voltage-controlled crys

Details Method for temperature compensation of a voltage-controlled crys Method for temperature compensation of a voltage-controlled crys

1988-09-28

1990-01-09

LaRoche, Eugene R.

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

331 69, H03L 104

Patent

active

048930970

ABSTRACT:
A heating or, respectively, cooling device is realized by a Peltier element and is assigned to a crystal oscillator and driven by a processor with the assistance of a temperature sensor such that the crystal exhibits one of two selected temperatures lying closest to the ambient temperature. A compensation value is stored in the memory of the processor for each of the crystal temperatures selected from an operating temperature range. This compensation value effects the compensation of the frequency deviations of the crystal oscillator that are caused by temperature fluctuations.

REFERENCES:
patent: 3409841 (1968-11-01), Munn
patent: 4479096 (1984-10-01), Fowks
patent: 4593258 (1986-06-01), Block
Publication by R. A. Katritzky, "ZVEI", pp. 148-149, Vistas Verlag, Berlin, 1985.

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