Temperature-compensated piezoelectric oscillator

Details Temperature-compensated piezoelectric oscillator Temperature-compensated piezoelectric oscillator

1988-09-26

1989-07-25

Mis, David

Oscillators

Electromechanical resonator

Crystal

331176, 331177V, H03B 532, H03L 100

Patent

active

048517917

ABSTRACT:
A temperature-compensated piezoelectric oscillator is disclosed. This oscillator comprises an oscillating circuit consisting of an amplifier, the output of which is looped back to the input through a piezoelectric resonator which is series mounted with a variable capacitance element, a circuit for the regulation of frequency according to temperature giving a compensation voltage and a circuit for frequency adjustment giving a variable in time resetting voltage, wherein the circuit for regulating the frequency according to temperature is connected to one of the terminals of the variable capacitance element through a means, the gain of which varies according to the resetting voltage delivered by the frequency adjusting circuit.

REFERENCES:
patent: 4028638 (1977-06-01), Towle

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