Temperature-compensated piezoelectric oscillator

Details Temperature-compensated piezoelectric oscillator Temperature-compensated piezoelectric oscillator

1996-04-26

1998-01-06

Mis, David

Oscillators

With device responsive to external physical condition

Temperature or light responsive

331 68, 331108D, 331158, 331177R, H03B 536, H03B 504, H01L 102

Patent

active

057059578

ABSTRACT:
This invention provides a temperature-compensated piezoelectric oscillator having an oscillation frequency that is easily adjusted in an adjustment procedure after its assembly. Compensation for frequency-temperature characteristics is achieved without the need for an externally installed variable reactance element. The temperature-compensated piezoelectric oscillator includes a piezoelectric oscillator element and an oscillator circuit that drives the piezoelectric oscillator element. The oscillator circuit changes the oscillation frequency in response to an applied power supply voltage VDD(T). A temperature sensor circuit senses the ambient temperature T of the piezoelectric oscillator element. A variable power supply circuit changes the power supply voltage VDD(T) applied to the oscillator circuit in response to the temperature sensed by the temperature sensor circuit. The changes in the applied power supply voltage VDD(T) changes the frequency-temperature characteristics of the oscillator circuit.

REFERENCES:
patent: 4746879 (1988-05-01), Ma et al.
patent: 5053726 (1991-10-01), Christopher et al.
patent: 5075643 (1991-12-01), Einbinder
patent: 5081431 (1992-01-01), Kuichi et al.
patent: 5097228 (1992-03-01), McJunkin
patent: 5241286 (1993-08-01), Mirow

Affiliated with

Also associated with

Rating

Temperature-compensated piezoelectric oscillator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature-compensated piezoelectric oscillator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature-compensated piezoelectric oscillator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2332515