Drive circuit for a piezoelectric resonator used in a fluidic ga

Details Drive circuit for a piezoelectric resonator used in a fluidic ga Drive circuit for a piezoelectric resonator used in a fluidic ga

1982-06-25

1984-08-28

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

044685815

ABSTRACT:
The present invention is directed to a phase locked driving circuit for a piezoelectric pump in a fluidic gas angular rate sensor in which the driving circuit comprises a voltage controlled oscillator for providing an oscillating drive signal to the piezoelectric pump. A phase difference detector is coupled to the output of the oscillator for detecting the phase of the current of the output signal and the phase of the voltage of the output signal and for providing an output indicative of the phase difference therebetween. An error amplifier is coupled to the phase difference detector for comparing the phase difference to a predetermined phase difference and for producing a voltage indicative thereof. The voltage of the error detecting circuit is applied to the control input of the voltage controlled oscillator for controlling the output thereof.

REFERENCES:
patent: 3107630 (1963-10-01), Johnson et al.
patent: 3447051 (1969-05-01), Attwood et al.
patent: 3819961 (1974-06-01), Bourgeois et al.
patent: 3842340 (1974-10-01), Brandquist
patent: 3931533 (1976-01-01), Raso
patent: 3975650 (1976-08-01), Payne
patent: 4020699 (1977-05-01), Schaffer
patent: 4271371 (1981-06-01), Furuichi et al.
patent: 4275363 (1981-01-01), Mishiro et al.
patent: 4277758 (1981-07-01), Mishiro

Affiliated with

Also associated with

Rating

Drive circuit for a piezoelectric resonator used in a fluidic ga does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drive circuit for a piezoelectric resonator used in a fluidic ga, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive circuit for a piezoelectric resonator used in a fluidic ga will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-879104