Piezoelectric actuator control apparatus

Details Piezoelectric actuator control apparatus Piezoelectric actuator control apparatus

1988-02-08

1989-06-20

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310316, 310319, 310328, H01L 4108

Patent

active

048411914

ABSTRACT:
Disclosed herein are a piezoelectric actuator control apparatus comprising a capacitor connected in series with a piezoelectric actuator that has electrodes, and a control device that controls the voltage applied to the piezoelectric actuator such that the voltage of the capacitor will reach a predetermined value, as well as a piezoelectric actuator control apparatus comprising an integrating circuit connected to one electrode of a piezoelectric actuator that has electrodes, and a control device that controls the voltage of the other electrode of the piezoelectric actuator such that the output of the integration circuit will assume a predetermined magnitude.

REFERENCES:
patent: 3868698 (1975-02-01), Dressler
patent: 3916226 (1975-10-01), Knoll
patent: 4263527 (1981-04-01), Comstock
patent: 4451710 (1984-05-01), Taylor et al.
patent: 4608506 (1986-08-01), Tanuma
patent: 4689514 (1987-08-01), Kondoh

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