Piezoelectric-drive apparatus, method of controlling...

Details Piezoelectric-drive apparatus, method of controlling... Piezoelectric-drive apparatus, method of controlling...

2011-08-16

2011-08-16

Rosenau, Derek (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S338000

Reexamination Certificate

active

07999438

ABSTRACT:
A piezoelectric driving device including a laminated body having a base that is capable of being deformed by applying force, a first piezoelectric body that is formed on a first face of the base directly or via another layer, and a second piezoelectric body that is formed on a second face of the base substantially parallel to the first face directly or via another layer, a driving voltage generating section that generates a driving voltage according to a displacement amount of the laminated body, a compensating voltage generating section that generates a compensating voltage compensating for hysteresis caused by the displacement of the laminated body by the driving voltage, and a voltage applying section that applies each of the driving voltage and the compensating voltage to each of the first piezoelectric body and the second piezoelectric body.

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“Office Action of Japan Counterpart Application”, issued on Nov. 30, 2010, p. 1, in which the listed references were cited.

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