Driving circuit for piezoelectric bi-morph

Details Driving circuit for piezoelectric bi-morph Driving circuit for piezoelectric bi-morph

1984-08-31

1986-02-04

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310317, 310332, 200181, H01L 4108

Patent

active

045688494

ABSTRACT:
A driving circuit for driving a piezoelectric bi-morph constituted by joining a pair of piezoelectric elements so that their polarization axes are directed in directions opposite to each other. The driving circuit includes a driving power source, a first switch portion through which a common junction of the pair of piezoelectric elements is connected to one side of the driving power source, with the other terminal of one piezoelectric element being connected to the other side of the driving power source, and a second switch portion to which the other terminal of the other piezoelectric element is connected.

REFERENCES:
patent: 2195417 (1940-04-01), Mason
patent: 4093883 (1978-06-01), Yamamoto
patent: 4233637 (1980-11-01), Kubota

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