Document Type and Number:
Japanese Patent JPH0122211
Kind Code:
Y2
Abstract:
A driving circuit for driving a piezoelectric bi-morph (1) constituted by joining a pair of piezoelectric elements (1a, 1b) so that their polarzation axes are directed in directions opposite to each other. The driving circuit includes a driving power source (4), a first switch portion (3) through which a common juntion (1c) of the pair of piezoelectric elements (1a, 1 b) is connected to one side of the driving power source (4), with the other terminal (1d) of one piezoelectric element (1a) being connected to the other side of the driving power source (4), and a second switch portion (5) to which the other terminal (1e) of the other piezoelectric element (1b) is connected.
Application Number:
JP13624083U
Publication Date:
June 30, 1989
Filing Date:
September 01, 1983
Export Citation:
International Classes:
B06B1/06; H01H57/00; H01L27/00; H01L41/00; H01L41/04; (IPC1-7): H01H57/00
Next Patent: JPH0122212