The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 1986
Filed:
Aug. 31, 1984
Applicant:
Inventors:
Assignee:
Omron Tateisi Electronics Co., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310316 ; 310317 ; 310332 ; 200181 ;
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.