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:
Aug. 06, 2024
Filed:
Feb. 14, 2022
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventor:
Takashi Naiki, Kyoto, JP;
Assignee:
ROHM CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02N 2/06 (2006.01); G01B 7/16 (2006.01); H10N 30/20 (2023.01);
U.S. Cl.
CPC ...
H02N 2/06 (2013.01); G01B 7/18 (2013.01); H10N 30/20 (2023.02);
Abstract
A control system includes: a piezoelectric element having a deformation amount that varies according to a magnitude of a drive voltage applied to the piezoelectric element; a base on which the piezoelectric element is arranged; a deformation sensor configured to detect a displacement of the base caused by deformation of the piezoelectric element and output the displacement as a displacement signal; and a drive device configured to apply the drive voltage to the piezoelectric element while adjusting the magnitude of the drive voltage so as to reduce a difference between a value of the displacement signal and a value of a setting signal.