Title:
駆動制御装置及び超音波モータシステム
Document Type and Number:
Japanese Patent JP7448041
Kind Code:
B2
Abstract:
A drive control device is provided that drives an ultrasonic motor element including a vibrating body and piezoelectric elements provided on the vibrating body. The drive control device includes a speed detector that detects a driving speed of the ultrasonic motor element, a controller that sets drive conditions of the ultrasonic motor element, and a drive circuit unit that applies a drive voltage to the piezoelectric elements based on the drive conditions set by the controller. Moreover, the controller sets the drive conditions of the ultrasonic motor element based on the accumulated operation time for each driving speed of the ultrasonic motor element.
Inventors:
Mitsushiro Terasawa
▲高▼田 政明
Takahito Kushima
Yuzo Mizushima
Katsuhisa Higashiyama
▲高▼田 政明
Takahito Kushima
Yuzo Mizushima
Katsuhisa Higashiyama
Application Number:
JP2022581296A
Publication Date:
March 12, 2024
Filing Date:
January 21, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H02N2/14
Domestic Patent References:
| JP2020182328A | ||||
| JP2006101579A | ||||
| JP2003339175A |
Attorney, Agent or Firm:
Patent Attorney Osaka Front Patent Office