Control system for ultrasonic motors
US9344012B2 · kind B2 · utility
1Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2013 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | May 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/142
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for controlling an ultrasonic motor coupled to a motor driver circuit, comprises obtaining a position of a first encoder coupled to the ultrasonic motor, calculating an error between the position of the first encoder and a target position, and sending a control signal to the motor driver circuit to control the ultrasonic motor to adjust the position of the first encoder based the calculated error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.