Driving apparatus of vibration type actuator
US6100622A · kind A · utility
25Cited by
17References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1998 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Dec 7, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/163
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control apparatus for a vibration type actuator includes a first integral means for integrating a difference between a detected driving speed state of the actuator and a target speed state of the actuator, and a second integral means for integrating the integral value of the first integral means, where a drive operation of the actuator is controlled with a periodic signal varied in accordance with the sum of the integral values of the first and second integral means, thereby accurately controlling the target speed and position of a moving member driven by the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.