Apparatus for and method of driving motor to move object at a constant velocity
US6949896B2 · kind B2 · utility
29Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2003 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | Dec 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41184
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A drive control method includes detecting an angular displacement of a rotor driven by a pulse motor, calculating a difference between the detected angular displacement and a preset target value of the angular displacement, and calculating a drive pulse frequency of a drive pulse signal used to drive the pulse motor. The pulse motor is driven by the drive pulse signal having the drive pulse frequency to allow the rotor at a constant angular velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.