Motor control
US6184636A · kind A · utility
5Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Nov 10, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/17
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control system current (DC) motor in which driving signals are supplied to the stator windings of the motor in accordance with a measurement of the rotational speed of the motor and the position of the rotor of the motor. The speed measurement is obtained by combining a first signal representing the rotational speed of the motor derived from a measurement of the back-EMF developed in the stator windings of the motor and a second signal representing the rotational speed of the motor derived from the output of a sensor which senses the position of the rotor of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.