Speed control method for an electric motor
US5760553A · kind A · utility
12Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1996 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Apr 10, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A speed control method for controlling an electric motor by varying the supply duration of the motor, comprises the steps of: PA1 initially storing, for a constant speed to be obtained, the curve of the current in the motor as a function of the supply duration; PA1 selecting a supply duration; PA1 measuring the resulting current in the motor; and PA1 correcting the supply duration so that the point defined by the supply duration and the resulting measured current converges towards a point of the curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.