Method of controlling electric motors, corresponding device and motor
US10476414B2 · kind B2 · utility
0Cited by
3References
25Claims
0Family size
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Key dates
| Filing date | Dec 13, 2016 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Dec 13, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driving circuit for an electric motor including multiple windings includes a sensing circuit to sense motor winding currents. A motor rotation angle signal is generated from the sensed currents and motor control voltages are generated as a function of the motor rotation angle signal. The motor windings are driven with motor drive voltages obtained by injecting into the motor control voltages injection pulses. The sensed currents include both torque components and injection components. The motor rotation angle signal is generated as a function of the injection components of the sensed currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.