Electric machine
US5894211A · kind A · utility
6Cited by
11References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1997 |
| Grant date | Apr 13, 1999 |
| Priority date | — |
| Expiry date | Nov 14, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/0925
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric machine includes a rotor and a stator, a rotor position transducer being provided to detect the position of the rotor relative to the stator. Phase windings are sequentially energizable to drive the rotor. The rotor position transducer is powered by the energization of one or more windings thus removing the need for an additional power supply for the rotor position transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.