Method for the commutation of a polyphase permanent magnet motor
US6326752A · kind A · utility
80Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Dec 24, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/182
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The method serves the commutation of an electrically commutated brushless, polyphase permanent magnet motor. The commutation angle, i.e. the angle from the zero crossing of the BEMF signal up to the reapplication of the voltage to the same winding is determined by the angle which results when the winding phase current has reached zero until the zero crossing of the BEMF signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.