Control of a brushless motor
US8773052B2 · kind B2 · utility
15Cited by
84References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Jan 24, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2209/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of controlling a brushless motor that includes exciting a winding of the motor in advance of predetermined rotor positions by an advance period. The length of the advance period is defined by a waveform that varies periodically with time. Additionally, a control system that implements the method, and a motor system that incorporates the control system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.