Motor current shaping
US7521883B1 · kind B1 · utility
1Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2005 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Aug 2, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is disclosed for generating a drive signal that is applied to a coil in a motor. The drive signal is applied during a period (commutation period) between a commutation event and the immediately following commutation event when the coil is energized. The drive signal comprises pulses which vary over the duration of the commutation period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.