Control of brushless motor
US8664905B2 · kind B2 · utility
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15References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2010 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Nov 6, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for generating a signal useful in the commutation of current through windings of brushless direct current electric motors are provided. Such methods comprises detecting a kickback pulse in a non-driven winding of a motor; detecting a rotor-induced zero crossing in the non-driven winding following the detection of the kickback pulse; and using the detection of the rotor-induced zero crossing to generate a signal useful in commutation of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.