Motor controller with enhanced noise immunity unbuffered hall sensors
US7262570B2 · kind B2 · utility
6Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Mar 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/032
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus of interfacing a Hall sensor to a commutation circuit comprises receiving output signals from the Hall sensor; detecting when the Hall sensor output signals are within a predetermined range; generating commutation output signals when the Hall sensor output signals are in a predetermined state for a predetermined period of time; and locking out a change in the commutation output signals for a second predetermined period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.