Controller for driving a stepper motor
US9825567B2 · kind B2 · utility
1Cited by
56References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 2015 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | May 6, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P8/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A controller is provided for driving a stepper motor with a magnetic rotor and at least one coil. The controller has a power stage for supplying the at least one coil with current, at least one analog Hall sensor for providing a signal as a function of the position of the magnetic rotor with respect to the Hall sensor, and a feedback line connecting the Hall sensor with the power stage to feed the signal of the Hall sensor back to the power stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.