Coil actuated position sensor with reflected magnetic field
US10996289B2 · kind B2 · utility
8Cited by
268References
31Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 26, 2017 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | May 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/9525
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic field sensor includes at least one coil responsive to an AC coil drive signal; at least two spaced apart magnetic field sensing elements responsive to a sensing element drive signal and positioned proximate to the at least one coil; and a circuit coupled to the at least two magnetic field sensing elements to generate an output signal of the magnetic field sensor indicative of a difference between a distance of a conductive target with respect to each of the at least two spaced apart magnetic field sensing elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.