Magnetic field sensors and output signal formats for magnetic field sensors
US11686597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2019 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Oct 4, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and a method provide an output signal indicative of a speed of rotation and/or a direction of movement of a ferromagnetic object. The sensor includes at least one magnetic field sensing element configured to generate a magnetic field signal in response to a magnetic field associated with an object. The sensor includes a detector configured to generate a detector signal having edges occurring in response to a comparison of the magnetic field signal and the threshold signal. The sensor includes an output circuit configured to generate an output signal having a first format when a characteristic of the magnetic field signal is within a first range and having a second format different than the first format when the characteristic of the magnetic field signal is within a second range, different than the first range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.