Circuits and methods for processing signals generated by a plurality of magnetic field sensing elements
US9285438B2 · kind B2 · utility
4Cited by
51References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2011 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Nov 1, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/066
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Circuits and methods provide an ability to track a direction of a magnetic field, and, more particular, to track a direction of a rapidly rotating magnetic field. The circuits and methods use a plurality of magnetic field sensing elements, for example, as may be embodied in a circular vertical Hall (CVH) sensing element. However, the circuits and methods can track the direction of the sensed magnetic field by processing at any time fewer than all of the plurality of magnetic field sensing elements, for example, one or two of the plurality of magnetic field sensing elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.