Patent · US Active

Magnetic field sensor to detect direction of angular rotation of a rotating magnetic structure, speed of the rotating magnetic structure or fault

US10480957B2 · kind B2 · utility

8Cited by

15References

52Claims

0Family size

Assignee

Allegro MicroSystems, LLC · US

Inventors

Thomas Kerdraon · Lenzkirch, DE
Gary T. Pepka · Pembroke, US
Dominikus Maisl · Spraitbach, DE
Manfred Busch · Dachau, DE

Key dates

Filing date	Jul 20, 2017
Grant date	Nov 19, 2019
Priority date	—
Expiry date	Oct 7, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/091
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In one aspect, an integrated circuit (IC) includes a magnetic field sensor to detect speed and direction of angular rotation of a rotating magnetic structure. The magnetic field sensor includes at least two magnetic field sensing elements configured to sense changes in a magnetic field caused by rotation of the magnetic structure. The IC also includes an output port configured to provide an output signal of the magnetic field sensor. The output signal indicates the angular direction and one of the speed or a fault.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.