Invention Grant
- Patent Title: Magnetic field sensor having at least two CVH elements and method of operating same
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Application No.: US15892843Application Date: 2018-02-09
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Publication No.: US10386427B1Publication Date: 2019-08-20
- Inventor: Andreas P. Friedrich , Andrea Foletto , Nicolas Yoakim
- Applicant: Allegro MicroSystems, LLC
- Applicant Address: US NH Manchester
- Assignee: Allegro MicroSystems, LLC
- Current Assignee: Allegro MicroSystems, LLC
- Current Assignee Address: US NH Manchester
- Agency: Daly, Crowley, Mofford & Durkee, LLP
- Main IPC: G01B7/30
- IPC: G01B7/30 ; G01R33/07 ; G01R33/00

Abstract:
A magnetic field sensor for sensing a direction of a magnetic field in an x-y plane, can include a first plurality of magnetic field sensing elements operable to generate a first plurality of magnetic field signals and a second plurality of magnetic field sensing elements operable to generate a second plurality of magnetic field signals. The magnetic field sensor can also include at least one sequence switches circuit operable to select ones of the first plurality of magnetic field signals and to select ones of the second plurality of magnetic field signals. The magnetic field sensor can also include a processing circuit operable to combine the selected ones of the first plurality of magnetic field signals and the selected ones of the second plurality of magnetic field signals to generate at least one sequential signal and to process the at least one sequential signal to generate an x-y angle signal indicative of a direction of the magnetic field in the x-y direction. An associated method is described.
Public/Granted literature
- US20190250222A1 Magnetic Field Sensor Having at Least Two CVH Elements and Method of Operating Same Public/Granted day:2019-08-15
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