Invention Grant
- Patent Title: Coil actuated position sensor with reflected magnetic field
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Application No.: US15606358Application Date: 2017-05-26
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Publication No.: US10996289B2Publication Date: 2021-05-04
- Inventor: Alexander Latham , Claude Fermon , Myriam Pannetier-Lecoeur , Bryan Cadugan
- Applicant: Allegro MicroSystems, LLC , COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
- Applicant Address: US NH Manchester; FR Paris
- Assignee: Allegro MicroSystems, LLC,COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
- Current Assignee: Allegro MicroSystems, LLC,COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
- Current Assignee Address: US NH Manchester; FR Paris
- Agency: Daly, Crowley, Mofford & Durkee, LLP
- Main IPC: G01R33/00
- IPC: G01R33/00 ; G01R33/06 ; G01D5/14 ; H03K17/95 ; G01R33/025 ; H01F5/04
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.
Public/Granted literature
- US20180340989A1 Coil Actuated Position Sensor With Reflected Magnetic Field Public/Granted day:2018-11-29
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