The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2023
Filed:
Jul. 01, 2022
Allegro Microsystems, Llc, Manchester, NH (US);
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
Alexander Latham, Harvard, MA (US);
Claude Fermon, Gif-sur-Yvette, FR;
Jason Boudreau, Exeter, NH (US);
Myriam Pannetier-Lecoeur, Bures sur Yvette, FR;
Bryan Cadugan, Bedford, NH (US);
Hernán D. Romero, Buenos Aires, AR;
Allegro MicroSystems, LLC, Manchester, NH (US);
Commissariat à l'énergie atomique et aux énergies alternatives, Paris, FR;
Abstract
A magnetic field sensor includes at least one coil responsive to an AC coil drive signal; at least one magnetic field sensing element responsive to a sensing element drive signal and configured to detect a directly coupled magnetic field generated by the at least one coil and to generate a magnetic field signal in response to the directly coupled magnetic field; a processor responsive to the magnetic field signal to compute a sensitivity value associated with detection of the directly coupled magnetic field and substantially independent of a reflected magnetic field reflected by a conductive target disposed proximate to the at least one magnetic field sensing element; and an output signal generator configured to generate an output signal of the magnetic field sensor indicative of the reflected magnetic field.