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:
Jul. 27, 2021
Filed:
Aug. 06, 2019
Applicant:
Allegro Microsystems, Llc, Manchester, NH (US);
Inventors:
Hernán D. Romero, Buenos Aires, AR;
Octavio H. Alpago, Buenos Aires, AR;
Assignee:
Allegro MicroSystems, LLC, Manchester, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/09 (2006.01);
U.S. Cl.
CPC ...
G01R 33/098 (2013.01);
Abstract
Methods and apparatus for a TMR-based sensor having a first magnetic field sensing element comprising a bridge having first, second, third, and fourth legs. Legs of the bridge comprise TMR elements with pillars connected to one or more switch matrixes to adjust total resistances of the bridge legs. Equalizing the resistance of the bridge legs can enhance sensor performance.