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:
Dec. 14, 2021
Filed:
Aug. 28, 2019
Allegro Microsystems, Llc, Manchester, NH (US);
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
Rémy Lassalle-Balier, Bures sur Yvette, FR;
Claude Fermon, Orsay, FR;
Damien Dehu, La-Ville-du-Bois, FR;
Kamil Akmaldinov, Bagneux, FR;
ALLEGRO MICROSYSTEMS, LLC, Manchester, NH (US);
COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, Paris, FR;
Abstract
In one aspect, a magnetic field angle sensor includes a bridge structure that include a sine bridge configured to generate a sinusoidal signal indicative of a magnetic field along a first axis and a cosine bridge configured to generate a cosinusoidal signal indicative of the magnetic field along a second axis that is orthogonal with respect to the first axis. One of the sine bridge or the cosine bridge includes a first set of at least two magnetoresistance elements, a second set of at least one magnetoresistance element, a third set of at least one magnetoresistance element and a fourth set of at least one magnetoresistance element. An average reference direction of the first set of at least two magnetoresistance elements is equal to an average reference direction of the third set of at least one magnetoresistance element. An average reference direction of the second set of at least one magnetoresistance element is equal to an average direction angle of the fourth set of at least one magnetoresistance element.