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. 05, 2023
Filed:
Nov. 29, 2019
Crocus Technology SA, Grenoble, FR;
Andrey Timopheev, Vif, FR;
Romain Foissac, Grenoble, FR;
CROCUS TECHNOLOGY SA, Grenoble, FR;
Abstract
A magnetic sensing circuit includes a circuit portion including: a main half-bridge including series-connected main tunnel magnetoresistive sensor elements TMRand TMR; a first auxiliary half-bridge connected in parallel to the main half-bridge and including series-connected auxiliary tunnel magnetoresistive sensor elements TMRand TMRwith an output voltage emerging from the connection between TMRand TMRand between TMRand TMR; wherein a reference magnetization of the magnetoresistive sensor element TMRand TMRare respectively oriented substantially antiparallel with respect to a reference magnetization of the magnetoresistive sensor element TMRand TMR; and wherein said first auxiliary half-bridge has a sensing axis that differs from the sensing axis of the main half bridge by an angle of about 180°/n, where n is the harmonic number to be canceled. The magnetic sensing circuit allows for sensing of external magnetic fields having high magnitude, with reduced angular error.