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:
Apr. 25, 2017
Filed:
Apr. 14, 2016
Applicant:
Everspin Technologies, Inc., Chandler, AZ (US);
Inventors:
Anuraag Mohan, Fremont, CA (US);
Phillip G. Mather, Phoenix, AZ (US);
Assignee:
EVERSPIN TECHNOLOGIES, INC., Chandler, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 33/09 (2006.01); G01R 33/00 (2006.01); G01R 17/10 (2006.01);
U.S. Cl.
CPC ...
G01R 33/098 (2013.01); G01R 33/0011 (2013.01); G01R 33/093 (2013.01); G01R 33/096 (2013.01); G01R 17/10 (2013.01);
Abstract
In one embodiment, a TMR field sensor utilizes existing one or more self-test current lines in a configuration to extend magnetic field measurement range without sacrificing measurement sensitivity. The self-test current lines are energized to facilitate magnetic field measurement when the measured magnetic field reaches a threshold. The magnetic field created by self-test coil opposes an external magnetic field being measured to keep the net magnetic field within a desired range where the magnetic field sensor has linear output and desired sensitivity.