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.

Date of Patent:
Mar. 31, 2020

Filed:

Dec. 15, 2017
Applicant:

Tdk-micronas Gmbh, Freiburg, DE;

Inventors:

Timo Kaufmann, Waldkirch-Suggental, DE;

Joerg Franke, Freiburg, DE;

Assignee:

TDK-Micronas GmbH, Freiburg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/00 (2006.01); G01R 35/00 (2006.01); G01R 33/07 (2006.01);
U.S. Cl.
CPC ...
G01R 33/0035 (2013.01); G01R 33/07 (2013.01); G01R 35/005 (2013.01);
Abstract

A calibration method for a Hall sensor having a Hall sensitive layer with four electrical contacts and a first field plate, wherein, at a first temperature and at a first magnetic flux density, a resistance value of the Hall sensitive layer is determined for each of at least three different field plate voltages present at the field plate, a calibration curve is produced from the at least three resistance values, a deviation value of the calibration curve is determined from a reference calibration curve, and the field plate voltage that is present at the first field plate or an operating voltage that is present at the sensitive layer is readjusted by a correction value corresponding to the deviation value.


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