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:
Oct. 10, 2006
Filed:
Mar. 26, 2004
Lothar Blossfeld, Breitnua, DE;
Lothar Blossfeld, Breitnua, DE;
MICRONAS GmbH, Freiburg, DE;
Abstract
A technique for determining an offset-reduced Hall voltage (Uh), and/or an offset voltage (UH, offset) of a Hall sensor () includes applying a Hall sensor current (I) at first and second taps (a, a, a) of the Hall sensor (), and determining a first Hall voltage (Uh) at third and fourth taps (a, a) displaced from the first and second taps (a, a, a). A second Hall sensor current is applied modified relative to the first, and a second Hall voltage (Uh) is determined. The Hall voltage (Uh) and/or Hall voltage offset (Uh,offset) are determined from the first and second Hall voltages. To compensate any offset present, a second measurement applies the second Hall sensor current I at taps (a, a) that are spatially displaced relative to the first and/or second taps.