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:
Dec. 01, 2020

Filed:

Oct. 12, 2017
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Stefano Marsili, Faak am See, AT;

Michael Kropfitsch, Koettmannsdorf, AT;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 10/42 (2006.01); G01R 31/3842 (2019.01); H01M 10/48 (2006.01);
U.S. Cl.
CPC ...
H02J 7/007 (2013.01); G01R 31/3842 (2019.01); H01M 10/42 (2013.01); H01M 10/425 (2013.01); H01M 10/48 (2013.01);
Abstract

A method is disclosed, which includes driving an alternating input current into a battery, measuring a voltage across the battery by a first measurement circuit to obtain a voltage measurement value, measuring a current through the battery by a second measurement circuit to obtain a current measurement value, and measuring a current through the battery using the first measurement circuit to obtain a further current measurement value. Further, the method includes calculating an impedance of the battery based on the current measurement value, the further current measurement value, and the voltage measurement value.


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