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:
Nov. 19, 2019
Filed:
Jan. 30, 2017
Applicant:
Infineon Technologies Ag, Neubiberg, DE;
Inventors:
Assignee:
Infineon Technologies AG, Neubiberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/389 (2019.01); H01M 10/0525 (2010.01); G01R 31/36 (2019.01); H01M 10/48 (2006.01); G01R 31/382 (2019.01); G01K 7/16 (2006.01); G01K 7/42 (2006.01);
U.S. Cl.
CPC ...
G01R 31/389 (2019.01); G01K 7/16 (2013.01); G01K 7/42 (2013.01); G01R 31/3648 (2013.01); G01R 31/382 (2019.01); H01M 10/0525 (2013.01); H01M 10/486 (2013.01); G01K 2217/00 (2013.01); H01M 2220/20 (2013.01);
Abstract
A method and a temperature detection circuit are disclosed. An example of the method includes driving an alternating current with a first frequency into a battery and detecting an imaginary part of a battery impedance at the first frequency; driving an alternating current with a second frequency different from the first frequency into the battery and detecting an imaginary part of the battery impedance at the second frequency; and calculating an intercept frequency at which the imaginary part equals a predefined value at least based on the imaginary part obtained at the first frequency and the imaginary part obtained at the second frequency.