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:
Jan. 03, 2023
Filed:
Jan. 16, 2020
Infineon Technologies Ag, Neubiberg, DE;
Andreas Berger, Klagenfurt, AT;
Klaus Hoermaier, Krumpendorf, AT;
Guenter Hofer, St. Oswald, AT;
Stefano Marsili, Faak am See, AT;
Akshay Misra, Munich, DE;
Matthias Rose, Kirchseeon, DE;
Christian Winkler, Wernberg, AT;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A method for measuring a complex impedance of a plurality of battery cells in a battery pack comprises controlling an excitation current through the plurality of battery cells in the battery pack; receiving, in a single common measurement circuit, a plurality of voltage signals corresponding to the plurality of battery cells; measuring the excitation current; and calculating a complex impedance of each of the battery cells in the plurality of battery cells based on the plurality of voltage signals and the measured excitation current in a single measurement cycle using either one analog-to-digital converter (ADC) per battery cell or two matched ADCs per battery cell.