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:
Mar. 22, 2022
Filed:
Feb. 03, 2020
Infineon Technologies Ag, Neubiberg, DE;
Infineon Technologies AG, Neubiberg, DE;
Abstract
Various examples relate to techniques of monitoring a reliability of a cell-impedance measurement of a battery cell. In one example, a device includes a first interface configured to inject an AC excitation current into a battery cell and a shunt resistor coupled in parallel to the battery cell. The device also includes a second interface configured to inject an AC test current into the shunt resistor. The device also includes analog-to-digital converters configured to measure a cell voltage across the battery cell associated with the AC excitation current, a shunt voltage across the shunt resistor associated with the AC excitation current and the shunt voltage across the shunt resistor associated with the AC test current.