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:
May. 27, 2025

Filed:

May. 20, 2019
Applicant:

Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;

Inventor:

Jan Philipp Schmidt, Holzmaden, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/385 (2019.01); G01R 33/36 (2006.01); H01M 10/48 (2006.01); H01M 50/569 (2021.01);
U.S. Cl.
CPC ...
G01R 31/385 (2019.01); G01R 33/3628 (2013.01); H01M 10/48 (2013.01); H01M 50/569 (2021.01);
Abstract

An electrical circuit that enables a determination of a first voltage present inside a battery cell includes an oscillating circuit having a coil and a component, the electrical capacity of which depends on the voltage present on the component, and a reference electrode. The component can be a varactor diode. A method for determining a first voltage which is present within the battery cell and an arrangement having an additional electrical circuit outside the battery cell housing for reading out the first voltage present inside a battery cell are also provided.


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