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:
Sep. 03, 2024

Filed:

Sep. 15, 2020
Applicant:

Nxp Usa, Inc., Austin, TX (US);

Inventors:

Thierry Dominique Yves Cassagnes, Tournefeuille, FR;

Jérôme Dietsch, Lavernose-Lacasse, FR;

Thomas Mallard, Toulouse, FR;

Assignee:

NXP USA, Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/42 (2006.01); H01M 10/04 (2006.01);
U.S. Cl.
CPC ...
H01M 10/4257 (2013.01); H01M 10/0413 (2013.01); H01M 2010/4271 (2013.01);
Abstract

A multi-cell battery apparatus is provided, according to certain aspects, including a battery with a plurality of voltage-stacked battery cell circuits, a switchable resistive-divider circuit and a control circuit. The control circuit selectively activates the switchable resistive-divider circuits and, in response to the respective switchable resistive-divider circuits being selectively activated, the control circuit measures the controlled-load voltage drops. These aspects are used to allow open load detection without interfering with the cell balancing mechanism and the accuracy of the redundant measurements performed on these pins in a battery management system.


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