US 11,990,591 B2
Method for monitoring series-connected battery cells
Robert L. Myers, Austin, TX (US); Alexei Tikhonski, Austin, TX (US); and James P. Novak, Austin, TX (US)
Assigned to Litech Laboratories, Inc., Austin, TX (US)
Filed by LiTech Laboratories, LLC, Austin, TX (US)
Filed on Sep. 13, 2021, as Appl. No. 17/473,933.
Application 17/473,933 is a continuation in part of application No. 16/471,961, granted, now 11,121,415, previously published as PCT/US2017/045468, filed on Aug. 4, 2017.
Claims priority of provisional application 62/456,371, filed on Feb. 8, 2017.
Prior Publication US 2021/0408615 A1, Dec. 30, 2021
Int. Cl. H01M 10/48 (2006.01); G01R 31/385 (2019.01)
CPC H01M 10/482 (2013.01) [G01R 31/385 (2019.01); H01M 10/486 (2013.01); H01M 10/488 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for monitoring a plurality of battery cells in a multi-cell battery assembly, comprising:
receiving a voltage measurement from each of the plurality of battery cells at the analog front end;
receiving an output from an analog front end, wherein the output from the analog front end is a data signal produced as a function of received voltage measurements from each of the plurality of battery cells;
producing a digital signal representing a voltage value associated with one of the plurality of battery cells having a reduced capacity relative to the remaining battery cells in the multi-cell battery assembly;
converting the digital signal representing a voltage value to an analog voltage signal; and
processing the analog voltage signal by a fuel gauge.