Patent ID: 11936222
Assignee: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 16:
17. A battery management system comprising:
a plurality of battery modules;
a master controller communicatively coupled to the plurality of battery modules to receive battery measurement data from the plurality of battery modules; and
a charger coupled to the plurality of battery modules;
wherein at least one of the plurality of battery modules comprising:
a battery monitoring circuit to monitor battery cells and to transmit the battery measurement data to the master controller;
an external monitor separate from the battery monitoring circuit to monitor a voltage level of battery cells in the battery module and in response to detection of a failure event based on the monitored voltage level, to disconnect a charging input coupled to the charger; and
a redundant power supply to supply power to the battery monitoring circuit during the failure event, wherein the battery monitoring circuit is powered by battery cells during normal operations.