US 11,942,609 B2
Reduced power wireless battery management system
Taraka Rama Chandra Reddy Kambham, Freising (DE); Ariton Xhafa, Plano, TX (US); Tahar Allag, Irving, TX (US); and Mario Mlynek, Munich (DE)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Oct. 29, 2021, as Appl. No. 17/515,002.
Prior Publication US 2023/0139517 A1, May 4, 2023
Int. Cl. H01M 10/42 (2006.01); H01M 10/48 (2006.01); H04B 1/38 (2015.01)
CPC H01M 10/4257 (2013.01) [H01M 10/482 (2013.01); H01M 2010/4271 (2013.01); H04B 1/38 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a battery pack including a first battery module, a second battery module, and a busbar coupled to the first battery module and the second battery module;
a battery management controller, including a first wireless transceiver; and
a battery monitor coupled to the first battery module and to the busbar, the battery monitor including:
monitoring circuitry configured to receive a first indication of a parameter of the first battery module;
a second wireless transceiver configured to provide the first indication to the battery management controller via a wireless connection to the first wireless transceiver; and
a busbar voltage circuit configured to receive a second indication of a voltage across the busbar, and, responsive to the second indication being greater than a voltage threshold, provide a first signal to the second wireless transceiver to cause the second wireless transceiver to transition from a lower-power state to a higher-power state.