US 12,142,953 B2
Battery charging protection and health management system
Baifeng Chen, San Jose, CA (US); Xingqun Li, Santa Clara, CA (US); Di Zhao, Santa Clara, CA (US); and Chao Ma, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Feb. 8, 2022, as Appl. No. 17/650,322.
Prior Publication US 2023/0253802 A1, Aug. 10, 2023
Int. Cl. H02J 7/00 (2006.01)
CPC H02J 7/0013 (2013.01) [H02J 7/0031 (2013.01); H02J 7/005 (2020.01); H02J 2207/20 (2020.01)] 21 Claims
OG exemplary drawing
 
10. A battery charging protection and health management circuit comprising:
a plurality of primary battery protection switches arranged in complementary pairs; and
a battery management controller;
wherein the battery management controller selectively operates the plurality of primary battery protection switches to couple a plurality of cells in:
a parallel configuration in which at least two of the plurality of cells are coupled to a battery bus so as to charge or discharge in parallel;
a series configuration in which at least two of the plurality of cells are coupled to the battery bus so as to charge or discharge in series; and
an isolated configuration in which at least one of the plurality of cells is coupled to the battery bus and at least one of the plurality of cells is disconnected from the battery bus.