US 11,742,690 B2
Parallel battery charge management
Stefan Jon Kristjansson, Kirkland, WA (US); Yen Ying Lee, Kirkland, WA (US); and Gene R. Obie, Coupeville, WA (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Apr. 16, 2021, as Appl. No. 17/232,906.
Application 17/232,906 is a continuation of application No. 16/456,943, filed on Jun. 28, 2019, granted, now 11,101,680.
Prior Publication US 2021/0234391 A1, Jul. 29, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 7/00 (2006.01); H02J 7/34 (2006.01); H01M 10/48 (2006.01)
CPC H02J 7/342 (2020.01) [H01M 10/48 (2013.01); H02J 7/0014 (2013.01); H02J 7/0063 (2013.01); H02J 7/00712 (2020.01); H02J 7/00714 (2020.01); H02J 7/007182 (2020.01); H02J 7/0013 (2013.01); H02J 7/0047 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of balancing power supplied to a system load by a first battery power source and a second battery power source, the method comprising:
sensing a first current supplied by or supplied to the first battery power source;
changing a control voltage for a voltage converter circuit based on the sensed first current, an input of the voltage converter circuit being coupled to the second battery power source, an output of the voltage converter circuit being electrically coupled to the system load; and
adjusting the voltage converter circuit to modify a charge current supplied from the second battery power source to the first battery power source based on the control voltage.