US 12,136,840 B2
Device, battery and system to control battery power
Muhamad Ridzuan Azizan, Penang (MY); Kow Chee Chong, Penang (MY); Macwien Krishnamurhti, Penang (MY); Wai Mun Lee, Penang (MY); Chen Kok Yeoh, Penang (MY); and Yik Chuang Joseph Ting, Penang (MY)
Assigned to MOTOROLA SOLUTIONS, INC., Chicago, IL (US)
Filed by MOTOROLA SOLUTIONS, INC., Chicago, IL (US)
Filed on Dec. 24, 2021, as Appl. No. 17/561,779.
Prior Publication US 2023/0208163 A1, Jun. 29, 2023
Int. Cl. H01M 10/46 (2006.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 10/48 (2006.01); H01M 50/298 (2021.01); H02J 7/00 (2006.01)
CPC H02J 7/0036 (2013.01) [H01M 10/0525 (2013.01); H01M 10/425 (2013.01); H01M 10/46 (2013.01); H01M 10/48 (2013.01); H01M 50/298 (2021.01); H02J 7/00032 (2020.01); H02J 7/0047 (2013.01); H01M 2220/30 (2013.01); H02J 2207/20 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A system comprising:
a battery, a battery-powered device, and an interface therebetween comprising battery contacts and a data interface,
the battery comprising:
a cell;
a low-power circuit to output power, from the cell, to the battery-powered device via the battery contacts;
a high-power circuit to output a higher power to the battery contacts, relative to the low-power circuit;
at least one switch to connect and disconnect the high-power circuit to the battery contacts, the low-power circuit connected to the battery contacts when the at least one switch disconnects the high-power circuit from the battery contacts; and
a voltage detector to: detect a battery voltage on the battery contacts; detect, from the battery-powered device, an output voltage on the data interface; when the output voltage is greater than the battery voltage, control the at least one switch to connect the high-power circuit to the battery contacts; and when the output voltage is below the battery voltage, control the at least one switch to disconnect the high-power circuit from the battery contacts,
the battery-powered device comprising:
voltage step-up circuitry to: receive, on the battery contacts, power from the low-power circuit at the battery voltage; and output the output voltage, greater than the battery voltage, on the data interface for detection by the voltage detector.