US 12,259,768 B2
Selection of power supply for a host system
Aruni P. Nelson, Folsom, CA (US); Udaya Natarajan, El Dorado Hills, CA (US); and Kannappan Rajaraman, Karnataka (IN)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Sep. 23, 2021, as Appl. No. 17/448,597.
Prior Publication US 2023/0111694 A1, Apr. 13, 2023
Int. Cl. G06F 1/26 (2006.01); G06F 1/3203 (2019.01); G06F 1/3206 (2019.01); G06F 1/3234 (2019.01); G06F 1/3296 (2019.01); G06F 13/10 (2006.01)
CPC G06F 1/263 (2013.01) [G06F 1/266 (2013.01); G06F 1/3203 (2013.01); G06F 1/3206 (2013.01); G06F 1/3243 (2013.01); G06F 1/3296 (2013.01); G06F 13/102 (2013.01); Y02D 10/00 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A host system comprising:
a processor;
a bus interface to connect to a peripheral device; and
a power controller to:
determine whether the processor has entered a reduced power mode;
determine, via one or more bus messages, whether charging is to be performed for a battery of the peripheral device; and
in response to a determination that the processor has entered the reduced power mode and that charging is not to be performed for the battery of the peripheral device, switch from a first power supply to a second power supply as an active power source of the host system.