US 11,669,145 B2
Power management unit
Shawn Searles, Austin, TX (US); Preethi Damodaran, Germering (DE); Ofir Gilad, Germering (DE); Michele De Fazio, Germering (DE); Inder M. Sodhi, Palo Alto, CA (US); Enrico Zanetti, Cascina (IT); Olivier Girard, Munich (DE); Lothar Münch, Germering (DE); Andrea Barsanti, Lido di Camaiore (IT); and Andrea Lazzeri, Lido di Camaiore (IT)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 15, 2021, as Appl. No. 17/476,186.
Prior Publication US 2023/0080624 A1, Mar. 16, 2023
Int. Cl. G06F 1/32 (2019.01); G06F 1/324 (2019.01); G06F 1/3296 (2019.01); G06F 1/3234 (2019.01)
CPC G06F 1/324 (2013.01) [G06F 1/3296 (2013.01); G06F 1/3275 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a host device configured to send, via a first communication bus, a first command that specifies a first power resource using a first address within a first common address space for plurality of power resources;
a first power circuit group that includes one or more branch power circuits arranged hierarchically with one or more leaf power circuits;
wherein a first branch power circuit of the one or more branch power circuits is configured to:
map, using a resource map, the first power resource to a first physical resource associated with a first leaf power circuit of the one or more leaf power circuits;
relay, based on the first address, and via a second communication bus, the first command to the first leaf power circuit; and
wherein the first leaf power circuit is configured to:
execute the first command;
generate a particular voltage level on a regulated power supply node coupled to the host device; and
adjust, based on the first command, an operating parameter of the first leaf power circuit associated with the first physical resource.