公开(公告)号：US20250085765A1

公开(公告)日：2025-03-13

申请号：US18465785

申请日：2023-09-12

Applicant: Apple Inc.

Inventor： Chee Lim Nge ,  Peter Hyungrok Sung ,  Douglas A. MacKay ,  Diwakar N. Tundlam ,  Jun Hou ,  Tu Le ,  Vishal Gupta ,  Ning Tian ,  Daniele Perretta ,  Bo Zhou ,  Michael Eng

IPC: G06F1/3234 ,  G01R31/387 ,  G06F1/3218

Abstract: Systems and methods are disclosed for allocating and distributing power management budgets for subsystems of a computer system. For each of a plurality of subsystems, a power management system may generate a long-term power budget and a closed-loop power budget, and then determine a final power budget to provide to the subsystem, e.g., by applying a min function, a weighted sum, or some other function to the long-term power budget and the closed-loop power budget. The closed-loop power budget is determined based on observations of power draw over a past period of time, and therefore cannot respond immediately to large changes in power. The long-term power budget is generated based on a prediction of battery capability over an upcoming window of time, and may therefore provide a power cap before the system is under duress.