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.

公开(公告)号：US20240427391A1

公开(公告)日：2024-12-26

申请号：US18438782

申请日：2024-02-12

Applicant: Apple Inc.

Inventor： Inder M. Sodhi ,  Achmed R. Zahir ,  Carmel Yamberger ,  Daniele Perretta ,  Jan Krellner ,  Ron Neuman ,  James S. Ismail ,  Keith Cox

IPC: G06F1/20 ,  G06F1/28 ,  G06F11/30

Abstract: Techniques are disclosed relating to electromigration control implemented by a power management unit. In some embodiments, the power management unit itself is configured to monitor operating conditions, implement control for one or more electromigration loops, and send reduction alerts, via an inter-chip interconnect, to the processor circuitry it powers. In some embodiments, the power management unit implements both thermal and electromigration control loops. Disclosed techniques may advantageously reduce or avoid electromigration issues, potentially with reduced impact on processor performance relative to traditional techniques.

公开(公告)号：US11934240B2

公开(公告)日：2024-03-19

申请号：US17664000

申请日：2022-05-18

Applicant: Apple Inc.

Inventor： Inder M. Sodhi ,  Achmed R. Zahir ,  Carmel Yamberger ,  Daniele Perretta ,  Jan Krellner ,  Ron Neuman ,  James S. Ismail ,  Keith Cox

IPC: G06F1/28 ,  G06F1/20 ,  G06F11/30

CPC classification number: G06F1/206 ,  G06F1/28 ,  G06F11/3058

Abstract: Techniques are disclosed relating to thermal control implemented by a power management unit. In some embodiments, the power management unit itself is configured to monitor thermal conditions, implement control for one or more thermal loops, and send reduction alerts, via an inter-chip interconnect, to the processor circuitry it powers. In some embodiments, the power management unit implements both thermal and electromigration control loops. Disclosed techniques may advantageously reduce or avoid thermal issues, potentially with reduced impact on processor performance relative to traditional techniques.

公开(公告)号：US20230376091A1

公开(公告)日：2023-11-23

申请号：US17664000

申请日：2022-05-18

Applicant: Apple Inc.

Inventor： Inder M. Sodhi ,  Achmed R. Zahir ,  Carmel Yamberger ,  Daniele Perretta ,  Jan Krellner ,  Ron Neuman ,  James S. Ismail ,  Keith Cox

IPC: G06F1/20 ,  G06F1/28 ,  G06F11/30

CPC classification number: G06F1/206 ,  G06F1/28 ,  G06F11/3058

Abstract: Techniques are disclosed relating to thermal control implemented by a power management unit. In some embodiments, the power management unit itself is configured to monitor thermal conditions, implement control for one or more thermal loops, and send reduction alerts, via an inter-chip interconnect, to the processor circuitry it powers. In some embodiments, the power management unit implements both thermal and electromigration control loops. Disclosed techniques may advantageously reduce or avoid thermal issues, potentially with reduced impact on processor performance relative to traditional techniques.