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US 9,958,921 B2Granted
Power management to change power limits based on device skin temperature
AssigneeAdvanced Micro Devices, Inc.
InventorsAshish Jain, Benjamin David Bates, Ali Akbar Merrikh, Samuel David Naffziger, Steven Frederick Liepe, Madhu Saravana Sibi Govindan
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Abstract
A method includes controlling a power limit of a computing system based on a determined skin temperature of at least one location on an outer surface of a device housing the computing system. A processor includes a processing unit and a power management controller to control a power limit of the processing unit based on a determined skin temperature of at least one location on an outer surface of a device housing the processor.
Claims19
A method, comprising:
- determining a skin temperature at a location at an outer surface of a device housing a computing system using a skin temperature model that models skin temperature at least in part as a function of heat power generated by a plurality of components of the computing system, wherein determining the skin temperature includes:
- estimating heat power generated by each component of the plurality of components based on an activity metric associated with the component;
- identifying an application type for an application executing on the device;
- determining an interactivity metric for the application based on the application type, the interactivity metric associated with an amount of user interactivity with the device;
- determining an interactivity adjustment factor based on the interactivity metric;
- and
- summing contributions of the heat power of each component of the plurality of components and the interactivity adjustment factor to determine the skin temperature at the location;
- and
- controlling a power limit of the computing system based on the skin temperature.
6 more elements
A processor, comprising:
- a processing unit;
- and
- a power management controller to:
- determine a skin temperature at a location at an outer surface of a device housing the processor using a skin temperature model that models skin temperature at least in part as a function of heat power generated by a plurality of components of the device, wherein the power management controller is to determine the skin temperature by:
- estimating heat power generated by each component of the plurality of components based on an activity metric associated with the component;
- identifying an application type for an application executing on the device;
- determining an interactivity metric for the application based on the application type, the interactivity metric associated with an amount of user interactivity with the device;
- determining an interactivity adjustment factor based on the interactivity metric;
- and
- summing contributions of the heat power of each component of the plurality of components and the interactivity adjustment factor to determine the skin temperature at the location;
- and
- control a power limit of the processing unit based on the skin temperature.
9 more elements
Dependencies are inferred from the claim text.