DYNAMIC POWER BUDGET ALLOCATION

摘要

A dynamic power budget allocation system includes a plurality of powered subsystems. A power system controller is coupled to the plurality of powered subsystems. The power system controller is operable, for each of a plurality of time intervals, to retrieve power usage data from each of the plurality of subsystems during a current time interval. The power system controller is then operable to project power requirements for the plurality of subsystems for a subsequent time interval using the power usage data. The power system controller is then operable to determine at least one power setting for at least one of the plurality of subsystems using the power requirements, and program the at least one of the plurality of subsystems with the at least one power setting. Each powered subsystem may include a voltage regulator that provides the power usage data and is programmed with the at least one power setting.

主权项

1. A dynamic power budget allocation system, comprising:
a plurality of powered subsystems; and a power system controller that is coupled to the plurality of powered subsystems, wherein the power system controller is configured, for each of the plurality of powered subsystems during each of a plurality of time intervals, to:
retrieve, during a current time interval while that powered subsystem operates in a current operating mode, current power usage data from that powered subsystem;determine, for a subsequent time interval via immediate transition by that powered subsystem from the current operating mode, a subsequent operating mode that is available to that powered subsystem;retrieve, for the subsequent operating mode that is available to that powered subsystem, a peak power requirement;determine, for the subsequent time interval using the current power usage data and the peak power requirement for the subsequent operating mode, a subsequent power requirement for that powered subsystem that provides an upper bound on a subsequent power demand of that powered subsystem in the subsequent time interval; wherein at least one of the subsequent operating modes determined by the power system controller for a respective powered subsystem during a respective one of the plurality of time intervals is less than a maximum operating mode that causes that powered subsystem to operate at a maximum peak power requirement, and wherein the power system controller is configured to:
determine, using the subsequent power requirements, at least one power setting for at least one of the plurality of powered subsystems; andprogram the at least one of the plurality of powered subsystems with the at least one power setting.