Method and apparatus for information handling system sleep regulation
First Claim
1. An information handling system comprising:
- a microprocessor;
a storage coupled to said microprocessor;
a plurality of devices operatively connected to said microprocessor, said plurality of devices further being operatively connected to a run voltage power rail and configured to operate in a run mode in response to a run voltage Vrun applied to the run voltage power rail;
a sleep regulator configured to provide a sleep voltage Vsleep output; and
a power management controller, the power management controller configured to determine a power savings sleep voltage for a run/sleep mode power management condition and to control the sleep power voltage output of said sleep regulator according to the power savings sleep voltage, said power management controller further configured to enable select ones of the plurality of devices to be operatively disconnected from the Vrun power rail and connected to the sleep voltage Vsleep output, wherein devices operatively connected to the sleep voltage Vsleep output operate in a sleep power mode.
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Accused Products
Abstract
An information handling system includes a microprocessor, a storage, a plurality of devices operatively connected to said microprocessor and a run voltage rail, a sleep regulator, and a power management controller. The plurality of devices are further operatively connected to a run voltage power rail to operate in a run mode in response to a run voltage Vrun applied to the run voltage power rail. The sleep regulator provides a sleep voltage Vsleep output. Lastly, the power management controller determines a power savings sleep voltage for a run/sleep mode power management condition and controls the sleep power voltage output of the sleep regulator according to the power savings sleep voltage. The power management controller is further configured to enable select ones of the plurality of devices to be operatively disconnected from the Vrun power rail and connected to the sleep voltage Vsleep output, wherein devices operatively connected to the sleep voltage Vsleep output operate in a sleep power mode.
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Citations
23 Claims
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1. An information handling system comprising:
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a microprocessor;
a storage coupled to said microprocessor;
a plurality of devices operatively connected to said microprocessor, said plurality of devices further being operatively connected to a run voltage power rail and configured to operate in a run mode in response to a run voltage Vrun applied to the run voltage power rail;
a sleep regulator configured to provide a sleep voltage Vsleep output; and
a power management controller, the power management controller configured to determine a power savings sleep voltage for a run/sleep mode power management condition and to control the sleep power voltage output of said sleep regulator according to the power savings sleep voltage, said power management controller further configured to enable select ones of the plurality of devices to be operatively disconnected from the Vrun power rail and connected to the sleep voltage Vsleep output, wherein devices operatively connected to the sleep voltage Vsleep output operate in a sleep power mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for implementing run/sleep mode power management in an information handling system, the method comprising:
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querying whether a device of a plurality of devices in the information handling system is to be added to or removed from a sleep mode, in response to the device being added to or removed from the sleep mode, updating a power savings sleep voltage, the power savings sleep voltage being a function of a [[cumulative]] power savings for various device/sleep voltage combinations of the plurality of devices;
transitioning a sleep regulator to the updated power savings sleep voltage; and
if removing the device from the sleep mode, then adding the device to the run mode at a run voltage, otherwise adding the device to the sleep mode at the updated power savings sleep voltage of the sleep regulator. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A computer program for run/sleep power management, the computer program processable by an information handling system for causing the information handling system to:
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determine a power savings sleep voltage for a run/sleep mode power management condition of a plurality of devices operatively connected to a microprocessor and further being operatively connected to a run voltage power rail, the devices configured to operate in a run mode in response to a run voltage Vrun applied to the run voltage power rail;
control a sleep power voltage output of a sleep regulator according to the power savings sleep voltage, enable select ones of the plurality of devices to be operatively disconnected from the Vrun power rail and connected to the sleep voltage Vsleep output, wherein devices operatively connected to the sleep voltage Vsleep output operate in a sleep power mode. - View Dependent Claims (20, 21, 22, 23)
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Specification