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Method and apparatus for information handling system sleep regulation

  • US 20030233588A1
  • Filed: 06/14/2002
  • Published: 12/18/2003
  • Est. Priority Date: 06/14/2002
  • Status: Active Grant
First Claim
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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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