Method and apparatus for information handling system sleep regulation
US6901523B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2002 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Nov 27, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.