Power sequencing
US7469353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2005 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Nov 18, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/26
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and arrangements to establish power rails for a computer system in accordance with a sequence requirement are disclosed. Embodiments may interconnect voltage regulators for components of a platform in accordance with a sequence requirement for establishing power rails for proper operation of the platform. The voltage regulators may comprise enable inputs for enabling the establishment of power rails and power good signal outputs to indicate establishment of power rails. Some embodiments include interconnections to couple voltage regulators in a series of stages. Power good signals output by voltage regulators in one stage may enable inputs of voltage regulators in a subsequent stage. In many embodiments, such interconnections advantageously implement power sequence requirements with little or no need for glue logic and/or programmable logic devices, reducing costs and space requirements associated with implementing the power sequence. Other embodiments are disclosed and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.