Priority powerdown system and method for power distribution systems
US7340325B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2005 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Sep 12, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/346
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A power controller for power sourcing equipment in a distributed power network provides power down policies and priority in the event of a power supply failure. The power down priority and policy permits implementation of a rapid decrease in the power demand of the distributed power network to avoid overload of a backup power supply. The priority may be derived based on the relative position of port information in a linked list. Devices associated with a high priority can remain powered in response to a main power supply failure, while lower priority devices can be rapidly powered down to reduce the overall load demand on the backup power supply. The ability to configure ports on the basis of priority and available policies provides a flexible and simple implementation of a response in the event of a main power supply failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.