System and method for providing centralized backup power in a computer system
US5809311A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Jun 14, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a computer system having a plurality of electronic subsystems therein adapted to receive main electrical power from an interruptible main power supply, ones of the electronic subsystems being designated as critical to retention of user data in the computer system in an event of interruption of the electrical power from the main power supply, a backup power subsystem and method for controllably delivering backup electrical power to the ones of the electronic subsystems. The subsystem comprises: (1) a central electrical power storage cell having a particular capacity and adapted to be maintained in a constantly charged state, (2) a backup electrical power bus coupled to the central electrical power storage cell and adapted to be selectively coupled to selected ones of the electronic subsystems and (3) a backup power management controller adapted to couple the backup electrical power bus to the selected ones of the electronic subsystems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.