Power switch system
US7723870B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Oct 16, 2007 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Jan 29, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A power switch system (200) for selectively providing power from a primary power source and a secondary power source to an electronic device, includes a detecting module (24), and a selecting module (30). The detecting module is connected to the primary power source. The selecting module is connected to an output terminal of the detecting module, the primary power source, and the secondary power source, and outputs the power from the primary power source to the electronic device if the primary power source is available. The detecting module is configured for determining whether the primary power source is available for the electronic device and generating a switch signal if the primary power source is unavailable, and the selecting module outputs power from the secondary power source to the electronic device in response to the switch signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.