Auxiliary power switching arrangement for PCI Express, PC's and similar applications
US7482711B2 · kind B2 · utility
3Cited by
13References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2005 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | May 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/263
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A series pass transistor voltage regulator is described having a main power source and an auxiliary power source. When the main power source voltage falls to a level the regulator can no longer use, the regulator seamlessly draws power from the auxiliary source. A voltage dropping circuit of two series-coupled diodes allows for a single feedback control amplifier to control the regulator's pass transistors in series with the main and auxiliary power sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.