Multi-rail power-supply system
US8212400B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Jun 29, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J1/082
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multi-rail power-supply system provides power to circuitry requiring at least one additional rail between a high and a low-voltage rail. The system comprises a first power regulator that interconnects the high-voltage rail and an intermediate node and sets a first voltage rail that has a magnitude that is less than the high-voltage rail, wherein current that flows from the high-voltage rail is employed by a first set of peripheral circuitry prior to sinking through the first power regulator to the intermediate node. The system further comprises a second power regulator that interconnects the intermediate node and the low-voltage rail and sets a second voltage rail that has a magnitude that is greater than the low-voltage rail, wherein current that flows from the intermediate node is sourced by the second regulator and is employed by a second set of peripheral circuitry prior to flowing to the low-voltage rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.