PHY based wake up from low power mode operation
US9411394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | May 31, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for supplying electrical power to a device. A system on chip (SOC) integrated circuit includes a first region having a processing core and a second region characterized as an always on domain (AOD) power island having a power control block with an energy detector coupled to a host input line. First and second power supply modules respectively supply power to the first and second regions. The second power supply module includes a main switch between the first power supply module and a host input voltage terminal. The power control block opens the main switch to enter a low power mode during which no power is supplied to the first region, and the power control block closes the main switch to resume application of power to the first region responsive to the energy detector detecting electrical energy on the host input line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.