Control scheme to temporarily raise supply voltage in response to sudden change in current demand
US9395775B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2013 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | May 14, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for managing changes in current demand, including one or more processors, a memory coupled to at least one of the processors, a clock generation circuit coupled to the memory and configured to output a clock, one or more functional blocks, a power supply, configured to output a plurality of voltage levels, and a power management unit. The power management unit may be configured to set the power supply output to a first voltage level and then detect indications of an impending change in current demand within the SoC. If an indication of an impending change in current demand is detected, then the power management unit may be configured to adjust the power supply output to a second voltage level. After determining the impending change in current demand has occurred, the power management unit may be configured to adjust the power supply output back to the first voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.