System and a method for controlling operating voltage
US10114442B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2016 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | May 29, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A control system for controlling an operating voltage of an electronic device is presented. The electronic device includes a timing event detector responsive to timing events, such as errors, related to operation of the electronic device. The control system includes a controller for decreasing the operating voltage when the rate of timing events is below a target level and for increasing the operating voltage when the rate of timing events exceeds the target level to search for a threshold voltage that is the smallest operating voltage at which the rate of timing events is substantially at the target level. The control system further includes a controllable clock signal generator for producing a clock signal for operating the electronic device so that the clock frequency is according to an increasing function of the operating voltage. Thus, it is possible to find a voltage-frequency operating point where the energy consumption is minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.