Detecting power supply noise events and initiating corrective action
US10581440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2017 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Jun 2, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/0805
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Techniques are disclosed relating to detecting supply voltage events and performing corrective actions. In some embodiments, an apparatus includes sensor circuitry and control circuitry. In some embodiments, the sensor circuitry is configured to monitor supply voltage from a power supply and detect a load release event that includes an increase in the supply voltage that meets one or more pre-determined threshold parameters. In some embodiments, the control circuitry is configured to increase clock cycle time for operations performed by circuitry powered by the supply voltage during a time interval, wherein the time interval corresponds to ringing of the supply voltage that reduces the supply voltage and results from the load release event. In some embodiments, the disclosed techniques may reduce transients in supply voltage (which may avoid equipment damage and computing errors) and may allow for reduced voltage margins (which may reduce overall power consumption).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.