Power supply glitch detection
US11824436B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2021 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Jan 28, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/088
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A detector circuit included in a computer system filters the voltage level of a power supply node to generate filtered signals. The detector circuit either compares the filtered signals or samples the filtered signal and compares the samples to reference levels to detect changes in the voltage level of the power supply node that exceed thresholds for magnitude and duration. A control circuit included in the computer system generates, using the glitch signal, control signals that can be used to change operating parameters of functional circuits included in the computer system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.