Power supply system for detecting a rail violation in a multi-rail sequence
US12386406B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2023 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Aug 23, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In some aspects, a power supply system includes a plurality of power supply devices configured to be connected to an integrated circuit, where a power supply device of the plurality of power supply devices includes a voltage regulator configured to generate a rail voltage, and an internal diagnostic circuit. The internal diagnostic circuit is configured to detect activation of an enable signal to activate the plurality of power supply devices according to an activation power sequence, detect a rail violation of the activation power sequence in response to a value of the rail voltage at a first time, not satisfying a first condition defined by a voltage threshold, or at a second time, not satisfying a second condition defined by the voltage threshold. In response to the rail violation being detected, the internal diagnostic circuit is configured to activate an interrupt signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.