Circuit protection system and method
US8826056B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Oct 31, 2011 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Sep 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit protection system for an electronic system includes a platform control hub (PCH), a PCH power chip connected to the PCH, a basic input output system (BIOS), a control unit, and a power supply. The control unit determines the potential of a PW_OK signal from the PCH power chip to get the current state of the electronic system through the BIOS, thereby determining whether the current status of the PW_OK signal corresponds to a predetermined status of the PCH power chip which is defined in the current state of the electronic system. If the current status of the PW_OK signal does not correspond to the predetermined status, the control unit outputs a system PW_OK signal of low potential to disable the PCH power chip, and outputs an enable signal to the PCH which outputs a PS_ON signal of high potential to the power supply to shutdown the electronic system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.