Protective circuitry controls power supply enablement
US8804292B2 · kind B2 · utility
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6References
12Claims
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Assignee
Inventors
Key dates
| Filing date | Jul 16, 2012 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Oct 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A protective circuit compares at least two different signals and asserts a control node toward respective logic states accordingly. At least one of the signals is derived from a voltage on a power rail within a computer or other device. A switching element passes or isolates an enable signal based on the logic state of the control node, enabling or preventing operation of a power supply, accordingly. Central processing units (CPUs) or other elements are protected against electrically caused damage in the event that a fault is detected by the protective circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.