Identification circuit for power sourcing equipment, and powered device
US9501117B2 · kind B2 · utility
2Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2014 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | May 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/413
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic detection circuit for detecting a power level provided by a power sourcing device to a powered device in a Power over Ethernet (POE) system, the electronic detection circuit comprising a power input end, a power output end, a charge retention module configured to generate a control voltage from the input voltage, a load module configured to draw power at a test power level from the power sourcing device, a connection switch, and an overload detection module connected to receive the input voltage to detect whether the input voltage has dropped to zero during the test period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.