Calibration of the external resistance value in the power sourcing equipment of a power over ethernet system
US12270843B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2022 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Jun 23, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibration operation determines a resistance of a sense resistor in a POE system. A voltage measurement is taken with a first current flowing through the sense resistor. A second voltage measurement is taken with a second current flowing through the resistor. A resistance value of the sense resistor is determined based on a voltage difference between the first and second voltage measurements and a current difference between the first current and the second currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.