Gain apparatus for power sourcing equipment of power over Ethernet
US10097361B2 · kind B2 · utility
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11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2015 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Sep 26, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A gain circuit for power sourcing equipment of Power over Ethernet is disclosed and provides a guard band for the input offset voltages of its operational amplifier. The guard band may be represented by a voltage value and may be set to be greater than the maximum input offset voltage of the input terminals of the operational amplifier. In some embodiment, the guard band allows the voltage of the negative input terminal of the operational amplifier to be greater than 0 V without sacrificing the gain precision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.