AC disconnect of power over ethernet devices
US8661273B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2013 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | May 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of power sourcing equipment (PSE) utilizing AC disconnect are provided herein. In one embodiment, a PSE is provided that includes a DC supply configured to provide a DC voltage over a data communications medium, a controller configured to provide an AC disconnect signal over the data communications medium, and a parallel inductor-capacitor (LC) circuit coupled between the DC supply and the data communications medium. The parallel LC circuit is configured to isolate the DC supply from the AC disconnect signal. In another embodiment, a PSE is provided that includes a DC supply configured to provide a DC voltage at an output, an inductor coupled between the output of the DC supply and a data communications medium, and a capacitor coupled between the data communications medium and ground. The inductor and capacitor form a series LC circuit configured to generate an AC disconnect signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.