Transformerless power over ethernet system
US8132027B2 · kind B2 · utility
10Cited by
29References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2006 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Apr 1, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a powered device (PD) (402) has a PHY module (410) and a media access controller (419) (MAC), the PD (402) adapted to connect to power sourcing equipment (PSE) via a cable, (408) where the PD (402) is adapted to communicate with and receive power from the PSE via the cable, in accordance with the Power-over-Ethernet (PoE) standard. The PD (402) extracts (413) from the cable (408) a DC signal used to power the PD without using a transformer. Capacitors (420) located in the signal paths between the MAC (419) and the cable (408) support electrical isolation of the MAC (419).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.