System for transmitting power to a remote PoE subsystem by forwarding PD input voltage
US11181959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2021 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Jan 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/13091
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure describes a system 400 for transmitting power to a remote Power over Ethernet (PoE) subsystem by forwarding Powered Device (PD) input voltage where the subsystem includes a PD and a Power Sourcing Equipment (PSE) device. Included is a master PSE device 402, a first subsystem 410, and a second subsystem 428. The first subsystem 410 includes a first PD 418 that includes a first power switching device 426 and a first PSE device 424. The first power switching device 426 forwards the input power from the first PD 418 to the first PSE 424 without disturbing the PoE handshaking between the devices. The first power switching device 426 uses a switching device with level detection that detects the required input voltage. The second subsystem 428 receives the power from the first subsystem's 410 first PSE device 424. And the second subsystem 428 operates in a manner similar to the first subsystem 410.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.