High-power foldback mechanism in system for providing power over communication link
US7554783B2 · kind B2 · utility
8Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Apr 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A novel system for providing power over the Ethernet includes a current limit circuit for preventing an output current from exceeding a current threshold set at a prescribed level, and a foldback circuit for reducing the current threshold when an output voltage is lower than a prescribed voltage value. The foldback circuit may be controlled to operate in a high-power mode to increase the current threshold above the prescribed level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.