一种90W高功率以太网供电系统的设计

Design of a 90W high power power-over-ethernet system

以太网供电(Po E)是一种通过现有以太网铜缆传输数据的同时进行直流供电的技术。设计了一种同时兼容LTPo E++和IEEE 802.3规范的90 W高功率以太网供电系统,系统具有自动控制和智能电源管理功能,最高可向受电设备输出90 W功率。介绍了系统的整体结构、硬件设计原理,分析了系统的工作流程,最后给出了实验测试结果。

Power-over-Ethernet （POE） is a kind of technology that offers DC power supply along with data transfers through existing Ethernet cabling. A 90 W high power Power-over-Ethernet system compatible with LTPoE＋＋ and IEEE 802.3 standard was designed with the functions of automatic control and intelligent power management, could provide up to 90 W of power to the powered device （PD）. The system＇s whore structure and the designing principle of the hardware were introduced, its working process was analyzed, finally the results of the experiments were given.