以太网供电技术简介  

The Brief Introduction of Power Over Ethernet Technology

作　　者：陈海川[1] 

机构地区：[1]西华大学电气信息学院,四川成都610039

出　　处：《通信电源技术》2005年第6期51-53,共3页Telecom Power Technology

摘　　要：传统网络设备的供电都需要本地交流电源来提供电能,不但增加了网络基础建设的成本,而且网络设备还可能受到电网掉电的影响。文中分析了通过以太网线同时传输数据和电能的以太网供电技术的基本工作原理及其发展,并结合一颗符合以太网供电技术标准的电源管理芯片,简要介绍了以太网供电设备的参考设计。The power supply for traditional network equipment all need local AC power source, which increases the cost of network base construction and may affect the network equipment once the power is cut off. This paper analyses the basic priciple and development of power over Ethernet technology through which both datas and power can be transmitted, and briefly introduces the reference design of power over Ethernet equipment combined with a power supply manage chip according with power over Ethernet technology standard.

关 键 词：IEEE802.af标准 以太网供电技术 芯片 

分 类 号：TM72[电气工程—电力系统及自动化]