摘要
设计了一款适合于校园的PoE电源,它具有安全性高、低成本、抗干扰能力强等特点,应用前景良好。首先介绍了PoE电源的工作原理,然后自主设计了一款基于UC2845的低成本、高安全性PoE电源,包括AC/DC主电路和各保护电路的原理以及重要元器件的选型,最后详细介绍了这款PoE电源在校园中的实际应用。
A PoE power supply in campus is proposed in this paper, which has the ability of high-security, low-cost,strong anti-jamming and so on. This kind of power supply has wide application prospects in the future. Firstly, the concepts of PoE power supply is introduced, and then a low-cost and high-security PoE power supply based on UC2845 is designed, including main circuit, kinds of protection circuits, and the selection of the important components. Finally, the application of this power supply in campus according to the actual demand is described.
出处
《电视技术》
北大核心
2013年第13期67-69,共3页
Video Engineering
