多供电方式的无线传感器网络电源电路

Multiple-mode power supply scheme for WSN

在无线传感器网络节点的开发和应用中,往往采用多类型电源供电的方式来满足不同场合的要求,因此不同供电源之间的相互保护成为一个重要问题。以提高多类型电源供电时节点的安全性为目的,通过二极管和MOS的开关特性隔离多种供电电源的相互干扰,提出了一种多类型电源供电、高安全性的电源电路,详细阐述了电源系统的设计思路与电路结构。仿真结果表明,该电源方案能有效提高无线传感器网络节点电源电路的易用性和安全性。

With the development and applications of wireless sensor network(WSN)nodes,multisources of power supply are usually used to meet the requirements of different situations.Thus,the mutual protection between different power supply sources becomes an important issue.Aiming at the safety of WSN nodes,this paper proposes a multiple-mode power supply scheme for WSN nodes with high safety by isolating the mutual interference of multiple power supplies through the switching characteristics of diodes and MOS.The design method and circuit structure of the power system are described in detail.The simulation results show that the proposed power supply scheme can effectively improve the usability and safety of the power circuit for WSN nodes.