工业以太网交换机不间断供电系统设计

Design of Constant Supply System for Industrial Ethernet Switch

针对工业以太网交换机对供电电源质量要求较高的问题,设计了一种工业以太网交换机不间断供电系统;详细介绍了该系统硬件电路即直流稳压供电电路、蓄电池充电管理控制电路、蓄电池温度检测电路、电源切换电路、CAN总线通信电路和单片机控制电路的设计,并给出了该系统主程序流程。试验结果表明,该系统具有动态响应快、静态功耗小等特点,可满足复杂环境下的工业以太网交换机供电需求。

In view of problem that industrial Ethernet switch has higher requirement to quality of power supply, a constant supply system for industrial Ethernet switch was designed. Hardware circuits of the system were introduced in details, namely DC stable voltage supply circuit, charging management and control circuit of battery, temperature detection circuit of battery, switching circuit of power supply, CAN bus communication circuit and single-chip microcomputer control circuit, and main program flow of the system was gave. The test result showed that the system can meet with supply requirements of industrial Ethernet switch under complex environment with characteristics of quick dynamic response, low static power consumption.