降压型直流开关稳压电源的设计

Designing of the Step-down DC Switch Regulated Power Supply

本降压型直流开关稳压电源以LM5117芯片和CSD18532KCS MOS场效应管为核心器件,实现了DC-DC变换功能,并以STM32f103zet6单片机作为主控制芯片,实现了过流保护控制、电阻负载识别以及实时显示输出电压、电流和功率等功能。该电路结构简单、输出电压稳定,直流转换效率高,能在直流转换场合得到广泛应用。

In the designing of the step-down DC switch regulated power supply,LM5117 chip and CSD18532 KCS MOS field effect tube are used as the core devices to make DC-DC transform function realized.STM32f103zet6 is used as the the main control chip to realize the over-current protection control,load resistance identification and real-time display of the output voltage,current and power etc..The circuit can be widely used in DC conversion occasions due to its simple structure,stable output voltage and high DC conversion efficiency.