基于dsPIC30F3011单片机的双路直流稳压电源设计

摘要

Traditional dual DC power supply used most of the linear power,which is lack of self-protection function,a high failure rate and the maintenance workload.To introduce a dual DC regulated power supply based on MCU design,the main circuit design using diodes to complete AC/DC conversion,and then through IGBT chopper adjustment,to achieve the DC/DC conversion outputs DC voltage.The control circuit uses dsPIC30F3011 as core,in accordance with the time optimal and PID control to achieve PWM regulation.Experiments results show that the design circuit has failed to self-protection and LCD display,in order to accurately and quickly repair the fault.%传统使用的双路直流稳压电源大多是线性电源,缺乏自我保护的功能、故障率较高,且维修工作量很大.本文介绍了一种基于单片机的双路直流稳压电源的设计方法,该设计主电路采用二极管完成AC/DC变换,再通过IGBT进行斩波调节,实现DC/DC变换,输出直流电压.控制电路以dsPIC30F3011为核心,按照时间最优和PID控制方式实现PWM调节.实验证明,该设计电路具有故障自我保护和液晶显示功能,以便准确、快速的对故障进行维修.