单片机数控直流稳压电源的设计

Design of Numerical Control D.C Stabilized Source Based on the SCM

稳压直流电源是电子类实验室最常用的仪器,由于使用不当或质量原因造成的损坏现象常常发生。采用STC12C5410AD单片机控制的直流稳压电源,具有电压输出范围宽、多组电压预设、电流过流设定保护、短路自动恢复等功能,使用10位高速AD转换器及PWM控制技术,使控制精度得到进一步的提高,另外使用中文液晶显示器显示输出电压及电流等信息,电压输出调节范围为0～40V,电流输出最大为2.0A,是电子电信类实验室最理想的通用直流电源。

D. C. stabilized source is an instrument commonly used in electronic labs, breakage phenomena often take place by improper using or quality causation. The D. C. stabilized source which is controlled by STC12C5410AD SCM has wide scope of output voltage and multi-group voltage pre - install and over-current protection and automatic recovery of short - cut circuit and so on. Using ten bits highspeed AD converter and PWM control technique can advance the precision in control. In addition, using Chinese LCD to show informations of output voltage and curren, adjustable range of output voltage is 0. 0 V - 40. 0 V and the most output-current is 2. 0A which is an ideal currency AC supply in electronic and telecom labs.