摘要
以意法半导体公司的STM32F103ZET处理器为核心,通过C#上位机程序实时设置参数,实现频率可调、占空比可调的PWM输出;再通过对输出信号频率、占空比进行测量,反馈给微处理器,利用PI控制器对系统进行闭环控制,以达到精密PWM电压发生器的要求。基于PI控制的在线精密PWM电压发生器可以根据需要,产生不同负载能力的信号,具有了简单操作、实用性强等特点。
This design is based on STM32F103ZEF as the core microcontroI er,couId set parameters in reaI time through C# con-soIe program to reaIize the PWM output with different frequency and duty ratio,and then the hardware wouId measure the frequency and duty ratio of the reaI signaI output and send the feedback to micro-controI er.The PI controI er wiI have cIosed-Ioop controI over the PWM generator to meet the specific IeveI of precision.
出处
《工业控制计算机》
2015年第1期146-148,共3页
Industrial Control Computer
