一种实验室可用的虚拟波形发生器设计

Design of a virtual waveform generator available in laboratory

为了便于在实验室中对任意频率与波形信号进行实时调制,文中提出一种采用STM32F103ZET6单片机和Proteus软件相结合的方法,实现了一种易操作、可便携的虚拟函数信号发生器的设计。该函数信号发生器采用STM32系列单片机作为主控芯片,同时外接矩阵键盘、D/A转换器、LCD12864显示系统,并且借助Proteus仿真实验可以很好地输出频率和幅度可调的方波、三角波、正弦波以及锯齿波等波形。实验结果表明,该虚拟函数信号发生器可以在输出信号失真很小的情况下,使得系统操作性能稳定,并且降低成本和技术难度。

Function-based signal generators can meet the demand for arbitrary frequency and waveform signals in the laboratory.This paper proposes an easy-to-use and portable virtual function signal generator design using a combination of STM32F103ZET6 microcontroller and Proteus software.The function signal generator uses the STM32 series microcontroller as the main control chip,with an external matrix keyboard,D/A converter and LCD12864 display system,and can output square,triangle,sine and ramp waveforms with adjustable frequency and amplitude with the help of Proteus simulation experiments.The experimental results show that the virtual function generator can make the system operation stable with minimal distortion of the output signal,as well as reducing costs and technical difficulties.