摘要
介绍以PIC18F452-I/P单片机作为主控制器,由CPLD、数模转换电路、整形电路和运算放大电路等组成的矩形脉冲信号发生器.系统实现了高频率矩形脉冲信号的产生和外同步工作;脉冲宽度(周期)和输出幅度可以通过键盘实现步进控制和显示;同时还可以实现输出脉冲伪随机序列和TTL/COMS接口输出等功能.电路非常简单,具有高性价比.
The rectangular pulse signal generating device is introduced, taking the PIC18F452-I/P monolithic circuit as the host controller, which is composed of CPLD, the digital-analog conversion circuit, the reshaping circuit and operational amplifier circuit and so on. In the system, the high-frequency rectangle pulse signal and the outside synchronized work can be realized. The pulse width （cycle） and the output scope can be controlled and demonstrated through the keyboard; Simultaneously it may also realize the output pulse pseudo-random sequence and TTL/COMS connection. The electric circuit is extremely simple with high theratio.
出处
《浙江水利水电专科学校学报》
2007年第4期64-67,共4页
Journal of Zhejiang Water Conservancy and Hydropower College
