Design and Application of High-precision Square Wave Generator Base on PIC
XU Liu-juan · Journal of Zhejiang Water Conservancy and Hydropower College · 2007
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.