基于CPLD的电机速度测量及控制系统  

Motor speed measurement and control system based on CPLD

作　　者：彭耀仟 PENG Yao-qian(School of automation,Central South University,Hunan 410000,china)

机构地区：[1]中南大学自动化学院

出　　处：《电气传动自动化》2019年第5期39-41,共3页Electric Drive Automation

摘　　要：本文介绍了一种基于CPLD的直流电机速度测量及控制系统的原理。系统采用测频法通过光电开关测量电机转速,并且在数码管上显示;系统设计以CPLD作主控制部分,调节脉冲占空比的大小,通过PWM驱动电路调节输出电压,从而控制直流电机的转速。This paper introduces the principle of speed measurement and control system of DC motor based on CPLD.The system adopts the frequency measurement method to measure the motor speed through the photoelectric switch and displays it in the digital Guanshang.The system design uses CPLD as the main control part,adjusting the size of the pulse ratio,and adjusting the output voltage through the PWM drive circuit to control the speed of the DC motor.

关 键 词：CPLD 直流电机 测频法 PWM ATmega328p TB6612 PID 风洞 

分 类 号：TM33[电气工程—电机]