摘要
以AT89C52单片机为核心,采用集成芯片L298N及其外部辅助电路构成驱动电路。通过单片机接口,以PWM控制电机的转速,构建了一个直流电机控制系统。采用Keil4和Proteus8作为工具软件,对电路系统进行编程、设计和仿真。由单片机发出PWM调速信号,经L298N驱动模块驱动直流电机,通过改变占空比来实现直流电机的调速控制。
Taking a AT89C52MCU as core and adopting L298N integrated IC and its external auxiliary circuit to constitute drive circuit were implemented, including making use of MCU interface and employing PWM to control DC motor’s revolving speed to establish a DC motor control system and adopting utility software like Keil4 and Proteus8 to program, design and to simulate the circuit system. The AT89C52 MCU gives out PWM speed regulation signals and drives DC motor through the L298N drive module and completes speed control of the DC motor by changing the duty ratio.
作者
陈炜炜
詹跃东
CHEN Wei-wei;ZHAN Yue-dong(Faculty of Information Engineering and Automation,Kunming University of Science and Technology;Electric Power Research Institute Postgraduate Workstation,Yunnan Power Grid Limited Liability Corporation)
出处
《化工自动化及仪表》
CAS
2019年第3期218-222,共5页
Control and Instruments in Chemical Industry
基金
国家自然科学基金项目(51667012)
