摘要
采用MCS - 5 1和晶体管构成脉冲宽度调制 (PWM)直流电机驱动及转速测量系统 ,用单片机实现动态显示和超速报警 ,用硬件配合实现脉冲移相、驱动电路等 ,可提高系统的可靠性。
A pulse width modulation system using MCS-51 and transistors is designed. Timely display and prompt alarm are given when it exceeds the speed limit by MCS. The hardware circuit is used in trigger and drive. Reliability, flexibility and anti-interference are raised in the system.
出处
《青岛建筑工程学院学报》
2003年第2期69-71,共3页
Journal of Qingdao Institute of Architecture and Engineering
