在汽车中，常常采用特制直流继电器控制小功率直流电动机正、反转。
We often use special DC relay to control low powered DC motor in cars.
本系统采用霍尔元器件测量电动机的转速，用8051单片机实现小功率直流电动机的脉宽调速。
The system adopts Huoer elements in the motor rotation measurement and USES 8051 SCM in pulse - band speed adjustment.
介绍了8051单片机在小功率直流电动机转速控制系统中的应用、实现方法、硬件设计及软件设计等。
Gives an introduction to the application, working approach and designing of software and hardware in the rotation control system of low - power DC motors.
应用推荐