摘要
介绍了以电压驱动型脉宽调制控制集成电路TL494为核心元件的管道爬行器运行速度控制器,它能把脉冲宽度变化的信号转换成与脉冲宽度成正比变化的直流信号,进而实现直流电机的运行速度控制。
Operated by voltage-driven PWM integrated circuit TL494,the speed controller in the pipe crawler under discussion can transform pulse width signals into proportionate DC signals so as to control the operating speed of the DC motor.
出处
《唐山学院学报》
2003年第3期78-80,共3页
Journal of Tangshan University
