摘要
以ＰＷＭ脉冲宽度调制方式为对象，提出了一种在微处理器ＣＰＵ控制下，用Ｉｎｔｅｌ８２５３可编程序定时器实现数字控制的调宽脉冲生成的方法．该方法可在计算机控制下，由接口芯片产生ＰＷＭ波，不需要经过Ｄ／Ａ转换、三角波发生器和脉宽调制等模拟信号处理的复杂环节．
The pulse width modulation (PWM) is taken as the object in this paper. A method is put forward, for pulse width modulation of data control with Intel 8253 programmable interval timer which is controlled by microprocessor. Under the control of the computer, the PWM wave is produced by interface chip and it is no longer necessary that the PWM wave is made by the complex methods of digital to analog converters, triangle wave generator, and pulse width modulation.
出处
《甘肃工业大学学报》
1998年第2期63-65,共3页
Journal of Gansu University of Technology
关键词
脉宽调制
定时器
直流电机
晶体管
PWM, microprocessor, timer, numerical controller, servmotor
