虫虫首页| 资源下载| 资源专辑| 精品软件
登录| 注册

您现在的位置是:虫虫下载站 > 资源下载 > 其他嵌入式/单片机内容 > he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with on

he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with on

  • 资源大小:2 K
  • 上传时间: 2015-05-14
  • 上传用户:wangdatouay
  • 资源积分:2 下载积分
  • 标      签: signal Modulated analog create

资 源 简 介

he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with only 2 discrete levels, for example 0V and 5V and a constant period. The current value of this signal at a certain poiTnt of time is proportional to its Duty Cycle. That s the High Time during one period divided by the period. It can also be calculated as the average value during a particular period. That means after low pass filtering, (e.g. RC circuit) the signal becomes analog, with an actual value controlled by the microcontroller. The PWM functionality enables the LPC932 to control for example the speed of DC motors or the brightness of electric lighting.

相 关 资 源

您 可 能 感 兴 趣 的