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.
标签： signal Modulated analog create
上传时间： 2015-05-14
上传用户：CHINA526
a program that generates a pulse-width modulated (PWM)signal.
标签： pulse-width generates modulated program
上传时间： 2015-08-15
上传用户：wfl_yy
This program shows how to configure and use the Pulse Width Modulator of the following microcontrollers: Philips 80C552 Philips 80C554 Philips 83/87C552 Philips 83/87C554 Philips 83/87C557E4 Philips 83/87C557E8
标签： microcontroll Modulator configure following
上传时间： 2015-09-26
上传用户：rocketrevenge
The following program demonstates the required configuration of the pulse width modulator peripheral for the following chips : Philips 80C552 Philips 80C554 Philips 83/87C552 Philips 83/87C554 Philips 83/87C557E 8
标签： configuration demonstates following modulator
上传时间： 2014-01-17
上传用户：huangld
Pulse Width Modulation (PWM) Tutorial
标签： Modulation Tutorial Pulse Width
上传时间： 2013-12-30
上传用户：sqq
脉宽调制(PWM的全称是Pulse Width Modulation（脉冲宽度调制）)是利用微处理器的数字输出来对模拟电路进行控制的一种非常有效的技术，广泛应用在从测量、通信到功率控制与变换的许多领域中。
标签： Modulation Pulse Width PWM
上传时间： 2016-05-09
上传用户：yd19890720
sine wave pulse width modulation
标签： modulation pulse width sine
上传时间： 2013-12-18
上传用户：皇族传媒
space vector pulse width modulation
标签： modulation vector space pulse
上传时间： 2014-11-30
上传用户：txfyddz
pulse width modulation code using servo motor
标签： modulation pulse motor width
上传时间： 2013-12-14
上传用户：ma1301115706
单片机产生PWM波对电机进行调速 脉冲宽度调制(Pulse Width Modulation—PWM)是指将输出信号的基本周期固定，通过调整基本周期内工作周期的大小来控制输出功率
标签： Modulation PWM Pulse Width
上传时间： 2017-06-15
上传用户：黄华强
