PWM DC Motor Speed Controller Circuit Using PIC16F877A Microcontroller

In our last PIC online tutorial we have covered PWM generation using PIC Microcontroller. As I told earlier PWM has wide application in electronics and robotics engineering.

In this article I’m gonna show you one of the important applications of PWM in Robotics, it is called Pulse Width Modulation motor speed control.

The method of generation of PWM signal is the same as before and this signal is applied to the Enable terminal of L293 motor driver IC. L293 is an H bridge motor controller IC capable of driving 2 Motor loads at a time.

Below is the detailed description of dc motor speed control using PWM technique with Proteus simulation and video demonstration.

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[Simple] Generating Pulse Width Modulation using PIC Microcontroller - Mikro C & Proteus Simulation

How to generate Pulse Width Modulation (PWM) using PIC microcontroller? This is going to be a continuation of our microcontroller online tutorial series. This article covers the detailed explanation and simulation of PWM generation using PIC16F877A microcontroller.

What is a Pulse Width Modulator? A PWM has series of pulses with variable pulse width. We have used Mikro C pro for pic microcontroller programming because it has inbuilt library functions to do many operations especially in PWM, this will simplify the user headache.

The simulation is done with Proteus design suite. In my previous article we have already discussed How to Simulate PIC Microcontroller in Proteus?

PWM has wide applications in automation such as DC motor speed control circuit , generating analog signals from digital signals and LED brightness control.

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