Please Help....Driver circuit

[joker.mkt]

Hi guys i am a beginner....i would like you to explain me what a driver circuit is ,
what kinds of motor does it control,
how do i control the speed of the motor.....also please send me the schematic diagram of the circuit for controlling a motor using H-bridge.....and others if any.....

[Conscripted]

Welcome to SoR.

By driver I assume you are referring to motor driver. A motor driver circuit is one that can take the very small amount of power that a microcontroller is able to provide and control a motor or relay. Depending on which motor driver you acquire you should be able to control any type of motor. The basic ones are permanent magnet DC motors, Stepper motors, and brush-less. You can control the speed of a motor by turning the motor on and off really fast using "pulse width modulation" you will see it referred to as PWM on this forum.

Check google for H-Bridge circuits. There are hundreds listed there.

Conscripted 

[waltr]

Start with this thread:
http://www.societyofrobots.com/robotforum/index.php?topic=10455.0
Then do a forum search as this is a common question with lots on answers and discussion.

And go to the SoR tutorials (see top of this page) and read them. Everything is there to answer your question.