AVR-Chat

An electric motor is basically a Hall Effect device.  By increasing and 
decreasing the magnetic flux density you increase and decrease the 
angular velocity at which the "armature" rotates inside the fixed 
magnetic field of the "field" windings...increase the flux density and 
the velocity increases, decrease and it slows.  Varying the field will 
do likewise with a fixed armature flux density, within limits, but the 
effect is reversed.

Is that what you're looking for?

Google is your friend.


REB


ktal3at wrote:

>Dear : 
>
>i am looking for help to use PWM @mega8535 To contrl Dc Motors
>but there is a problem 
>
>
>can any one help me by code and show how can i get the motors fast and 
>slow ?? 
>
>thanks 
>
>
>
>  
>