STEPPER MOTOR - how doesthey work ?

[anujgupta.gcet]

STEPPER MOTOR

can anybody explain us about stepper motor??

 

[Reuel2]

Re: STEPPER MOTOR

A stepper motor typically has 4 coils. Inside the motor, these coils relate to metal parts on the shaft in such a way that each step is only so many degrees. One stepper motor I use has 20 steps per rotation, or 18 degrees per step.

By activating the coils in sequence, the motor only rotates to the next step. Coil one is 0 degrees, turn on coil 2 while turning off coil 1, 18 degrees. Turn on coil 3 while turning off coil 2, 27 degrees. You have a very precise control of how fast the motor turns in a single rotation. You can hold one coil on and not step, thereby locking the motor. To turn the other way, reverse steps.

Another kind of stepper motor only has 2 coils. You reverse the voltage alternately on each coil to get the next step.

I've seen stepper motors that had 400 steps per revolution that I've pulled off old hard drives.

 

[anujgupta.gcet]

Re: STEPPER MOTOR

can u explain the interfacing of stepper motor with 8051 microcontroller??

 

[Reuel2]

Re: STEPPER MOTOR

Google is your friend! Start here: https://www.8051projects.net/stepper-motor-interfacing/stepper-motor-connections.php

 

[JoKKeR]

STEPPER MOTOR

You can use "pic simulator IDE" There is a version for 8051 also

This software got stepper motor indicator ( 2 coils)
Got basic and assambler as compiler.

 

[stratcat50]

Re: STEPPER MOTOR

https://www.cs.uiowa.edu/~jones/step/ is a good place to start.

 

[micard]

STEPPER MOTOR

give them the rod instead of fish..

those simple questions have answers at google...