STEPPER MOTOR
#1

presented by:
.Ashwini Sanu
.Divya Kanekal
Divya Chawan
Rajeshwari T
Rashmi H

[attachment=10181]
Basic principle:
Permanent Magnet stepper motors incorporate a permanent magnet rotor, coil windings and magnetically conductive stators. Energizing a coil winding creates an electromagnetic field with a north and south pole.
The stator carries the magnetic field which causes the rotor to align itself with the magnetic field. The magnetic field can be altered by sequentially energising or ‘’stepping’’ the stator coils which generates rotary motion.
INTRODUCTION
 Stepper motors commonly have a permanent magnet rotor (also called shaft) surrounded by a stator.
 There are also steppers called variable reluctance stepper motors that do not have a permanent magnet rotor.
WORKING OF A STEPPER MOTOR
 The most common stepper motors have four stator windings that are paired with a center -tapped common. These are called as four phase or unipolar stepper motors.
 The center tap allows a change of current direction in each of the two coils when the winding is grounded , thereby resulting in a polarity change of the stator.
 The stepper motor has a fixed repeatable movement.
 This is possible as a result of basic magnetic theory where poles of the same polarity repel and opposite poles attract.
 The direction of the rotation is due to the current through the stator poles . As the direction of the current changes polarity changes resulting in reverse rotation
STEP ANGLE
 Step angle is the minimum degree of rotation associated with a single step.
 The various motors will have different step angles.
STEPS PER REVOLUTION:It is the total number of steps needed to rotate one complete rotation or 360 degrees.
 For example if step angle is 2degree,then for one
complete rotation 180 becomes the steps per revolution.
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: ashwini tapare, ashwini,

[-]
Quick Reply
Message
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  DC MOTOR CONTROL USING CHOPPER seminar class 3 5,720 25-11-2015, 02:00 PM
Last Post: seminar report asees
  High Performance Motor Drive Using Matrix Converter project topics 3 9,384 27-07-2013, 10:35 AM
Last Post: computer topic
Bug Automatic Induction Motor Starter with Programmable Timer Computer Science Clay 3 9,858 18-12-2012, 11:12 AM
Last Post: seminar details
  FLUX ESTIMATORS FOR SPEED-SENSORLESS INDUCTION MOTOR DRIVES computer girl 0 1,076 07-06-2012, 01:51 PM
Last Post: computer girl
  DTMF Based Interfacing and Control of Induction Motor using TRIAC computer girl 0 1,817 07-06-2012, 11:02 AM
Last Post: computer girl
  TO DEVELOP A SPEED CONTROL SYSTEM FOR AC MOTOR USING MULTILEVEL (3,5,7) INVERTERS. computer girl 0 942 06-06-2012, 04:56 PM
Last Post: computer girl
  FUZZY LOGIC CONTROL OF A SWITCHED RELUCTANCE MOTOR projectsofme 1 2,404 29-02-2012, 10:16 AM
Last Post: seminar paper
  Induction Motor Speed Control using Fuzzy Logic Controller full report seminar topics 1 5,779 13-02-2012, 03:31 PM
Last Post: seminar paper
  Speed Control of 3-Phase Induction Motor Using PIC18 Microcontrollers seminar class 1 2,625 25-01-2012, 10:46 AM
Last Post: seminar addict
  comparative study of induction motor iqbalhajar 0 853 09-11-2011, 08:26 AM
Last Post: iqbalhajar

Forum Jump: