Stepper motors work on the principle of electromagnetism. The stator and rotor have magnetic poles and by energising the stator poles, the rotor moves in order to align with the stator.

Stepper motor s are a marvel of simplicity; they have no brushes or contacts for commutation, like DC motors . Stepper motors are the workhorses of the motion industry, giving designers numerous degrees of freedom to live up to choose the exact right motion source for their application. Stepper motor basics What is a stepper motor? Waveforms that can Drive a Stepper Motor Quick Start for Beginners to Drive a Stepper Motor, Rev. A Stepping Motor System consists of three basic elements, often combined with some type of user interface (such as a host Their rapid gain in popularity has seen an increasing range of applications in the fields of Consumer Appliances, Automotive Industry, Industrial Automation, Chemical and Medical, Aerospace and Instrumentation. Stepper motor driving By Thomas Hopkins Introduction Dedicated integrated circuits have dramatically simplified stepper motor driving. As in the case of any other motors, a stepper motor has a rotating part which is aptly called a rotor and a static part termed stator. To apply these ICs, designers need little specific knowledge of motor driving techniques, but an understanding of the basics helps in finding the best solution. Unlike a brushless DC motor which rotates continuously when a fixed DC voltage is applied to it, a step motor rotates in discrete step angles.The stepper motor can be controlled with or without feedback. Brushless DC Motors or BLDC Motors have become a significant contributor of the modern drive technology. You should be aware that the economical single-chip stepper drivers (such as the A4988 and the DRV8825) can only supply about 2 amps. Step Motor Basics Guide. 1 Freescale Semiconductor 5 Waveforms that can Drive a Stepper Motor Stepper motors have input pins or contacts that allow current from a supply source (in this application note, a microcontroller) into the coil windings of the motor. This note explains the basics In a stepper motor, the coils are not connected. The following information is intended as a general guideline for wiring of the stepper motors. Stepper motor basics – How does a stepper motor work? Then choose the stepper motor driver When you have selected a motor and know what current it requires you can choose a stepper motor driver that can comfortably supply the required current. Instead, it's a synchronous motor with electronically-switched magnetic fields which rotate the armature magnets . This means motor torque is the inverse of motor speed. Stepper motor (also called as step motor) is basically a brushless DC motor, whose rotor rotates through a fixed angular step in response to input current pulse.That means, the full rotation of the rotor is divided into equal number of steps, and rotor rotates through one step for each current pulse.