Stepper motors are DC motors that have multiple coils arranged in groups called ‘phase’. Each phase gets energized in sequence to rotate the motor one step at a time. We can get a very precise positioning and speed control of the stepper motor through computer controlled stepping. This allows the stepper motor to be used for precision motion control applications.

stepper motor

Classification of stepper motor-

There are different types of stepper motors in terms of their sizes, styles, and electrical characteristics. A stepper motor can be classified into two main categories as mentioned below:

Also Read: Induction Motor definition and working principles

  1. Without permanent magnet

  • Single Stack
  • Multi-Stack
  1. With Permanent Magnet

  • Claw Pole Motor
  • Hybrid Motor
  • Single stack-variable reluctance-stepper motor-