Difference between Single stack and Multi stack stepper motor:
The difference between Single stack and Multi stack stepper motor is given below
In Single Stack : Stator is single stack of steel laminations winding would wound around poles. Stator and rotor poles may be different. The rotating step angle is 30°.
In Multi Stack : It is divided along its axis into a number of stacks each energized by separate phase. Number of stacks and phases will be 3 – 7. Stator and rotor poles are equal. The rotating step angle is 10°.