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What is a stepper motor

What is a stepper motor?

A stepper motor is a brushless DC electric motor that works by dividing a full rotation into a number of equal steps. The motor can be stopped at any of the steps without any feedback sensor as long as the motor is accurately sized for the application.

Related Questions

What is a unipolar stepper motor?

A unipolar stepper motor is one of the two basic types of two phase stepper motors. The unipolar motor has one winding with a center tap per phase. Typically the center tap is made common, giving three leads per phase and six leads for the typical two phase motor. Mostly these two phase commons are internally joined making the motor have five leads. A micro controller or stepper controller can be used to control drive transistors in the right order, creating an ease of operation making the unipolar stepper motor the cheapest way to gain precise angular movements.

When should I use microstepping?

microstepping is used in applications requiring the motor to operate at less than 700 PPS. At low pulse rates, stepper motors to less smooth and often vibrate.

Additional Information

What is a Stepper Motor?
A stepper motor (also referred to as step or stepping motor) is an electromechanical device achieving mechanical movements through conversion of electrical pulses. Stepper motors are driven by digital pulses rather than by a continuous applied voltage. Unlike conventional electric motors which rotate continuously, stepper motors rotate or step in fixed angular increments. A stepper motor is most commonly used for position control. With a stepper motor/driver/controller system design, it is assumed the stepper motor will follow digital instructions. One important aspect of stepper motors is the lack of feedback to maintain control of position, which classifies stepper motors as open-loop systems.

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