What is a Stepper Motor?

Christopher Nook by Christopher Nook

A stepper motor is one of the most common motors used in motion control applications, primarily positioning applications.

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A stepper motor is one of the most common motors used in motion control applications, primarily positioning applications. Even though they usually operate open-loop, that is without the use of feedback devices like encoders or resolvers, they can be accurately controlled, down to fractions of a degree, which helps reduce the cost of systems.