![]() Therefore, counting pulses can be applied in the stepper motor to achieve a desired amount of shaft rotation. Inherent in this concept is open-loop control, wherein a train of pulses translates into so many shaft revolutions, with each revolution requiring a given number of pulses.Įach pulse equals one rotary increment, or step (hence named, stepper, stepping, or step motor), which is only a portion of one complete rotation. The stepper motor is an electrical motor that is driven by digital pulses rather than a continuously applied voltage. This is the distinguishing feature of a stepper motor. One may assume that a stepper motor will dependably follow digital instructions, just as a computer is expected. Digital information is processed by the stepper motor to accomplish an end result, in this case, controlled motion.
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