Stepper motors are brushless synchronous electric motors powered by direct current that rotate in steps, keeping the rotor stationary under a specific power supply. A well-defined sequence of PWM ...

Stepper motors exhibit a special feature: the ability to rotate the rotor shaft by a few degrees very precisely and without the need for sensors to detect the shaft’s angular position. In short, a ...

Microstepping is a major advancement in step motor technology introduced many years ago that allows motors to make finer steps in movement. By manipulating the current vector, microstepping creates ...

Find a downloadable version of this story in pdf format at the end of the story. Microstepping a two-phase stepper motor requires the winding currents to be 90° out-of- phase so that the stepper ...

If an engineer using a full-step, 5-phase motion system wants to improve performance without a complete redesign, then switching to a 5-phase system with microstepping capability may do the trick.

The IM481H PLUS microstepping driver includes a patented motion-control chip adding active antiresonance, ultrasmooth low-speed motion, and precise current control to perform demanding motion-control ...

Allegro MicroSystems, Inc. introduces a new motor driver IC designed to drive one winding of a bipolar stepper motor in a microstepping mode. Allegro MicroSystems, Inc. introduces a new motor driver ...