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Closed Loop Steppers Drive New Motion Control Applications

Nov. 7, 2024
Closed loop steppers are now finding adoption in a range of cost sensitive applications such as medical and lab automation, textile machinery, circuit board production, and pick and place machines where high rates of acceleration are critical.
Step motors are a popular solution for motion applications that benefit from low-cost and brushless (externally phased) operation. Step motors traditionally use an open-loop micro-stepping control scheme, but the more advanced control technique called a closed-loop stepper is increasingly being used in its place. This paper explains how adding an encoder to the motor will help deliver high torque output, high acceleration, and improved accuracy. This popular motion control technique will match or even exceed the performance of more expensive brushless DC motors.

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