Simple stepper motor drivers entirely energize or entirely de-energize the field windings, leading the rotor to "cog" to a limited number of positions; more sophisticated drivers can proportionally control the power to the field windings, allowing the rotors to position between the cog points and thereby rotate extremely smoothly. This mode of operation is often called microstepping. Computer controlled stepper motors are one of the most versatile forms of positioning systems, particularly when part of a digital servo-controlled system. COUNT 4
QSN1 What is a trait of a sophisticated stepper motor? ANS1 proportionally control the power to the field windings QSN2 What does proportinal control of the field windings in a stepper motor achieve? ANS2 rotate extremely smoothly QSN3 What is another name for smooth rotation? ANS3 microstepping QSN4 With what other device are stepper motors most versatile? ANS4 digital servo-controlled system