Microstepping

The lure of Microstepping a two-phase stepper motor is compelling. There are three commonly used excitation modes for step motors; these are full step, half step and microstepping. In full step operation, the motor moves through .

A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a. Then, as the microstepping divisor number grows, step size repeatability degrades. At large step size reductions it is possible to issue many . Modes of operation such as full stepping, half stepping, microstepping, and operation at different current limits can be easily visualized on such .

Microstepping provides the ability to finely control movement of a stepper motor. The ability to achieve much smaller individual steps is . Also, we want to increase the resolution of a stepper motor for more accurate positioning. Modern stepper motor drivers feature microstepping, . Microstepping is a way to make small steps even smaller for stepper motors. I currently have my drivers (Compumotor A-Series) set up at 10x microstepping.

According to my number crunching this gives me a resolution . A)—torque and speed ripple as function of load angle, full-step mode. B)—torque and speed ripple as function of load angle, microstepping 1⁄8-full-step mode.