Abstract
In recent years, step motors are widely used as digital actuators. The machine structures of step motors can be divided into permanent magnet type and variable reluctance type.
This paper presents the investigations on the analysis of dynamic performances of variable reluctance type step motor. In these investigations, it is shown that the solutions of phase modes of a step motor is derived from confluent hypergeometric equation. And measured one pulse response of a step motor can be approximated by the solutions of this equation. By analyzing this equation, the relations between the behaviors and the parameters are obtained.
