The Study Of Stepper Motor Evenly Subdivided Drives Based On ARM

Steper motor is a kind of electromechanical component that is driven in step angle or displacementby electric pulse signal. It is used widly in the field of mechanical and electrical engineering .The performance of steper motor depends on its driving method largely. The evenly subdivided driver of three-phase hybrid steper motor is designed in the dissertation. The hybrid steper motor system's performance is enhanced.Simulation and experiment prove its credibility.In the dissertation,the structure and the working principles of Hybrid Steper Motor is introduced.Based on the mathematics modle of three-phases hybrid steper motor,the expression of torque was given. In the following part, the theory of subdivide and method of evenly subdivide was introduced. As an example,the evenly subdived drive's current of each stator winding of three-phase stepper motor was given.A three-phase stepper motor modle was modled with the finite element analysis software ANSOFT. Through the simulation result, the stopping position of step motor was gotten.In last part,the hardware and software structure is given.During designing process,the most control function was finished by hardware. It enhanced the system'General-Utility and reduced the complexity of software.