This paper is on the stepper motor drive design. This design is designed to react against three-phase stepping motor design. The design of the stepper motor through the theoretical knowledge of the study on the basis of this research and further close the stepper motor drive design. The main drive system and drive circuit design, chip select and hardware for research and design. LM 331 will be designed to chip into a voltage / frequency (V / F) conversion, will enter into a certain control voltage pulse width of the signal. Direction control signals generated by the voltage circuit comparison. PMM 8713 for the distribution of pulses integrated chip can be Enter into certain pulse distribution phase sequence control of the same off the pulse. Design of a drive high and low voltage power supply automatically switch technology and constant current chopper-driven approach, reducing the stepper motor of the LFO, the increase of high-frequency stepper motor torque. VMOS use of motor-driven, making stable and reliable power supply. To achieve drive stepper motor-driven, low-speed operation of small vibration, rotating stable high-speed operation, the motor torque output, not stall. And the driver of low cost, simple and reliable circuit, easy to manufacture, repair, and control system supporting ease of use, cost performance, the promotion of a certain value.
