"基于单片机和FPGA的两相混合式步进电机控制系统设计"

Stepping motors are widely used in industrial and office automation due to their easy open-loop control and lack of cumulative errors. This undergraduate thesis focuses on the design of a control system for a two-phase hybrid stepping motor, analyzing its working principle and establishing a mathematical model. In selecting the controller, the advantages and disadvantages of different controllers are taken into consideration. The mature technology and simple programming of microcontrollers, along with their low cost, make them a suitable choice. Additionally, FPGAs offer superior performance, high integration, and eliminate the need for A/D conversion chips, making them a valuable component for control systems. The microcontroller is responsible for speed control, direction, and setting the subdivision number of the motor, while the FPGA implements the subdivision drive. The final design solution combines the cost-effective microcontroller with the high-performance FPGA, significantly improving the low-frequency and high-frequency performance of the stepping motor. This design has high practical value and can enhance the overall performance of stepping motor control systems. Keywords: Stepping Motor, FPGA, Microcontroller.