Research and Design of Stepper Motor Subdivided Driving Based on the FPGA
Abstract: Stepper motor subdivision control has been introduced in this paper, the principle of stepping motor subdivision driver on the basis of the analysis and research of which is proposed based on the FPGA control PWM subdivided driving technology. The voltage of each phase winding in each time of stepper motor was generated by FPGA step pulse forming step voltage signal to control, so as to realize the arbitrary subdivision control of stepping motor rotation. The stepping motor subdivision of the controller 16 speed control module, PWM module and the digital comparison module was realized by using VHDL language programming. Realized the precise control of stepper motor speed, reduce the error. Have the advantage of low price and easy to control.
Key Words: FPGA; Stepping motor; Subdivided driving; Pulse width modulation
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