基于FPGA的步进电机脉宽调制细分驱动器

A PWM Subdivision Driver of Stepping Motor Based on FPGA

为改善步进电机的负载特性,以FPGA为核心,研制了一种恒频脉宽调制细分驱动器。实验证明,所研制的步进电机驱动器不仅体积小,简化了系统设计,减少了级延迟,改善了低频稳定性和高频矩频特性,而且有良好的适应性和自保护能力,提高了驱动器的稳定性和可靠性。

For improving the load characteristics of stepping motor, a constant frequency PWM subdivision driver for stepping motor has been developed based on field programmable gates array （ FPGA ）. Experiments have proved that the developed subdivision driver is not only smaller, sampler in system, can shorten the delay time, improve the stability in low frequency and the torque - speed characteristic in high frequency, but has good self- adaptation and self- protection ability, and its stability and reliability are higher.