By principally using constant frequency pulse mixing wide f raction driving technology, the chip microprocessors controlling system for real izing stepper angle fraction is researched and analyzed.

• 本文采用单片机控制系统实现步距角细分，主要以恒频脉冲调宽细分驱动技术进行研究与分析，建立了以单片机为核心的微机控制系统并且进行了控制程序的设计与试验。