基于DSP的二相混合式步进电动机SPWM细分驱动

o the two-phase hybrid stepping motor, if the winding current is two-phase symmetrical AC current, the motor will have better performance and run smoothly. On the condition of open loop with position, this driving mode is a mini-step drive in fact. This paper realizes the SPWM drive of two-phase hybrid stepping motor both in hardware and software based on DSP, besides, stator-winding current experimental curves are given out, result has practical significance and practicability.