Introduce the drive control of step motor and the PWM principle of DSP, a detailed discuss on accelerate and decelerate control of step motor also include.
介绍步进电机的驱动控制和DSP的PW M脉宽调制原理，详细阐述了DSP实现步进电机的加减速控制问题。
Supercapacitor based energy saving system can absorb the braking energy when motor decelerate, which achieve energy saving.
采用超级电容器储能的节能系统，能够在电机制动时回收制动能量，从而实现了能量的节约。
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