DIR输入逻辑信号（0或3.3V） STEP输入逻辑信号脉冲（0或3.3V）本人没用过A4988,但你给出的数据有明显错误: 1、VBB(电机电源):最小8V最大35V,你用(因为a4988驱动集成到板子上了，所以必须用a4988驱动，我有需要比较大的扭矩，a4988看说明是最大电流是2a，建...
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交—直—交变频器按照交流电机电源电压的控制方法的不同，分为电压型和电流型两种。
Pay - Direct - cycloconverter supply voltage AC motor in accordance with the different control methods are divided into voltage-and current-mode two.
机顶盖检修口设有安全检测开关，形成断电安全装置，当检修口打开时自动切断电机电源，确保检修人员的人身安全。
There is safety switch at the inspection hatch of the hood. If the hatch is opened, the power of motor will automatically cut off to ensure the safety of inspection personnel.
单片机在步进电机电源部分控制中的应用，使步进电机能实现运行、调速及细分运行，并能提高设备运行的精度和平稳性。
They can make step motors run normally at an adjustable speed and in a subdividing running way and improve the precision and smoothness of the equipment.
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