一种采用脉冲控制方式，此种驱动器与电机闭环，但不反馈到数控系统，这种驱动器在某种程度上可称为开环控制的伺服控制。
A kind of the pulse control mode, the drive and motor closed loop, but not to the numerical control system, the feedback device, in a sense, can open loop control called the servo control.
介绍在刚性连接方式下，用两台交流伺服电机同时驱动同一负载方案的组成、硬件和软件，给出了该系统的实验结果。
Introduce the composition, the hardware and software for two AC servo motors which drive loads simultaneously under rigid connection. Also Present the experimental results.
利用PWM驱动方式控制电机的转动，并设计出了直流伺服控制系统硬件电路图。
Using PWM to drive motor, and we design a circuit in DC serve control system.
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