For the same reason, the current protection method can only protect the motor to a certain extent.
由于同样的原因，电流保护方法也只能在一定程度上保护了电动机。
This paper proposes a restart method for an asynchronous motor drive system without speed sensor.
介绍一种无速度传感器异步电动机拖动系统的再起动方法。
On this base, the closed - loop control method of hybrid step motor using the harmonic back EMF is investigated, and the microcomputer control system of step motor is designed.
在此基础上研究了利用谐波反电势信号实现混合式步进电动机闭环控制的方法，设计了步进电动机的微机控制系统。
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