The design using ATMEL89C51 single chip to control the step-motor with its controller, driving circuit and LED display circuit to realize step motor open-loop control were introduced.
通过ATMEL89C 51单片机对步进电机进行控制，主要介绍了步进电机控制器、驱动电路和LED显示电路的设计，实现了步进电机的开环控制。
On the basis of three-phase inverting circuit, this paper describes how to make the control method of open loop system in closed loop system.
以三相逆变电路为基础，阐述了如何将开环系统的控制方法用于闭环系统，并且介绍了这种新的控制方法在实际中的应用，证明了该方法的有效性。
A control circuit comprises a voltage open-loop control circuit and a semi-periodic current hysteresis-loop control circuit.
控制电路包含电压开环控制电路，半周期电流滞环控制电路。
A control circuit comprises a voltage open-loop control circuit and a semi-periodic current hysteresis-loop control circuit.
控制电路包含电压开环控制电路，半周期电流滞环控制电路。
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