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Design on a unipolar and unidirectional stepper motor circuit

机译：单极和单向步进电机电路上的设计

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A unidirectional and unipolar stepper motor driver has been designed, for the purpose of effectively solving many existed pressing problems in the stepper motor such as high costs, poor universality, complex circuitry, and inconvenient manipulation and so forth. The unidirectional and unipolar stepper motor will become outstanding as the result of its low costs, stable performance, suitable for computer control and could be driven by unipolar stepper motor. The circuit employs CD4017 to distribute pulse, and applies 74LS02 TTL to converse the single-pass four circulations into dual-pass four circulations, and utilizes the integrated Darlington pairs (Darlington transistors) to amplify the power, and then activates the stepper motor by the amplified power. It has been verified in the experiment that the circuit operates stably and pertains high control accuracy.
机译：设计了一种单向和单极步进电机驱动器，以便有效地解决了诸如高成本，较差的普遍性，复杂电路和不方便的操纵等中存在许多存在的压迫问题。单向和单极步进电机将由于其低成本而稳定，性能稳定，适用于计算机控制，并且可以由单极步进电机驱动。该电路采用CD4017来分配脉冲，并将74LS02 TTL应用于双通过四个循环，并利用集成的达林顿对（Darlington晶体管）放大电源，然后通过坐直电机激活放大功率。在实验中已经验证了电路稳定运行并涉及高控制精度。

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