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三
三相步进电机的三相六拍工作方式，正转的绕组通电顺序：A、AB、B、BC、C、CA、A，反转的通电顺序：A、AC、C、CB、B、BA、B、A。
由于步进电机转子有一定的惯性以及所带负载的惯性，故步进电机的工作过程中不能及时的启动和停止，在启动时应慢慢的加速到预定速度，在停止前应逐渐减速到停止，否则，将产生失步现象。
步进电机的控制问题可总结为两点：
1、产生工作方式需要的时序脉冲；
2、控制步进电机的速度，使它始终遵循加速、匀速、减速的规律工作。
-Three-phase three-phase stepper motor six shot work, is to order the winding power: A, AB, B, BC, C, CA, A, reverse the order of power: A, AC, C, CB, B, BA, B, A. As the stepper motor rotor has a certain degree of inertia, as well as brought about by the inertia load, the stepper motor during the course of work should not start and stop time, start to be slowly accelerated to a predetermined speed, the stop should be to slow down gradually to the stop, otherwise, will result in out-of-step phenomenon. Stepper motor control problems can be summarized in two points: one, resulting in the need to work the timing pulse 2, control the speed of stepper motor, so that it always followed acceleration, velocity, deceleration of the law of the work.
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MAX485 applications is very wide, and can be applied to long
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红外通信是利用950nm近红外波段的红外线作为传递信息的媒体，即通信信道。发送端采用脉时调制（PPM）方式，将二进制数字信号调制成某一频率的脉冲序列，并驱动红外...
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- 积分：1
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DS18B20 chip data (English), there is a need to download the Friend!
DS18B20芯片资料（英文），有需要的朋友请下载！-DS18B20 chip data (English), there is a need to download the Friend!
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LED digital tube
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键盘扫描算法有很多中，这个程序在IAR编译器下，用C语言描述了其中一种算法...
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LPC932内部EEPROM操作程序
LPC932内部EEPROM操作程序-LPC932 internal operating procedures EEPROM
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NS2教程――非常适合初学者学习使用的一本好教程
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12,14,16 dot matrix display Chinese characters files characters dot matrix displ...
12,14,16点阵汉字显示文件
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NRF905 915M based on the frequency of 232 communications
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