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1、（1） 步进电机基本控制电路部分简介中英文对照中文介绍 步进讲解成交的这个部分与基本的最后阶段推进电路为步进电动机。 这个电路在每马达绕围绕关于一个唯一问题，断断续续交换潮流和控制它的方向。在这个部分谈论的电路连接直接地到马达绕和马达电源，并且这个电路是由确定的一个数字系统控制的当开关被关闭或时。 这个部分包括马达的所有类型，从必要的基本的电路控制一个易变的勉强马达，对必要的H桥梁电路控制一个双极永久磁铁马达。 激励电路每类说明以实用例子，但这些例子没有意欲作为买得到的控制电路的详尽的编目，亦不是提供这里意欲的信息替代品对于发现在制造商的组分数据表为零件被提及的信息。 这个部分只包括最基本的控
2、制电路为马达每类。 所有这些电路假设，马达电源提供推进电压没有大于马达的对估计的电压，并且这极大限制马达表现。下个部分，关于当前有限的推进电路，包括实用高性能激励电路。典型的控制器为变数不愿走马达是在图 3.1 中被显示的大纲上的变化: 在图 2.1 中，盒子用来表现开关;一控制单位不被不,负责提供控制信号在适当的次打开而且关开关为了要快速旋转马达。 在许多情况，控制单位将会是计算机或可设计的接口控制器,由于软件直接的产生被需要控制开关的输出，但是在其他的情况，附加的控制电路被介绍,有时免费的! 马达的卷，螺线形电导管和相似的装置是所有的归纳负荷。同样地，涌流经过马达的卷不能够被把打开或走开即
3、时不包括无穷的电压而! 当开关控制马达的卷是关闭的时候,允许涌流流动,结果这是在方面的慢提高涌流。 当开关控制马达的卷被打开的时候, 结果这是一支能严重的损害开关的电压长钉除非照料被采取适当的处理它。英文对照This section of the stepper tutorial deals with the basic final stage drive circuitry for stepping motors. This circuitry is centered on a single issue, switching the current in each motor winding
4、 on and off, and controlling its direction. The circuitry discussed in this section is connected directly to the motor windings and the motor power supply, and this circuitry is controlled by a digital system that determines when the switches are turned on or off. This section covers all types of mo
5、tors, from the elementary circuitry needed to control a variable reluctance motor, to the H-bridge circuitry needed to control a bipolar permanent magnet motor. Each class of drive circuit is illustrated with practical examples, but these examples are not intended as an exhaustive catalog of the com
6、mercially available control circuits, nor is the information given here intended to substitute for the information found on the manufacturers component data sheets for the parts mentioned. This section only covers the most elementary control circuitry for each class of motor. All of these circuits a
7、ssume that the motor power supply provides a drive voltage no greater than the motors rated voltage, and this significantly limits motor performance. The next section, on current limited drive circuitry, covers practical high-performance drive circuits. Typical controllers for variable reluctance st
8、epping motors are variations on the outline shown in Figure 2.1:Figure 2.1In Figure 2.1, boxes are used to represent switches; a control unit, not shown, is responsible for providing the control signals to open and close the switches at the appropriate times in order to spin the motors. In many case
9、s, the control unit will be a computer or programmable interface controller, with software directly generating the outputs needed to control the switches, but in other cases, additional control circuitry is introduced, sometimes gratuitously! Motor windings, solenoids and similar devices are all ind
10、uctive loads. As such, the current through the motor winding cannot be turned on or off instantaneously without involving infinite voltages! When the switch controlling a motor winding is closed, allowing current to flow, the result of this is a slow rise in current. When the switch controlling a motor winding is opened, the result of this is a voltage spike that can seriously damage the switch unless care is taken to deal with it appropriately.
