Abstract
Steeping motor is a kind of component using electric pulse signal to control
winding elements to realize angular displacement. Comparing with other electric motor,
it is easier to realize accurate control, no accumulated error and so on so forth. Thus, it
is got extensive application. In order to gain excellent manipulative result, there appears
a lot of stepping motor control system. Among them, the system using MUC as the core
part of the control system is used widely. Many this kind of control systems have done
absolutely good at the step motor drive, such as the technique of constant current
chopper. But some systems are a little bit complicated, which does not match with some
comparatively simple control, causing some waste on investment. Some system is not
easy to operate, weak in alternation. Furthermore, techniques in today’s vocational
teaching materials are entirely different, leading to some kinds of chaos in the
exercitation, not combining some techniques which should be. Consequently, this
focuses on how to design a simple step motor control system, which has strong
adaptability, easy to operate, high dependability, mixing electronic technique, MUC
technique and motor control technique. This thesis will firstly introduce the
development and application situation of stepping motor and some common control
systems and drive techniques. What’s more, it will illustrate the working principle of
step motor, then, using MUC as a main controller to put forward the whole system blue
print of the hardware design. Based on this, all specific designs on electrical circuits in
every module will be followed. Finally, illustrate the steps of how to develop the
software of control system and programmed design.
Key words: Stepping Motor, MUC, Constant Current Chopper
