Design of The Control System of Step-motor
Abstract:The open-loop system which is posed by step-motor is simple, cheap and
very practical, so there are very wide range of applications in printers and other office
automation equipment and various control devices, and many other fields.
This article describes one design of step-motor system based on microcontroller.The
program of the preparation of a motor , reverse, speed up, slow down, stop is written by pile
language. The above functions are realized through the microcontroller, motor driver chip
ULN2004 and correspond key , and the work state of stepper motor is diaplayed through the
light-emitting diode. This article introduces the principle of stepper motor and single-chip
microputer, the system hardware circuit, the program ponents, while software and hardware for
the debugging, at the same time introduces the problems which are appeared in the
debugging process and the solutions of the problems . The design has the advantages of
clear , high reliability, strong stability, etc.,and the above-mentioned functions are realized
through the debugging..
Key Words: Stepper motor; Pulse-width modulated; driving mechanism; singlechip;
rotation
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