DC Motor Servo Controller Using PC Parallel Port

Tan, Shi Chian (2009) DC Motor Servo Controller Using PC Parallel Port. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The usage of machine replacing the work done by human in this modem age 1s increasing rapidly. It is because automated machine can not only increase productivity, it can also do work that are hard to be done by human being such as lifting heavy object or move an object to position we set with high degree of rotation. In a DC Motor Servo Controller Using PC Parallel Port circuit, PC will send pulse to PIC and the PIC will send the signal to reverse and forward the de motor. Furthermore, rotation of DC motor combined with a potential meter to make it function like feedback. Feedback signal (analog) will be transferred through PI controller (analog to digital converter, PIC16F877 A), and then PIC (ADC module) will convert the analog signal to digital signal and send it back to PC. With this system one can easily make the de motor hold their position and control the degree of rotation. This system normally use at CCTV, robot arms, fabrication machine and many other. To do such job, one can implement electrical or electronic system. One of the most popular function controls in electronic system is motor servo controller which can be DC or AC motor control.

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