CDP Servo System Control using Fuzzy Logic Control

Several servo mechanisms, such as focusing, spindling, tracking and sledding, are continuously balanced to make compact disc player (CDP) to play audio or video contents. However, due to the inconsistent uneven surface of the disc, the speed control of a spindle motor along the track radius, and unexpected random shock; the servo mechanism is very complicatedly driven in non-linear method. This paper will discuss on how to approach this method, how to develop and how to evaluate each algorithm based on the model of each servo mechanism using Fuzzy Logic Control1.