New Method of Designing Controller for Uncertain Differential-Difference Systems and Application to Time-Delay Operational Amplifier System

This study combines the feedback linearization method and our recent researches of Chen electrical unifying approach to propose a global tracking controller design for nonlinear uncertain differential-difference systems with time delay. One example, which cannot be solved by the first paper on the almost disturbance decoupling problem, is presented in this study to show the essential points that the tracking performance is easily solved by the proposed approach. The study applies Chen electrical unifying approach to take the place of using the disorganized virtual ground technique and the Kirchhoff's law for those traditional approaches. In order to show its significant practicability, the study has firstly designed an easy-to-implement adder and a time-delay circuit, and an unstable time-delay operational amplifier control system based on the Chen electrical unifying approach, and then has proposed a stable controller.