@article{Маркина_2013, title={Comparative characteristics of different strategies stability of analog circuits optimization}, url={https://radap.kpi.ua/radiotechnique/article/view/671}, DOI={10.20535/RADAP.2013.55.61-70}, abstractNote={<span style="text-decoration: underline;">Introduction</span>. Methodology of analog circuits designing was developed before on the basis of control theory application and it allows to use important concepts and results of this theory. <span style="text-decoration: underline;">Problem formulation</span>. A problem of circuit optimization is defined as a controllable dynamic process. This approach gives possibility to control the process of optimization by means of changing special control functions during the process. A function of Lyapunov that was defined for the process of electronic circuit optimization is a useful characteristic that allowing to compare different strategies of optimization. Thus the behavior of the special function, being logarithm from the function of Lyapunov, defines a stock of stability of optimization strategy and well correlates with total processor time of circuit optimization. <span style="text-decoration: underline;">Numerical results</span>. The process of optimization of transistor amplifier shows the principal advantage of proposed approach. There are new strategies of circuit optimization that have a big time gain with respect to the traditional approach. A time gain for some strategies achieve 50-60 times. A function that is logarithm from the function of Lyapunov describes very well the behavior the optimization process. The total processor time depends on properties of strategy and has a strong correlation with behavior of Lyapunov function of optimization process. The analysis shows the perspectives in searching of the best optimization strategy. <span style="text-decoration: underline;">Conclusions</span>. The analysis of behavior of a special function that describes a process of circuit optimization allows obtaining in relation of complete time of electronic circuit designing. This function is a practical instrument at the choice of the most perspective strategies of optimization. In this case we can obtain a big acceleration of the optimization process.}, number={55}, journal={Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia}, author={Маркина, Т.М.}, year={2013}, month={Dec.}, pages={61-70} }