Title :
Hierarchical model-order reduction for robust design of parameter-varying systems
Author :
Hauser, Matthias ; Salzig, Christian
Author_Institution :
Fraunhofer Inst. for Ind. Math., Kaiserslautern, Germany
Abstract :
In this paper we introduce a robust method for the model-driven design of reduced parameter-varying analog systems. The ideas behind our approach are twofold: On the one hand we present an algorithm for decreasing the model order of large systems. It utilizes the hierarchical structure of compound systems to simplify component models while ensuring the validity of the composed model. On the other hand we announce a statistical method for reducing circuit equations with parameter variations. Combining both we generate symbolic behavioral models of real-world analog circuits under process variations. Finally, for illustrating we apply the overall procedure to the operational amplifier OpAmp 741 with varying parameters.
Keywords :
operational amplifiers; statistical analysis; OpAmp 741; circuit equation reduction; component models; compound systems; hierarchical model-order reduction; hierarchical structure; model-driven design; operational amplifier; real-world analog circuit model; reduced parameter-varying analog systems; robust design method; statistical method; symbolic behavioral models; Analog circuits; Analytical models; Computational modeling; Equations; Integrated circuit modeling; Mathematical model; Reduced order systems;
Conference_Titel :
Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2012 International Conference on
Conference_Location :
Seville
Print_ISBN :
978-1-4673-0685-0
DOI :
10.1109/SMACD.2012.6339430
