An efficient time step control method in transient simulation for DAE system

Author

Jian Yao ; Tianshi Wang ; Roychowdhury, Jaijeet

Author_Institution

Inst. of Microelectron., Tsinghua Univ., Beijing, China

fYear

2014

Firstpage

44

Lastpage

47

Abstract

Adaptive time step control is very important or even crucial in transient simulation for the efficiency of a circuit simulator. Existing methods are mainly based on the formula of the local truncation error (LTE) for solving ordinary differential equations (ODEs), which is an approximation for the circuit simulator solving a system of nonlinear differential algebraic equations (DAEs). In this work, we derived the formula of LTE for DAE system and proposed a new time step control method. Experimental results show that the proposed method works well for industrial circuits.

Keywords

adaptive control; circuit simulation; differential algebraic equations; nonlinear differential equations; DAE system; LTE; ODE; adaptive time step control; circuit simulator; industrial circuits; local truncation error; nonlinear differential algebraic equations; ordinary differential equations; transient simulation; Accuracy; Equations; Integrated circuit modeling; Least squares approximations; Mathematical model; RLC circuits; Transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems (ICECS), 2014 21st IEEE International Conference on

Type

conf

DOI

10.1109/ICECS.2014.7049917

Filename

7049917