A Novel Algorithm for Improving Convergence Behavior of Circuit Simulators
1989
A novel algorithm based on the Newton projection scheme [1] is proposed to improve the convergence behavior of circuit simulation. The computation experiment shows that the number of iterations to achieve convergence in Newton-Raphson method can be cut by as much as twenty nine-fold, and the convergence behavior of the Newton iteration is made much more robust using this algorithm. Moreover, the implementation of the proposed algorithm in conventional circuit simulators such as SPICE is very easily done. Both the theoretical background and actual implementation of the algorithm are discussed. The experimental circuit and simulation results are also shown.
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