Generalized leapfrog scheme for large-scale circuit simulation

This paper describes a generalized leapfrog scheme for transient analyses of large-scale circuits. First, the leapfrog scheme developed in the basic latency insertion method (LIM) is described and the characteristics of the method and the scheme are discussed. Then, we propose the generalization technique of the leapfrog scheme which can be applied to the transient analysis of an ill-constructed circuit unsuitable for the basic LIM. Numerical results show that our proposed approach is applicable and efficient for the fast simulation of large-scale networks.