Journal ArticleDOI
The modified nodal approach to network analysis
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TLDR
In this article, a modified nodal analysis (MNA) method is proposed, which retains the simplicity and other advantages of nodal Analysis while removing its limitations, and a simple and effective pivoting scheme is also given.Abstract:
The nodal method has been widely used for formulating circuit equations in computer-aided network analysis and design programs. However, several limitations exist in this method including the inability to process voltage sources and current-dependent circuit elements in a simple and efficient manner. A modified nodal analysis (MNA) method is proposed here which retains the simplicity and other advantages of nodal analysis while removing its limitations. A simple and effective pivoting scheme is also given. Numerical examples are used to compare the MNA method with the tableau method. Favorable results are observed for the MNA method in terms of the dimension, number of nonzeros, and fill-ins for comparable circuit matrices.read more
Citations
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The Waveform Relaxation Method for Time-Domain Analysis of Large Scale Integrated Circuits
TL;DR: Sufficient conditions for convergence of the WR method are proposed and examples in MOS digital integrated circuits are given to show that these conditions are very mild in practice.
Journal ArticleDOI
Simulation of high-speed interconnects
Ramachandra Achar,Michel Nakhla +1 more
TL;DR: In this review paper various high-speed interconnect effects are briefly discussed, recent advances in transmission line macromodeling techniques are presented, and simulation of high- speed interconnects using model-reduction-based algorithms is discussed in detail.
Overview of the Ptolemy project
TL;DR: The Ptolemy project studies heterogeneous modeling and design of concurrent systems, particularly those that mix technologies, including for example analog a digital electronics, hardware and software, and electronics and mechanical devices.
Journal ArticleDOI
On a new approach for the simulation of transients in power systems
TL;DR: In this paper, a new simulation tool named EMTP-RV is presented, which uses a new matrix formulation for computing load-flow, steady state and time-domain solutions and an open-architecture graphical user interface (GUI) is developed to maximize flexibility and allow creating and maintaining complex designs.
Journal ArticleDOI
DELIGHT.SPICE: an optimization-based system for the design of integrated circuits
TL;DR: The DELIGHT.SPICE tool, a union of the DELIGHT interactive optimization-based computer-aided-design system and the SPICE circuit analysis program, is presented, yielding substantial improvement in circuit performance.
References
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Journal ArticleDOI
The Elimination form of the Inverse and its Application to Linear Programming
TL;DR: In this article, a form of inverse which is especially convenient to obtain and use for matrices with a high percentage of zeros is discussed, and the application of this form in linear programming is also discussed.
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The Sparse Tableau Approach to Network Analysis and Design
TL;DR: The tableau approach to automated network design optimization via implicit, variable order, variable time-step integration, and adjoint sensitivity computation is described and the bulk of computation and program complexity is located in the sparse matrix routines.
Journal ArticleDOI
Computer analysis of nonlinear circuits, excluding radiation (CANCER)
TL;DR: CANCER is a reasonably general circuit analysis program especially suited to integrated-circuit simulation and derives its efficiency from the exploitation of sparse matrix, adjoint, and implicit integration techniques.
Journal ArticleDOI
BIAS-3-A program for the nonlinear D.C. analysis of bipolar transistor circuits
W.J. McCalla,W. Howard +1 more
TL;DR: A computer program for both analog and digital circuits that formulates and solves nonlinear equations for d.c. node voltages and transistor operating points is described and can be effectively simulated.