DC Operating Point Analysis of Nonlinear Circuits Using the Variable-Gain Homotopy Method

Ryoma WAKAKI  Kiyotaka YAMAMURA 

Publication
A - Abstracts of IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences (Japanese Edition)  Vol.J95-A  No.6  pp.531-534
Publication Date: 2012/06/01
Online ISSN: 1881-0195
Print ISSN: 0913-5707
Type of Manuscript: LETTER
Category: 
Keyword: 
circuit simulation,  DC operating point analysis,  nonlinear circuit,  homotopy method, 

Full Text(in Japanese): PDF(234.1KB)

Summary: 
In the field of circuit simulation, homotopy methods have been studied by many researchers to overcome the convergence problem in DC operating point analysis. There are several types of homotopy methods. Among them, the variable-gain homotopy method has been studied very actively mainly in Europe and the United States. In this letter, we propose an effective technique for improving the computational efficiency of the variable-gain homotopy method. We also prove the global convergence property of the proposed algorithm.