A support system for analog circuit design with hierarchical library

Inoue, Y.; Katoh, M.; Yasuda, Y.; Satomi, H.; Nakaya, K.

doi:10.1109/30.85579

IEEE Trans. Consumer Electron.

1991

DOI: 10.1109/30.85579

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A support system for analog circuit design with hierarchical library

Y. Inoue

M. Katoh

Y. Yasuda

et al.

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Cited by 3 publications

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A practical algorithm for DC operating‐point analysis of large‐scale circuits

Inoue

1994

Electron Comm Jpn Pt III

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SPICE‐type general‐purpose circuit simulators are used widely as a support tool for circuit design. It often happens, however, that the do operating‐point analysis does not converge. To cope with such a situation, various approaches have been proposed based on continuation methods with the global convergence property, but these have yet to come to the stage of practical application to large‐scale circuits. This paper proposes a practical algorithm which can be implemented on the general‐purpose circuit simulators with modified nodal formulation, for determining the de operating‐point of large‐scale circuits. As the first step, the concept of “modified cut‐set analysis” is introduced and some properties of the modified nodal equation are presented. Then it is shown, in practical circuits, that the convergence of the algorithm is theoretically guaranteed. The proposed algorithm is then implemented on an existing general‐purpose circuit simulator and applied to a bipolar analog LSI to demonstrate its effectiveness. For the LSI circuit formulated in 18, 553 modified nodal equations, the de operating point was determined in 270 minutes using an IBM RS6000‐550.

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A practical algorithm for DC operating‐point analysis of large‐scale circuits

Inoue

1994

Electron Comm Jpn Pt III

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Development of VCR video/audio signal processing LSI chip

Ichikawa

Sadakata

Anzai

et al. 1996

IEEE Trans. Consumer Electron.

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A fixed-point homotopy method for solving modified nodal equations

Yamamura

Sekiguchi²,

Inoue

1999

IEEE Trans. Circuits Syst. I

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A support system for analog circuit design with hierarchical library

Cited by 3 publications

References 5 publications

A practical algorithm for DC operating‐point analysis of large‐scale circuits

A practical algorithm for DC operating‐point analysis of large‐scale circuits

Development of VCR video/audio signal processing LSI chip

A fixed-point homotopy method for solving modified nodal equations

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