Calculation of Symbolic Sensitivities for Large-Scale Circuits in the Sequence of Expressions Form via the Transimpedance Method

Balik, Franciszek; Rodanski, Benedykt

doi:10.1023/b:alog.0000034828.36771.e3

Cited by 12 publications

(15 citation statements)

References 10 publications

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“…In case of a larger circuit, this admittance can be described by some sequence of expressions (SoE) (Balik and Rodanski, 2004),x k is the vector of parameters (such as R, C, and L) included in the kth module. The increment (1) can be calculated using the concept of the two-port transimpedance and its multiparameter largechange sensitivities (Balik, 2009;Balik and Rodanski, 2004).…”

Section: Lcs Ac Analysis Methods -Theoretical Backgroundmentioning

confidence: 99%

“…The increment (1) can be calculated using the concept of the two-port transimpedance and its multiparameter largechange sensitivities (Balik, 2009;Balik and Rodanski, 2004). Two-port transimpedance Z(a, b) expresses the relation between the voltage responses in the port a and the current excitation in the port b.…”

Section: Lcs Ac Analysis Methods -Theoretical Backgroundmentioning

confidence: 99%

“…These increments are shown in Figure 1 as Dy k or DY k . As it was shown in Balik and Rodanski (2004), the transimpedance has the following property: the increment of the two-port transimpedance due to the jth admittance large change Dy j , is:…”

Section: Network Function and Its Sensitivity Calculationmentioning

confidence: 96%

“…The network immitance functions H (p) can be expressed by two-port transimpedances (Balik and Rodanski, 2004). The voltage transmittance in nominal conditions (without any change) is:…”

Section: Network Function and Its Sensitivity Calculationmentioning

confidence: 99%

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Effective optimization of integrated circuits with embedded passive modules by applying semisymbolic LCS AC analysis method

Balik

2011

Microelectronics International

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Purpose -The purpose of this paper is to present a new method of optimization of electronic integrated circuits (IC) with imbedded passive modules (PM). The reported method constitutes an attempt to streamline the optimization process in the AC electrical model stage of the RF Microsystems design. Design/methodology/approach -In this method, the PM are described in symbolic form while the IC blocks remain described numerically. Whole PM can be represented as some sequence of expressions containing crucial model parameters, nominal and parasitic, which are first precompiled and next, merged automatically with the main program. Findings -The input data can be updated online according to the user's desiderata. Further, the system offers the possibility to optimize PM in diverse circumstances as well as using different technologies, and including parasitic effects. Originality/value -Usage of the semi-symbolic method for IC with embedded PM optimization based on large-change sensitivity AC analysis method, which appears to be a very efficient and flexible approach to solving such problems.

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Section: Lcs Ac Analysis Methods -Theoretical Backgroundmentioning

confidence: 99%

Section: Lcs Ac Analysis Methods -Theoretical Backgroundmentioning

confidence: 99%

Section: Network Function and Its Sensitivity Calculationmentioning

confidence: 96%

“…The network immitance functions H (p) can be expressed by two-port transimpedances (Balik and Rodanski, 2004). The voltage transmittance in nominal conditions (without any change) is:…”

Section: Network Function and Its Sensitivity Calculationmentioning

confidence: 99%

See 2 more Smart Citations

Effective optimization of integrated circuits with embedded passive modules by applying semisymbolic LCS AC analysis method

Balik

2011

Microelectronics International

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“…The difference is that the analysis is now much faster done by a computer, and does not make many errors [3]. The sensitivity analysis plays an important role in determining the critical design variables in analog circuit synthesis [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Multiparameter symbolic sensitivity analysis of active circuits by using nullor model and modified Coates flow graph

Asenova

Balik

2012

2012 Elektro

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A new method of the multiparameter symbolic sensitivity determination based on the equivalent nullor model of active devices and modified Coates flow graph is presented. The proposed method is simple and performs the multiparameter symbolic sensitivity analysis of a synthesized network with respect to various circuit parameters. A special software tool called "HoneySen" has been developed to implement the suggested method. All partial transfer functions and partial sensitivities can be determined, too. Symbolic results for the multiparameter sensitivity of the voltage transfer function for a fourth-order low pass filter is presented. Comparison of the presented method with the Transimpedance method is performed.

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Efficient generation of compact symbolic network functions in a nested rational form

Filaretov

Gorshkov

2020

Circuit Theory & Apps

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SummaryThis paper presents the extension of generalized parameter extraction method for direct circuit function generation in a fully symbolic form of rational expressions or a nested s‐expanded polynomial. The new formula for implicit extraction of parameters that allows effective factoring by grouping of determinants of circuits containing any linear models of active elements, such as controlled sources, nullors, and pathological mirrors, is proposed. The concept of nullor with parameter is used for implicit extraction. The rules of optimal selection of parameters for extraction are presented. The proposed algorithm of symbolic analysis is implemented in the CirSym program, which is available online. The paper discusses the results of automatic analysis of several large active circuits, as well as determinants of matrixes and passive topologies, in terms of compact size and minimization of the number of arithmetic operations. Experimental results demonstrate that the expressions of determinants derived by CirSym are more compact than the results of the factorization algorithms of commercial computer algebra systems. The comparison with several other symbolic analysis algorithms shows that CirSym is the only available program that provides the exact calculation of the symbolic function of large circuits in the s‐expanded form with every coefficient being a compact‐nested expression.

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Calculation of Symbolic Sensitivities for Large-Scale Circuits in the Sequence of Expressions Form via the Transimpedance Method

Cited by 12 publications

References 10 publications

Effective optimization of integrated circuits with embedded passive modules by applying semisymbolic LCS AC analysis method

Effective optimization of integrated circuits with embedded passive modules by applying semisymbolic LCS AC analysis method

Multiparameter symbolic sensitivity analysis of active circuits by using nullor model and modified Coates flow graph

Efficient generation of compact symbolic network functions in a nested rational form

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