Browsing by Author "Tan, Mehmet Ali"

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    Improving AWE accuracy using multipoint Pade approximation
    (IEEE, 1994-05-06) Çelik, Mustafa; Ocali, Ogan; Tan, Mehmet Ali; Atalar, Abdullah
    A new method is proposed for dominant pole-zero analysis of large linear circuits containing both lumped and distributed elements. This method is based on a multipoint Pade approximation. It finds a reduced order s-domain transfer function using a data set obtained by solving the circuit at only a few frequency points. The proposed method yields more accurate computation of transient and frequency responses with respect to the AWE-type techniques.
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    Piecewise linear asymptotic waveform evaluation for transient simulation of electronic circuits
    (IEEE, 1991-06) Dikmen, C. T.; Alaybeyi, M. M.; Topcu, Satılmış; Atalar, Abdullah; Sezer, E.; Tan, Mehmet Ali; Rohrer, R. A.
    A general purpose circuit simulation program, PL-AWE (piecewise linear asymptotic waveform evaluator) is developed especially for the analysis of VLSI circuits. PL-AWE uses the asymptotic waveform evaluation (AWE) technique, which is a new method to analyze linear(ized) circuits, and piecewise-linear (PL) models to represent nonlinear elements. AWE employs a form of Padeapproximation rather than numerical integration to approximate the behavior of linear(ized) circuits in either the time or the frequency domain. The authors discuss the internal workings of the program, and indicate its effectiveness in terms of several illustrative examples.
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    A reduction in the number of active components used in transconductance grounded capacitor filters
    (IEEE, 1990) Tan, Mehmet Ali; Schaumann, R.
    The number of active components in transconductance grounded capacitor filters is reduced. This reduction is possible in the case where capacitor loops and/or inductor cutsets exist in LC-ladder prototype. A more significant reduction is obtained in the OTA-C (operational transductance amplifier-capacitor version. The number of OTAs is reduced to 7 from 13 while the total capacitance value remains intact. It is also important to note that all transconductance elements or OTAs are identical except possibly one. The only drawback of this reduction is implementation of some floating capacitors instead of all grounded capacitors.