Yazar "Arslan, Emre" seçeneğine göre listele

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    High Performance Wideband CMOS CCI and its Application in Inductance Simulator Design
    (Univ Suceava, Fac Electrical Eng, 2012) Arslan, Emre; Metin, Bilgin; Herencsar, Norbert; Koton, Jaroslav; Morgul, Avni; Cicekoglu, Oguzhan
    In this paper, a new, differential pair based, low-voltage, high performance and wideband CMOS first generation current conveyor (CCI) is proposed. The proposed CCI has high voltage swings on ports X and Y and very low equivalent impedance on port X due to super source follower configuration. It also has high voltage swings (close to supply voltages) on input and output ports and wideband current and voltage transfer ratios. Furthermore, two novel grounded inductance simulator circuits are proposed as application examples. Using HSpice, it is shown that the simulation results of the proposed CCI and also of the presented inductance simulators are in very good agreement with the expected ones.
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    High-performance CMOS CCI in a 0.35 ?m CMOS technology and a new all-pass filter application
    (Tubitak Scientific & Technological Research Council Turkey, 2013) Arslan, Emre; Metin, Bilgin; Cicekoglu, Mehmet Oguzhan; Morgul, Avni
    A differential pair-based, high-performance, first-generation current conveyor is proposed. The proposed circuit is laid out using the Mentor Graphics IC Station layout editor. The performance characteristics have been determined from HSpice postlayout simulations using the Austria Mikro Systeme 0.35 mu m, 3.3 V process parameters. During the simulations, +/- 1.65 V supply voltages and a 25 mu A biasing current are used. The power consumption is about 1.12 mW. The circuit also has very high voltage swings on ports X and Y, a very small impedance value on port X, high impedance values on ports Y and Z, and high-valued current and voltage transfer bandwidths. It is shown that the presented circuit can satisfy both the low-voltage/low-power and high-frequency performance current conveyor needs of the analog circuit applications. Furthermore, 2 new all-pass filter circuits as application examples are given and a procedure that can be used to search for the opportunities that would result from the use of the modified current conveyors is presented. Some special circuit topologies and new circuit function possibilities can be obtained by redesigning circuits with modified current conveyors, which is not possible with a standard current conveyor. The proposed approach is expected to allow deeper insight into circuit synthesis using modified current conveyors.
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    ON THE REALIZATION OF HIGH PERFORMANCE CURRENT CONVEYORS AND THEIR APPLICATIONS
    (World Scientific Publ Co Pte Ltd, 2013) Arslan, Emre; Minaei, Shahram; Morgul, Avni
    In this work, a wideband and high-performance CMOS implementation of 2nd-generation current conveyor (CCII) is proposed. The proposed circuit is composed of a high performance voltage follower stage which is based on differential pairs to provide high voltage swings on input and output ports and a current follower stage. It is shown that the proposed voltage follower stage can be used to implement high performance 1st and 3rd-generation current conveyors (CCI and CCIII, respectively) that have very small equivalent impedances on ports X, high equivalent impedances on ports Y and Z and also high-valued voltage and current transfer bandwidths. 2nd and 3rd order filter circuits as well as a half-wave recti filer circuit are given to show the performance and usefulness of the proposed current conveyor circuits. The simulation and experimental results are given to verify the theoretical analyses.
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    SELF-BIASING CURRENT CONVEYOR FOR HIGH FREQUENCY APPLICATIONS
    (World Scientific Publ Co Pte Ltd, 2012) Arslan, Emre; Morgul, Avni
    A new, self-biasing, differential pair-based and high performance CMOS CCII circuit is proposed which uses no additional biasing voltage or current sources other than the two supply rails. The proposed circuit has high voltage swings on ports X and Y, very low equivalent impedance on port X, high equivalent impedances on ports Y and Z and also wideband voltage and current transfer ratios. The noise analysis of the proposed CCII circuit is studied. Input referred noise voltage at high impedance port Y and input referred noise current at low impedance port X are obtained to form the noise model. Some filter circuits are selected from the literature and their noise comparisons are performed. It is shown that the noise values can differ greatly even though the filter circuits or the passive element values are identical.