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Methodology of electrochemical capacitor quality control with fractional order model
AEU - International Journal of Electronics and Communications, 2018Abstract This article proposes a methodology of electrochemical capacitor quality control using fractional order models for porous electrode behaviour description. The main advantage of fractional order electrochemical capacitor modeling is the absence of high-order polynomials in transfer functions under the condition of low impedance approximation ...
Valeriy Martynyuk +3 more
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International Journal of Systems Science, 2016
In this paper, based on the concept of restricted difference basis RDB for a natural number, the general structures of the pseudo state-space realisations of some classes of commensurate fractional-order transfer functions are obtained. It is shown that the number of needed fractional-order capacitors for implementing a transfer function belonging to ...
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In this paper, based on the concept of restricted difference basis RDB for a natural number, the general structures of the pseudo state-space realisations of some classes of commensurate fractional-order transfer functions are obtained. It is shown that the number of needed fractional-order capacitors for implementing a transfer function belonging to ...
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One-terminal electronically controlled fractional-order capacitor and inductor emulator
AEU - International Journal of Electronics and Communications, 2019Abstract A novel topology for simultaneous emulation of fractional-order capacitors and inductors is presented in this paper. In particular, only one control terminal is used in order to select the type of the element as well as its fractional order. This is achieved through an appropriate fitting of the expressions of the intermediate bias currents,
Stavroula Kapoulea +3 more
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Emulation of Fractional-Order Capacitors (CPEs) and Inductors (FOIs)
2017The design of fractional-order capacitors and inductor emulators is introduced in a systematic way procedure, where the second-order approximation of the CFE is utilized in order to approximate the variable s α of fractional calculus. OTAs are employed as building blocks, using MOS transistors biased in subthreshold region, offering the advantage of ...
Georgia Tsirimokou +2 more
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Analysis and realization of a switched fractional‐order‐capacitor integrator
International Journal of Circuit Theory and Applications, 2016SummaryUsing fractional calculus, we analyze a classical switched‐capacitor integrator when a fractional‐order capacitor is employed in the feed‐forward path. We show that using of a fractional‐order capacitor, significantly large time constants can be realized with capacitances in the feedback path much smaller in value when compared with a ...
Costas Psychalinos +3 more
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Design, fabrication and application of fractional-order capacitors
2019The fractional–order capacitors add an additional degree of freedom over conventional capacitors in circuit design and facilitate circuit configurations that would be impractical or impossible to implement with conventional capacitors. We propose a generic strategy for fractional-order capacitor fabrication that integrates layers of conductive ...
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A dualband impedance transformer realized by fractional-order inductor and capacitor
2016 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), 2016A novel dualband impedance transformer based on fractional-order inductor and capacitor is proposed in this paper. This transformer is designed to transfer the arbitrary frequency-dependent complex impedances sources to loads at two irrelevant frequencies with one fractional-order inductor and two fractional-order capacitors.
Peng Chen, Kai Yang, Tianliang Zhang
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Analysis of a rectifier circuit realized with a fractional-order capacitor
2016 28th International Conference on Microelectronics (ICM), 2016An analysis of a traditional rectifier circuit when a fractional-order capacitor with order 0 < α < 1 replaces the integer-order smoothing capacitor (α = 1) is presented. Exploring the change in discharging behaviour that results from this replacement and the impacts on ripple voltage, nominal DC voltage, current, and power expressions used to describe
Todd J. Freeborn +2 more
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Mathematical Methods in the Applied Sciences, 2020
Electrolytic computer‐grade capacitors (ECGCs) are vastly implemented in energy storage systems. However, their models are not accurate and simple as other kinds of capacitors. For example, ECGCs and supercapacitors share many characteristics but have some differences because of their physicochemical properties, so it is wrong to assume their ...
Jorge M. Cruz‐Duarte +3 more
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Electrolytic computer‐grade capacitors (ECGCs) are vastly implemented in energy storage systems. However, their models are not accurate and simple as other kinds of capacitors. For example, ECGCs and supercapacitors share many characteristics but have some differences because of their physicochemical properties, so it is wrong to assume their ...
Jorge M. Cruz‐Duarte +3 more
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Experimental verification of filters using fractional-order capacitor and inductor emulators
2016 39th International Conference on Telecommunications and Signal Processing (TSP), 2016Fractional-order filter design examples, realized through the substitution of fractional-order capacitors and inductors by appropriate active emulators, are presented in this paper. The implementation of emulators has been achieved using Current Feedback Operational Amplifiers (CFOAs) as active element.
Ilias Dimeas +3 more
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