Electronically Adjustable Emulator of the Fractional-Order Capacitor
| Autor: | Norbert Herencsar, David Kubanek, Jan Dvorak, Panagiotis Bertsias, Aslihan Kartci |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
fractional-order element Computer science Topology (electrical circuits) Hardware_PERFORMANCEANDRELIABILITY Capacitance Foster I law.invention rc ladder 03 medical and health sciences 0302 clinical medicine law fractional-order capacitor Current conveyor Hardware_INTEGRATEDCIRCUITS Electronic engineering Electrical and Electronic Engineering Electronic circuit foster i Fractional-order element RC ladder Computer Science::Other Capacitor Filter design 030104 developmental biology 030220 oncology & carcinogenesis Operational transconductance amplifier lcsh:Electrical engineering. Electronics. Nuclear engineering Resistor lcsh:TK1-9971 fractional-order filter |
| Zdroj: | Elektronika Ir Elektrotechnika. 2019, vol. 25, issue 6, p. 28-34. Elektronika ir Elektrotechnika, Vol 25, Iss 6, Pp 28-34 (2019) |
| ISSN: | 2029-5731 1392-1215 |
| DOI: | 10.5755/j01.eie.25.6.24823 |
| Popis: | This paper presents a design of the controllable emulator of the FOC (Fractional-Order Capacitor) and its application. The circuit is based on 5th-order RC topology (type Foster I), where the passive elements in the topology are replaced by electronically adjustable components. The proposed emulator is based on OTA (Operational Transconductance Amplifier) and VDCC (Voltage Differencing Current Conveyor). The electronically controllable resistors are implemented by OTAs. The electronically tunable capacitors are implemented using capacitance multipliers, which employ VDCCs. The proposed structure provides the electronic control of the order and electronic shifting of the frequency band of the approximation validity. The proposed FOC emulator is also used for fractional-order filter design. The proposed circuits are verified using PSpice simulations. |
| Databáze: | OpenAIRE |
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