Now showing items 1-10 of 10

  • Adjustable Filter With Fractional-Order Element 

    Kubát, Pavel (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2018)
    This paper deals with fractal-order frequency filter, its design methods and practical use. The proposed filter consists of operational transconductance amplifiers (OTAs), adjustable current amplifier (ACA), dual-output ...
  • Adjustable Fractional-Order High-Pass Filter with Transconductance Amplifiers 

    Dvořák, Jan; Langhammer, Lukas (Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2016)
    This paper deals with proposal of a fractional-order high-pass filter with electronically tunable pole frequency and its order. The filter is designed using operational transconductance amplifiers (OTAs), current follower ...
  • Analogové elektronické emulátory obvodů neceločíselného řádu 

    Kubát, Pavel
    Diplomová práce se zabývá problematikou obvodů neceločíselných řádů. V první části je pojednáno o této problematice, dále byly uvedeny jednotlivé metody návrhů a typy obvodů, které lze v praxi využít. Následující kapitola ...
  • Design of Fractional-Order Integrator Controlled by Single Voltage Gain 

    Šotner, Roman; Petržela, Jiří; Jeřábek, Jan; Herencsár, Norbert; Andriukaitis, Darius (IEEE, 2019-07-01)
    This work presents analyses of interaction of fractional- and integer-order transfer functions when their responses are added together by simple linear operation of sum. The mathematical background is very complex but ...
  • Fractional-Order Asymptotical Phase Shifter With Flat Magnitude Response 

    Šotner, Roman; Langhammer, Lukáš; Jeřábek, Jan; Dostál, Tomáš (IEEE, 2019-06-26)
    This work deals with design of fractional-order asymptotical phase shifter having constant magnitude response within almost three decades (100 Hz – 100 kHz) and frequency dependent phase difference going from 0 to 45 ...
  • Fractional-order chaotic memory with wideband constant phase elements 

    Petržela, Jiří (MDPI, 2020-04-09)
    This paper provides readers with three partial results that are mutually connected. Firstly, the gallery of the so-called constant phase elements (CPE) dedicated for the wideband applications is presented. CPEs are calculated ...
  • Fractional-Order Low-Pass Filter with Electronic Tunability of Its Order and Pole Frequency 

    Langhammer, Lukáš; Dvořák, Jan; Jeřábek, Jan; Koton, Jaroslav; Šotner, Roman (FEI STU Bratislava, 2018-02-27)
    This paper presents novel solution of a fractional-order low-pass filter (FLPF). The proposed filter operates in the current mode and it is designed using third-order inverse follow-the-leader feedback topology and operational ...
  • Practical Design of Fractional-Order Oscillator Employing Simple Resonator and Negative Resistor 

    Šotner, Roman; Jeřábek, Jan; Domanský, Ondřej; Herencsár, Norbert; Kartci, Aslihan; Dvořák, Jan (IEEE, 2018-11-08)
    This contribution presents straightforward design of a fractional-order oscillator employing novel simple impedance inverter (implementing differential voltage current conveyor transconductance amplifier as active element) ...
  • Practical Design of Fractional-Order Resonator for Application in the Multiphase Oscillator 

    Šotner, Roman; Jeřábek, Jan; Langhammer, Lukáš; Kartci, Aslihan; Herencsár, Norbert; Metin, Bilgin (IEEE, 2020-11-25)
    This contribution introduces a new simple electronically adjustable resonator for implementation in design of the fractional-order multiphase oscillator created with parallel connection of this resonator and negative ...
  • Tunable Fractional-Order Capacitance Multiplier Using Current Gain Adjustment 

    Šotner, Roman; Jeřábek, Jan; Langhammer, Lukáš (IEEE, 2020-11-25)
    This paper brings new solution of linearly adjustable fractional-order capacitance multiplier. The adjustable current gain, linear in wide range of input current and with linear dependence on driving voltage, serves for ...