Publication detail

Current–Mode Fractional–Order Electronically Controllable Integrator Design

LANGHAMMER, L. ŠOTNER, R. DVOŘÁK, J. SLÁDOK, O. JEŘÁBEK, J. BERTSIAS, P.

Original Title

Current–Mode Fractional–Order Electronically Controllable Integrator Design

English Title

Current–Mode Fractional–Order Electronically Controllable Integrator Design

Type

conference paper

Language

en

Original Abstract

This contribution presents a design of a current–mode fractional–order electronically controllable integrator which can be used as a building block for a design of fractional–order (FO) circuits. The design is based on a 2nd–order Follow–the–Leader–Feedback topology which is suitably approximated to operate as an integrator of a fractional order. The topology is based on Operational Transconductance Amplifiers (OTAs), Adjustable Current Amplifiers (ACAs) and Current Follower (CF). The proposed structure offers the ability of the electronic control of its fractional order and also the electronic control of the frequency band. Simulations in Cadence IC6 (spectre) and more importantly experimental measurements were carried out to support the proposal. If wider bandwidth where the approximation is valid is required, a higher order structure must be used as also shown in this paper by utilization of a 4th–order FLF topology.

English abstract

This contribution presents a design of a current–mode fractional–order electronically controllable integrator which can be used as a building block for a design of fractional–order (FO) circuits. The design is based on a 2nd–order Follow–the–Leader–Feedback topology which is suitably approximated to operate as an integrator of a fractional order. The topology is based on Operational Transconductance Amplifiers (OTAs), Adjustable Current Amplifiers (ACAs) and Current Follower (CF). The proposed structure offers the ability of the electronic control of its fractional order and also the electronic control of the frequency band. Simulations in Cadence IC6 (spectre) and more importantly experimental measurements were carried out to support the proposal. If wider bandwidth where the approximation is valid is required, a higher order structure must be used as also shown in this paper by utilization of a 4th–order FLF topology.

Keywords

current mode; electronic control; fractional order; fractional–order emulator; integrator

Released

25.11.2020

Publisher

IEEE

Location

Glasgow, Scotland

ISBN

978-1-7281-6044-3

Book

Proceedings of the 2020 IEEE International Conference on Electronics Circuits and Systems (ICECS)

Pages from

1

Pages to

4

Pages count

4

URL

Full text in the Digital Library

Documents

BibTex


@inproceedings{BUT165332,
  author="Lukáš {Langhammer} and Roman {Šotner} and Jan {Dvořák} and Ondřej {Sládok} and Jan {Jeřábek} and Panagiotis {Bertsias}",
  title="Current–Mode Fractional–Order Electronically Controllable Integrator Design",
  annote="This contribution presents a design of a current–mode fractional–order electronically controllable integrator which can be used as a building block for a design of fractional–order (FO) circuits. The design is based on a 2nd–order Follow–the–Leader–Feedback topology which is suitably approximated to operate as an integrator of a fractional order. The topology is based on Operational Transconductance Amplifiers (OTAs), Adjustable Current Amplifiers (ACAs) and Current Follower (CF). The proposed structure offers the ability of the electronic control of its fractional order and also the electronic control of the frequency band. Simulations in Cadence IC6 (spectre) and more importantly experimental measurements were carried out to support the proposal. If wider bandwidth where the approximation is valid is required, a higher order structure must be used as also shown in this paper by utilization of a 4th–order FLF topology.",
  address="IEEE",
  booktitle="Proceedings of the 2020 IEEE International Conference on Electronics Circuits and Systems (ICECS)",
  chapter="165332",
  doi="10.1109/ICECS49266.2020.9294923",
  howpublished="online",
  institution="IEEE",
  year="2020",
  month="november",
  pages="1--4",
  publisher="IEEE",
  type="conference paper"
}