Publication detail

Electronically Tunable Fully-Differential Fractional-Order Low-Pass Filter

LANGHAMMER, L. DVOŘÁK, J. ŠOTNER, R. JEŘÁBEK, J.

Original Title

Electronically Tunable Fully-Differential Fractional-Order Low-Pass Filter

Type

journal article in Web of Science

Language

English

Original Abstract

The paper presents proposal of a fully- differential (1 + α)-order low-pass filter. The order of the filter and its cut-off frequency can be controlled electronically. The filter is proposed using operational transconductance amplifiers (OTAs), adjustable current amplifiers (ACAs) and fully-differential current follower (FD-CF). The circuit structure is based on well-known Inverse Follow-the-Leader Feedback (IFLF) topology. Design correctness of the proposed filter is supported by PSpice simulations with transistor-level simulation models. The ability of the electronic control of the order has been tested for five individual values of parameter α. Furthermore, the ability of the electronic control of the cut-off frequency of the filter has been also tested for five different values. Additionally, the simulation results of the proposed fully-differential (F-D) filter are compared with the results of the single-ended (S-E) equivalent of the presented filter.

Keywords

Active filter; fractional-order; frequency control; low-pass filter

Authors

LANGHAMMER, L.; DVOŘÁK, J.; ŠOTNER, R.; JEŘÁBEK, J.

Released

16. 6. 2017

Publisher

Kaunas University of Technology

Location

Kaunas, Litva

ISBN

1392-1215

Periodical

Elektronika Ir Elektrotechnika

Year of study

23

Number

3

State

Republic of Lithuania

Pages from

47

Pages to

54

Pages count

8

URL

https://eejournal.ktu.lt/index.php/elt/article/view/18332

Full text in the Digital Library

http://hdl.handle.net/11012/201698

BibTex

@article{BUT137100,
  author="Lukáš {Langhammer} and Jan {Dvořák} and Roman {Šotner} and Jan {Jeřábek}",
  title="Electronically Tunable Fully-Differential Fractional-Order Low-Pass Filter",
  journal="Elektronika Ir Elektrotechnika",
  year="2017",
  volume="23",
  number="3",
  pages="47--54",
  doi="10.5755/j01.eie.23.3.18332",
  issn="1392-1215",
  url="https://eejournal.ktu.lt/index.php/elt/article/view/18332"
}