Paper Info
Title
Synthesis and Analysis of Electronically Adjustable Fractional-Order Low-Pass Filter.
Abstract
A proposal of a fractional (1 + alpha)-order low-pass filter is presented in this paper. The proposed filter operates in the current-mode and it is designed using Multi-Output Current Followers (MO-CFs), Dual-Output Current Follower (DO-CF), Dual-Output Adjustable Current Amplifier (DO-ACA) and Adjustable Current Amplifiers (ACAs) as active elements within the presented topology of the filter. The filter possesses ability to electronically control its order and also the pole frequency by changing the current gain of current amplifiers (ACAs) already present in the structure. Three different values of the order and pole frequency of the proposed low-pass filter were tested as an example. Design of the proposed filter is supported by simulation and experimental results. Simulations of the circuit are carried out in PSPICE simulator with behavioral models of used active elements. The experimental laboratory measurements are performed with the help of available devices forming equivalent circuits. Simulations and experimental results of the electronical control of the order and pole frequency are compared in this contribution.
Year
DOI
Venue
2018
10.1142/S0218126618500329
JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS
Keywords
Field
DocType
ACA,current-mode,DO-ACA,DO-CF,electronically tunable,fractional-order,low-pass filter,MO-CF
Active filter,Computer science,Control theory,Electronic engineering,High-pass filter,Low-pass filter,All-pass filter,m-derived filter,Voltage-controlled filter,Butterworth filter,Filter design
Journal
Volume
Issue
ISSN
27
2
0218-1266
Citations 
PageRank 
References 
4
0.51
12
Authors
6
Name
Order
Citations
PageRank
Jan Dvorak1165.44
Lukas Langhammer251.20
Jan Jerabek36724.54
Jaroslav Koton49324.27
Roman Sotner56525.81
Josef Polak6141.96