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POLÁK, J. JEŘÁBEK, J. LANGHAMMER, L. DVOŘÁK, J.
Original Title
Tunable frequency filter with transconductance amplifiers and adjustable current amplifiers
Type
journal article - other
Language
English
Original Abstract
Newly designed frequency filter of the second order with the possibility of mutually independent control of the pole frequency and quality factor is presented in this paper. Balanced-output transconductance amplifier (BOTA) and digitally adjustable current amplifier (DACA) are used as active elements in this proposal. The pole frequency and quality factor can be tuned by the adjustable current gain of three DACAs that are available in form of integrated circuit. The individual output responses of proposed frequency filter are verified using PSpice simulations and by experimental measurement in laboratory.
Keywords
Transconductance amplifier, current amplifier, current gain, transconductance, pole frequency, quality factor
Authors
POLÁK, J.; JEŘÁBEK, J.; LANGHAMMER, L.; DVOŘÁK, J.
Released
30. 6. 2016
ISBN
1213-1539
Periodical
Elektrorevue - Internetový časopis (http://www.elektrorevue.cz)
Year of study
18
Number
03
State
Czech Republic
Pages from
68
Pages to
75
Pages count
8
BibTex
@article{BUT126750, author="Josef {Polák} and Jan {Jeřábek} and Lukáš {Langhammer} and Jan {Dvořák}", title="Tunable frequency filter with transconductance amplifiers and adjustable current amplifiers", journal="Elektrorevue - Internetový časopis (http://www.elektrorevue.cz)", year="2016", volume="18", number="03", pages="68--75", issn="1213-1539" }