On practical construction of electronically controllable compact current amplifier based on commercially available elements and its application

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU124081" target="_blank" >RIV/00216305:26220/17:PU124081 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S143484111731052X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S143484111731052X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aeue.2017.07.002" target="_blank" >10.1016/j.aeue.2017.07.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On practical construction of electronically controllable compact current amplifier based on commercially available elements and its application

Popis výsledku v původním jazyce

This paper presents a new concept of a current amplifier (CA) with electronically adjustable features (input resistance and current gain) implemented using commercially available devices. Several variations of basic structure are studied, described and the selected solutions verified by PSpice simulations and, moreover, also by lab experiments. Saving one discrete active device in comparison to already known similar topologies of single-input and single-output version (CA-SISO) is significant benefit whereas all other qualitative features remain very similar to previously reported ones. Simple modification of CA concept to multiple-output version (CA-SIMO), having independent adjustable current gain in each of output branches, is easily available. Experimental tests of features of discussed concepts yield adjustability range of input resistance from 100  to more than 10 k and current gain adjusting from 0.1 to 3.5 with bandwidth (-3 dB) of CA transfer response up to 16 MHz. As an example of application, proposed CA was successfully implemented in quadrature oscillator with a very wide tunability range from 29 kHz to 4.94 MHz. It was achieved by electronic control of several adjustable parameters of proposed CA.

Název v anglickém jazyce

On practical construction of electronically controllable compact current amplifier based on commercially available elements and its application

Popis výsledku anglicky

This paper presents a new concept of a current amplifier (CA) with electronically adjustable features (input resistance and current gain) implemented using commercially available devices. Several variations of basic structure are studied, described and the selected solutions verified by PSpice simulations and, moreover, also by lab experiments. Saving one discrete active device in comparison to already known similar topologies of single-input and single-output version (CA-SISO) is significant benefit whereas all other qualitative features remain very similar to previously reported ones. Simple modification of CA concept to multiple-output version (CA-SIMO), having independent adjustable current gain in each of output branches, is easily available. Experimental tests of features of discussed concepts yield adjustability range of input resistance from 100  to more than 10 k and current gain adjusting from 0.1 to 3.5 with bandwidth (-3 dB) of CA transfer response up to 16 MHz. As an example of application, proposed CA was successfully implemented in quadrature oscillator with a very wide tunability range from 29 kHz to 4.94 MHz. It was achieved by electronic control of several adjustable parameters of proposed CA.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

AEU - International Journal of Electronics and Communications

ISSN

1434-8411

e-ISSN

1618-0399

Svazek periodika

81

Číslo periodika v rámci svazku

11/2017

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

56-66

Kód UT WoS článku

000412265900007

EID výsledku v databázi Scopus

2-s2.0-85028997016