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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

AEU - International Journal of Electronics and Communications

ISSN

1434-8411

e-ISSN

1618-0399

Volume of the periodical

81

Issue of the periodical within the volume

11/2017

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

56-66

UT code for WoS article

000412265900007

EID of the result in the Scopus database

2-s2.0-85028997016