Publication result detail

Simple Oscillator with Enlarged Tunability Range Based on ECCII and VGA Utilizing Commercially Available Analog Multiplier

ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; HORNG, J.; VRBA, K.; DOSTÁL, T.

Original Title

Simple Oscillator with Enlarged Tunability Range Based on ECCII and VGA Utilizing Commercially Available Analog Multiplier

English Title

Simple Oscillator with Enlarged Tunability Range Based on ECCII and VGA Utilizing Commercially Available Analog Multiplier

Type

WoS Article

Original Abstract

This work presents an example of implementation of electronically controllable features to an originally unsuitable circuit structure of oscillator. Basic structure does not allow any electronic control and has mutually dependent condition of oscillation (CO) and frequency of oscillation (FO) if only values of passive elements are considered as the only way of control. Utilization of electronically controllable current conveyor of second generation (ECCII) brings control of CO independent of FO. Additional application of voltage amplifier with variable gain in both polarities (voltage-mode multiplier) to feedback loop allows also important enlargement of the range of the independent FO control. Moreover, our proposal was tested and confirmed experimentally with commercially available active elements (“Diamond transistor”, current-mode multiplier, voltage-mode multiplier) in working range of tens of MHz.

English abstract

This work presents an example of implementation of electronically controllable features to an originally unsuitable circuit structure of oscillator. Basic structure does not allow any electronic control and has mutually dependent condition of oscillation (CO) and frequency of oscillation (FO) if only values of passive elements are considered as the only way of control. Utilization of electronically controllable current conveyor of second generation (ECCII) brings control of CO independent of FO. Additional application of voltage amplifier with variable gain in both polarities (voltage-mode multiplier) to feedback loop allows also important enlargement of the range of the independent FO control. Moreover, our proposal was tested and confirmed experimentally with commercially available active elements (“Diamond transistor”, current-mode multiplier, voltage-mode multiplier) in working range of tens of MHz.

Keywords

Current- and voltage-mode multipliers, oscillators, electronic control, mutual dependence of condition and frequency, diamond transistor, variable gain, voltage amplifier.

Key words in English

Current- and voltage-mode multipliers, oscillators, electronic control, mutual dependence of condition and frequency, diamond transistor, variable gain, voltage amplifier.

Authors

ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; HORNG, J.; VRBA, K.; DOSTÁL, T.

RIV year

2017

Released

07.04.2016

Publisher

De Gruyter

Location

Berlin

ISBN

1335-8871

Periodical

Measurement Science Review

Volume

16

Number

2

State

Slovak Republic

Pages from

35

Pages to

41

Pages count

7

URL

http://www.degruyter.com/view/j/msr.2016.16.issue-2/msr-2016-0006/msr-2016-0006.xml?format=INT

Full text in the Digital Library

http://hdl.handle.net/11012/69297

BibTex

@article{BUT123531,
  author="Roman {Šotner} and Jan {Jeřábek} and Norbert {Herencsár} and Jiun-Wei {Horng} and Kamil {Vrba} and Tomáš {Dostál}",
  title="Simple Oscillator with Enlarged Tunability Range Based on ECCII and VGA Utilizing Commercially Available Analog Multiplier",
  journal="Measurement Science Review",
  year="2016",
  volume="16",
  number="2",
  pages="35--41",
  doi="10.1515/msr-2016-0006",
  issn="1335-8871",
  url="http://www.degruyter.com/view/j/msr.2016.16.issue-2/msr-2016-0006/msr-2016-0006.xml?format=INT"
}