Publication detail

Design of Z-copy controlled-gain voltage differencing current conveyor based adjustable functional generator

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

Original Title

Design of Z-copy controlled-gain voltage differencing current conveyor based adjustable functional generator

Type

journal article in Web of Science

Language

English

Original Abstract

This paper introduces interesting active element and its application in the field of square and triangular wave generators. Active element, so-called Z-Copy Controlled Gain Voltage Differencing Current Conveyor (ZC-CG-VDCC), has availability of three mutually independently and electronically adjustable parameters (transconductance, intrinsic resistance of the current input terminal and current gain between two terminals) that are very popular for control of applications today. In addition, a proposed device utilizes very useful z-copy (additional auxiliary terminal) features and two terminals providing voltage difference. All mentioned features are beneficial in mixed-mode circuit synthesis and design of adjustable applications (active filters, oscillators, generators, modulators, etc.). Electronically adjustable properties of the device are involved in the design of an adjustable generator. The generator provides voltage- and current-mode square wave outputs that can be also used for differential square wave output when very simply modified. Application of the generator in simple pulse width modulator (PWM) is also introduced. A detailed analysis and Spice simulation results are given and main features of the circuits are compared to electronically controllable solutions of recent development in this field.

Keywords

Square and triangular wave generator, PWM, differential mode, electronic control, voltage- and current-mode, transconductance, current gain, voltage differencing current conveyor.

Authors

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

RIV year

2015

Released

1. 2. 2015

Publisher

Elsevier

Location

THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND

ISBN

0026-2692

Periodical

Microelectronics Journal

Year of study

46

Number

2

State

United Kingdom of Great Britain and Northern Ireland

Pages from

143

Pages to

152

Pages count

10

BibTex

@article{BUT111344,
  author="Roman {Šotner} and Jan {Jeřábek} and Norbert {Herencsár} and Tomáš {Dostál} and Kamil {Vrba}",
  title="Design of Z-copy controlled-gain voltage differencing current conveyor based adjustable functional generator",
  journal="Microelectronics Journal",
  year="2015",
  volume="46",
  number="2",
  pages="143--152",
  doi="10.1016/j.mejo.2014.11.008",
  issn="0026-2692"
}