Publication detail

Digitally-Controlled Quadrature Oscillators Employing Modified CDBAs

BIOLEK, D. BIOLKOVÁ, V. KOLKA, Z. BAJER, J.

Original Title

Digitally-Controlled Quadrature Oscillators Employing Modified CDBAs

English Title

Digitally-Controlled Quadrature Oscillators Employing Modified CDBAs

Type

conference paper

Language

en

Original Abstract

Four topologies of the quadrature oscillators are proposed in the paper, each of them employing two Z Copy-Controlled Gain-CDBAs (ZC-CG-CDBAs). The circuits start from the well-known concept of two integrators in a feedback loop. In all cases, the frequency of oscillation and the oscillation condition can be orthogonally controlled, with the possibility of using both the analog and digital approach. The available outputs are in the form of voltage and also current waveforms. Each of the presented oscillators represents a certain measure of the tradeoff between the universality and the complexity of its structure. The workability of the oscillators is verified experimentally.

English abstract

Four topologies of the quadrature oscillators are proposed in the paper, each of them employing two Z Copy-Controlled Gain-CDBAs (ZC-CG-CDBAs). The circuits start from the well-known concept of two integrators in a feedback loop. In all cases, the frequency of oscillation and the oscillation condition can be orthogonally controlled, with the possibility of using both the analog and digital approach. The available outputs are in the form of voltage and also current waveforms. Each of the presented oscillators represents a certain measure of the tradeoff between the universality and the complexity of its structure. The workability of the oscillators is verified experimentally.

Keywords

Quadrature oscillator, ZC-CG-CDBA

RIV year

2013

Released

07.12.2013

Publisher

IIE

Location

Phuket (Th)

ISBN

978-93-82242-52-9

Book

Proceedings of International Conference on Emerging Trends in Engineering and Technology (ICETET'2013)

Pages from

52

Pages to

58

Pages count

7

BibTex


@inproceedings{BUT104148,
  author="Dalibor {Biolek} and Viera {Biolková} and Zdeněk {Kolka} and Josef {Bajer}",
  title="Digitally-Controlled Quadrature Oscillators Employing Modified CDBAs",
  annote="Four topologies of the quadrature oscillators are proposed in the paper, each of them employing two Z Copy-Controlled Gain-CDBAs (ZC-CG-CDBAs). The circuits start from the well-known concept of two integrators in a feedback loop. In all cases, the frequency of oscillation and the oscillation condition can be orthogonally controlled, with the possibility of using both the analog and digital approach. The available outputs are in the form of voltage and also current waveforms. Each of the presented oscillators represents a certain measure of the tradeoff between the universality and the complexity of its structure. The workability of the oscillators is verified experimentally.",
  address="IIE",
  booktitle="Proceedings of International Conference on Emerging Trends in Engineering and Technology (ICETET'2013)",
  chapter="104148",
  howpublished="electronic, physical medium",
  institution="IIE",
  year="2013",
  month="december",
  pages="52--58",
  publisher="IIE",
  type="conference paper"
}