Publication detail

Design of Novel Precise Quadrature Oscillators Employing ECCIIs with Electronic Control

ŠOTNER, R. LAHIRI, A. KARTCI, A. HERENCSÁR, N. JEŘÁBEK, J. VRBA, K.

Original Title

Design of Novel Precise Quadrature Oscillators Employing ECCIIs with Electronic Control

English Title

Design of Novel Precise Quadrature Oscillators Employing ECCIIs with Electronic Control

Type

journal article in Web of Science

Language

en

Original Abstract

In this paper, an interesting design of precise quadrature oscillator employing electronically controllable current conveyors of the second generation (ECCII) is presented. The main purpose of this paper is to show advantages and features of direct electronic control of application by an adjustable current gain where help of signal flow graph approach was used to clearer and visual understanding of the design. The discussed circuit and its presented modification have several favorable features such as grounded capacitors, independent electronic adjusting of oscillation frequency and condition of oscillation by the current gain and easy automatic gain control circuit (AGC) implementation (non-ideal effects of tuning process on output amplitudes are suppressed). Oscillator was designed for frequency band of units of MHz and tested with two types of inertial AGCs. Theoretical presumptions were confirmed by laboratory experiments.

English abstract

In this paper, an interesting design of precise quadrature oscillator employing electronically controllable current conveyors of the second generation (ECCII) is presented. The main purpose of this paper is to show advantages and features of direct electronic control of application by an adjustable current gain where help of signal flow graph approach was used to clearer and visual understanding of the design. The discussed circuit and its presented modification have several favorable features such as grounded capacitors, independent electronic adjusting of oscillation frequency and condition of oscillation by the current gain and easy automatic gain control circuit (AGC) implementation (non-ideal effects of tuning process on output amplitudes are suppressed). Oscillator was designed for frequency band of units of MHz and tested with two types of inertial AGCs. Theoretical presumptions were confirmed by laboratory experiments.

Keywords

Direct electronic control, current gain adjusting, electronically controllable current conveyors, quadrature oscillators, signal flow graph approach.

RIV year

2013

Released

31.05.2013

Location

Stefan cel Mare University of Suceava 13, Universitatii Street Suceava - 720229 ROMANIA

Pages from

65

Pages to

72

Pages count

8

URL

Documents

BibTex


@article{BUT99930,
  author="Roman {Šotner} and Abhirup {Lahiri} and Aslihan {Kartci} and Norbert {Herencsár} and Jan {Jeřábek} and Kamil {Vrba}",
  title="Design of Novel Precise Quadrature Oscillators Employing ECCIIs with Electronic Control",
  annote="In this paper, an interesting design of precise quadrature oscillator employing electronically controllable current conveyors of the second generation (ECCII) is presented. The main purpose of this paper is to show advantages and features of direct electronic control of application by an adjustable current gain where help of signal flow graph approach was used to clearer and visual understanding of the design. The discussed circuit and its presented modification have several favorable features such as grounded capacitors, independent electronic adjusting of oscillation frequency and condition of oscillation by the current gain and easy automatic gain control circuit (AGC) implementation (non-ideal effects of tuning process on output amplitudes are suppressed). Oscillator was designed for frequency band of units of MHz and tested with two types of inertial AGCs. Theoretical presumptions were confirmed by laboratory experiments.",
  chapter="99930",
  doi="10.4316/AECE.2013.02011",
  number="2",
  volume="13",
  year="2013",
  month="may",
  pages="65--72",
  type="journal article in Web of Science"
}