Publication detail

Precise Electronically Adjustable Oscillator Suitable for Quadrature Signal Generation Employing Active Elements with Current and Voltage Gain Control

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

Original Title

Precise Electronically Adjustable Oscillator Suitable for Quadrature Signal Generation Employing Active Elements with Current and Voltage Gain Control

Type

journal article in Web of Science

Language

English

Original Abstract

A new oscillator suitable for quadrature and multiphase signal generation is introduced in this contribution. A novel active element, called the controlled gain buffered current and voltage amplifier (CG-BCVA) with electronic possibilities for current and voltage gain adjustment is implemented together with a controlled gain current follower differential output buffered amplifier (CG-CFDOBA) for linear adjustment of the oscillation frequency and precise control of the oscillation condition in order to ensure a stable level of generated voltages and sufficient total harmonic distortion. The parameters of the oscillator are directly controllable electronically. Simultaneous changes of two current gains allow linear adjusting of the oscillation frequency, and a controllable voltage gain is intended to control the oscillation condition. A detailed comparison of the proposed circuits with recently developed and discovered solutions employing the same type of electronic control is provided and shows the useful features of the proposed oscillator and utilized methods of electronic control. Behavioral models based on commercially available ICs have been used for experimental purposes. CMOS implementation of active elements was introduced and utilized for additional simulations and studies. Non-ideal analysis, Monte Carlo statistical evaluations of simulated models, and further analyses were performed for the exact determination of the expected results. Laboratory experiments confirmed the workability and estimated behavior of the proposed circuit as well.

Keywords

Electronic control, adjustable current and voltage gains, current and voltage amplifier, current follower differential output buffered amplifier, quadrature and multiphase oscillators, CG-BCVA, CG-CFDOBA

Authors

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

RIV year

2014

Released

30. 1. 2014

Publisher

Springer Science+Business Media New York 2013

ISBN

0278-081X

Periodical

CIRCUITS SYSTEMS AND SIGNAL PROCESSING

Year of study

33

Number

1

State

United States of America

Pages from

1

Pages to

35

Pages count

35

URL

http://link.springer.com/content/pdf/10.1007%2Fs00034-013-9623-2.pdf

BibTex

@article{BUT100552,
  author="Roman {Šotner} and Zdeněk {Hruboš} and Norbert {Herencsár} and Jan {Jeřábek} and Tomáš {Dostál} and Kamil {Vrba}",
  title="Precise Electronically Adjustable Oscillator Suitable for Quadrature Signal Generation Employing Active Elements with Current and Voltage Gain Control",
  journal="CIRCUITS SYSTEMS AND SIGNAL PROCESSING",
  year="2014",
  volume="33",
  number="1",
  pages="1--35",
  doi="10.1007/s00034-013-9623-2",
  issn="0278-081X",
  url="http://link.springer.com/content/pdf/10.1007%2Fs00034-013-9623-2.pdf"
}