Detail publikace

Possibilities of ARC Oscillator Electronic Tuning

GUBEK, T.

Originální název

Possibilities of ARC Oscillator Electronic Tuning

Anglický název

Possibilities of ARC Oscillator Electronic Tuning

Jazyk

en

Originální abstrakt

This article briefly introduces the possibility of active oscillator (so-called ARC oscillator) electronic tuning by using voltage-controlled amplifiers (VCA). The base of this ARC oscillator is a biquad filter with three operational amplifiers and the VCA610 voltage-controlled amplifiers. One of these amplifiers is connected in a feedback loop to adjust oscillation conditions. The remaining amplifiers are used for tuning of the basic oscillator parameter - oscillation frequency w0. The electronic tuning itself is implemented by a method of impedance modification via the voltage-controlled amplifiers with variable gain. The mentioned scheme is suitable for frequencies below 1MHz, tuning in the range of one decade and for low harmonic distortion (about 0.01%).

Anglický abstrakt

This article briefly introduces the possibility of active oscillator (so-called ARC oscillator) electronic tuning by using voltage-controlled amplifiers (VCA). The base of this ARC oscillator is a biquad filter with three operational amplifiers and the VCA610 voltage-controlled amplifiers. One of these amplifiers is connected in a feedback loop to adjust oscillation conditions. The remaining amplifiers are used for tuning of the basic oscillator parameter - oscillation frequency w0. The electronic tuning itself is implemented by a method of impedance modification via the voltage-controlled amplifiers with variable gain. The mentioned scheme is suitable for frequencies below 1MHz, tuning in the range of one decade and for low harmonic distortion (about 0.01%).

Dokumenty

BibTex


@inproceedings{BUT5938,
  author="Tomáš {Gubek}",
  title="Possibilities of ARC Oscillator Electronic Tuning",
  annote="This article briefly introduces the possibility of active oscillator (so-called ARC oscillator) electronic tuning by using voltage-controlled amplifiers (VCA). The base of this ARC oscillator is a biquad filter with three operational amplifiers and the VCA610 voltage-controlled amplifiers. One of these amplifiers is connected in a feedback loop to adjust oscillation conditions. The remaining amplifiers are used for tuning of the basic oscillator parameter - oscillation frequency w0. The electronic tuning itself is implemented by a method of impedance modification via the voltage-controlled amplifiers with variable gain. The mentioned scheme is suitable for frequencies below 1MHz, tuning in the range of one decade and for low harmonic distortion (about 0.01%).",
  booktitle="Telecommunications and Signal Processing 2001",
  chapter="5938",
  year="2001",
  month="september",
  pages="120",
  type="conference paper"
}