Possibilities of ARC Oscillator Electronic Tuning

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F01%3APU21929" target="_blank" >RIV/00216305:26220/01:PU21929 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Possibilities of ARC Oscillator Electronic Tuning
Original language description
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 tuninng 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 (about0.01%).
Czech name
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Czech description
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Project
<a href="/en/project/GA102%2F01%2F0432" target="_blank" >GA102/01/0432: Symbolic, semisymbolic and numerical methods of analysis, design and optimization of electrical circuits</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2001
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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