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Statements

Subject Item
n2:RIV%2F68407700%3A21230%2F07%3A03131782%21RIV08-MSM-21230___
rdf:type
n8:Vysledek skos:Concept
dcterms:description
The paper describes the optimization of a switched-capacitor filter. The aim of the optimization is to obtain a required magnitude frequency response of the filter by means of the differential evolution. An optimal dynamic range is to be achieved too. The optimization takes into account both one of the features of real switches - on-state resistance, and the features of real operational amplifiers - finite voltage gain and finite unity-gain bandwidth. Other main features of real operational amplifiers (input and output resistance) have small effect. The filter with ideal switches and operational amplifiers is designed by the usual way at first. The analysis of this filter with real switches and operational amplifiers shows a significant difference between its magnitude frequency response and the one with ideal components. Thus, the optimization is applied to finding component values for the response to be as similar to the one with ideal components as possible. The paper describes the optimization of a switched-capacitor filter. The aim of the optimization is to obtain a required magnitude frequency response of the filter by means of the differential evolution. An optimal dynamic range is to be achieved too. The optimization takes into account both one of the features of real switches - on-state resistance, and the features of real operational amplifiers - finite voltage gain and finite unity-gain bandwidth. Other main features of real operational amplifiers (input and output resistance) have small effect. The filter with ideal switches and operational amplifiers is designed by the usual way at first. The analysis of this filter with real switches and operational amplifiers shows a significant difference between its magnitude frequency response and the one with ideal components. Thus, the optimization is applied to finding component values for the response to be as similar to the one with ideal components as possible. Tento článek popisuje optimalizaci filtru se spínanými kapacitory. Cílem optimalizace je prostřednictvím diferenciální evoluce získat požadovanou modulovou kmitočtovou charakteristiku filtru. Má být dosažen rovněž optimální dynamický rozsah. Optimalizace bere v úvahu jak jednu z vlastností skutečných spínačů - odpor v sepnutém stavu, tak vlastnosti skutečných operačních zesilovačů - konečné napěťové zesílení a konečnou šířku pásma. Ostatní hlavní vlastnosti skutečných operačních zesilovačů - vstupní a výstupní odpor - mají malý vliv. Nejprve je obvyklým způsobem navržen filtr s ideálními spínači a operačními zesilovači. Analýzou tohoto filtru se skutečnými spínači a operačními zesilovači je ukázán výrazný rozdíl mezi modulovou kmitočtovou charakteristikou jeho a s ideálními součástkami. Je proto použita optimalizace, aby se nalezly hodnoty součástek takové, s nimiž je modulová kmitočtová charakteristika co nejpodobnější té s ideálními součástkami.
dcterms:title
Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers Optimalizace filtru se spínanými kapacitory s ohledem na odpor spínačů v sepnutém stavu a vlastnosti skutečných operačních zesilovačů
skos:prefLabel
Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers Optimalizace filtru se spínanými kapacitory s ohledem na odpor spínačů v sepnutém stavu a vlastnosti skutečných operačních zesilovačů
skos:notation
RIV/68407700:21230/07:03131782!RIV08-MSM-21230___
n3:strany
34;39
n3:aktivita
n18:Z
n3:aktivity
Z(MSM6840770014)
n3:cisloPeriodika
2
n3:dodaniDat
n7:2008
n3:domaciTvurceVysledku
n5:5896010 n5:2401819
n3:druhVysledku
n15:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n6:predkladatel
n3:idSjednocenehoVysledku
453748
n3:idVysledku
RIV/68407700:21230/07:03131782
n3:jazykVysledku
n10:eng
n3:klicovaSlova
switched-capacitor circuit
n3:klicoveSlovo
n17:switched-capacitor%20circuit
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[1D5A0ABB02A7]
n3:nazevZdroje
Radioengineering
n3:obor
n14:JA
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n7:2007
n3:svazekPeriodika
16
n3:tvurceVysledku
Dolívka, Lukáš Hospodka, Jiří
n3:zamer
n13:MSM6840770014
s:issn
1210-2512
s:numberOfPages
6
n11:organizacniJednotka
21230