Single Active Parameter Tunable Simple Band-Pass Filter: Methods for Tunability Range Extension

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU124090" target="_blank" >RIV/00216305:26220/17:PU124090 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/71226401:_____/17:N0100054

Výsledek na webu

<a href="http://dx.doi.org/10.23919/MIXDES.2017.8005223" target="_blank" >http://dx.doi.org/10.23919/MIXDES.2017.8005223</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.23919/MIXDES.2017.8005223" target="_blank" >10.23919/MIXDES.2017.8005223</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Single Active Parameter Tunable Simple Band-Pass Filter: Methods for Tunability Range Extension

Popis výsledku v původním jazyce

This paper compares three possible methods of adjusting center frequency in a second order band-pass filter using a single active parameter. Limited range of driving voltages serving for tuning of electronically controllable applications is the problem of modern low-voltage systems due to reduced power supply voltage. Therefore, methods how to obtain similar bandwidths of adjustability in comparison to standard linear control applied in systems with DC driving voltage/current range below one decade should be studied. Lossless integrator (its transconductance subpart) implemented in the structure of the filter was solved as three different subcircuits allowing three different methods of its adjusting, i.e. linear, quadratic and exponential dependence of transconductance gm on DC driving voltage VSET. This results to square root, linear and exponential dependence of center frequency of the filter on VSET. The last method allows to reach at least a four-times wider range of tunability of center frequency in comparison to standard implementation of a linearly controllable integrator in the same range of VSET. PSpice simulations confirm intended features of the proposed methods.

Název v anglickém jazyce

Single Active Parameter Tunable Simple Band-Pass Filter: Methods for Tunability Range Extension

Popis výsledku anglicky

This paper compares three possible methods of adjusting center frequency in a second order band-pass filter using a single active parameter. Limited range of driving voltages serving for tuning of electronically controllable applications is the problem of modern low-voltage systems due to reduced power supply voltage. Therefore, methods how to obtain similar bandwidths of adjustability in comparison to standard linear control applied in systems with DC driving voltage/current range below one decade should be studied. Lossless integrator (its transconductance subpart) implemented in the structure of the filter was solved as three different subcircuits allowing three different methods of its adjusting, i.e. linear, quadratic and exponential dependence of transconductance gm on DC driving voltage VSET. This results to square root, linear and exponential dependence of center frequency of the filter on VSET. The last method allows to reach at least a four-times wider range of tunability of center frequency in comparison to standard implementation of a linearly controllable integrator in the same range of VSET. PSpice simulations confirm intended features of the proposed methods.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 24th International Conference “Mixed Design of Integrated Circuits and Systems”

ISBN

978-83-63578-11-4

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

318-323

Název nakladatele

Dept. of Microelectronics and Computer Science, Lodz University of Technology, Poland

Místo vydání

Bydgoszcz, Poland

Místo konání akce

Bydgoszcz

Datum konání akce

22. 6. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000426980600059