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

Result code in 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>
Alternative codes found
RIV/71226401:_____/17:N0100054
Result on the web
<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>

Result language
angličtina
Original language name
Single Active Parameter Tunable Simple Band-Pass Filter: Methods for Tunability Range Extension
Original language description
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.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 24th International Conference “Mixed Design of Integrated Circuits and Systems”
ISBN
978-83-63578-11-4
ISSN
—
e-ISSN
—
Number of pages
6
Pages from-to
318-323
Publisher name
Dept. of Microelectronics and Computer Science, Lodz University of Technology, Poland
Place of publication
Bydgoszcz, Poland
Event location
Bydgoszcz
Event date
Jun 22, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000426980600059

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