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master's thesis
Pojasno propusni filtar za Rogowski svitak
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2018. urn:nbn:hr:168:862136
Mlakar, Karlo
University of Zagreb
Faculty of Electrical Engineering and Computing

Institutional repository: FER Repository

Cite this document

Mlakar, K. (2018). Pojasno propusni filtar za Rogowski svitak (Master's thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:862136

Mlakar, Karlo. "Pojasno propusni filtar za Rogowski svitak." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2018. https://urn.nsk.hr/urn:nbn:hr:168:862136

Mlakar, Karlo. "Pojasno propusni filtar za Rogowski svitak." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2018. https://urn.nsk.hr/urn:nbn:hr:168:862136

Mlakar, K. (2018). 'Pojasno propusni filtar za Rogowski svitak', Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 02 June 2024, https://urn.nsk.hr/urn:nbn:hr:168:862136

Mlakar K. Pojasno propusni filtar za Rogowski svitak [Master's thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2018 [cited 2024 June 02] Available at: https://urn.nsk.hr/urn:nbn:hr:168:862136

K. Mlakar, "Pojasno propusni filtar za Rogowski svitak", Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:168:862136

Metadata
TitlePojasno propusni filtar za Rogowski svitak
Title (english)Band-Pass Filter for Rogowski Coil
AuthorKarlo Mlakar
MentorDražen Jurišić (mentor)
Committee memberDražen Jurišić (predsjednik povjerenstva)
Committee memberZvonko Kostanjčar (član povjerenstva)
Committee memberTomislav Petković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
Zagreb
Defense date and country2018-07-11, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Computing
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Abstract
U ovom radu je opisan postupak projektiranja eliptičkog pojasno-propusnog filtra 24. reda s maksimalnom valovitošću u području propuštanja od 0.001 dB i minimalnim gušenjem u području gušenja od 65 dB. Radi tolerancija komponenata donja i gornja granična frekvencija su pomaknute sa 50 Hz i 1000 Hz na 45Hz i 1010 Hz. Proračun je krenuo od nisko-propusnog prototipa nad kojim je izvršena frekvencijska transformacija kako bi se dobio simetrični geometrijski pojasno-propusni filtar. Kako bi se ostvario maksimalni dinamički opseg, izvršeno je uparivanje polova i nula, pravilan redoslijed Q faktora i maksimalno jedinično pojačanje sekcija. Filtar je realiziran pomoću Bainter i Tow-Thomas bikvadratnih filtarskih sekcija. Odabir filtarske sekcije za realizaciju pojedine notch sekcije je izvršen na temelju osjetljivosti filtarske sekcije na tolerancije komponenata te cijene. Osjetljivost je ispitana pomoću Monte Carlo analize u programu LTspice. Za realizaciju je razmotrena i Boctor bikvadratna filtarska sekcija, ali se nije pokazala pogodnom za ovu primjenu U programu Altium Designer je projektirana tiskana pločica kako bi se u budućnosti mogla izvršiti konkretna mjerenja. Odabrane su SMD komponente zbog manjeg utjecaja parazitnih elemenata.
Abstract (english)
This final thesis describes the design process of 24th order band-pass elliptic filter with maximum passband ripple of 0.001 dB and minimum stopband ripple of 65 dB. The corner frequencies where moved from 50 Hz and 1000 Hz to 45 Hz and 1010 Hz because of component tolerances. Design started from a lowpass prototype. Then, frequency transformation was performed in order to obtain symmetrical geometric bandpass filter. To obtain maximum dynamic range, pole-zero pairing was performed, as well as, proper Q factor order, and maximum unity gains at the sections outputs. Filter was constructed with Bainter and Tow-Thomas bi-quadratic filter sections. Selection of filter section to implement particular notch section was based on its sensitivity to component tolerances and price. Sensitivity was analyzed with Monte Carlo analysis using LTspice. Boctor bi-quadratic section was also considered, but it did not show suitable for this application. Printed circuit board was designed in Altium Designer, so measurements can be performed in the future. To reduce component parasitics, SMD components were chosen for the design.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:862136
Study programmeTitle: Electrical Engineering and Information Technology
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
Type of resourceText
File originBorn digital
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Created on2019-03-13 23:14:31