Proračun osjetljivosti PP filtra 4. reda s povratnom vezom
| Autor: | Šestan, Dani |
|---|---|
| Přispěvatelé: | Stojković, Nino, Volarić, Ivan, Matika, Dario |
| Jazyk: | chorvatština |
| Rok vydání: | 2023 |
| Předmět: |
Butterworth approximation
Pojasno propusni filtar Butterworth-ova aproksimacija kaskadna struktura bikvartna struktura povratna veza vremenske i frekvencijske karakteristike osjetljivost cascade structure feedback time and frequeny characteristics Band pass filter biquad structure filter sensitivity |
| Popis: | Ovim diplomskim radom realiziran je pojasno propusni filtar četvrtog reda s dva operacijska pojačala u kaskadnoj i bikvartnoj strukturi. U Matlab-u su izračunate prijenosne funkcije i prikazao se raspored nula i polova, vremenske i frekvencijske karakteristike te Schoeffler-ova osjetljivost za obje filtarske strukture. LTSpice simulacijom dokazale su se karakteristike dobivene Matlab-om, čime se pokazala ispravnost filtra. Zatim se je krenulo s izradom dizajna tiskane pločice u programu EasyEDA. Na samom kraju, izradio se je fizički model filtra s povratnom vezom. Na njemu su odrađena mjerenja amplitudno i fazno frekvencijske karakteristike i karakteristike grupnog vremena kašnjenja pomoću mrežnog analizatora Agilent 4395A. Usporedbom dobivenih karakteristika s Matlab i LTSpice karakteristikama dokazao se ispravan rad filtra, te je zadatak uspješno napravljen. In this paper a fourth-order filter with two amplifiers in a cascade and biquad structure was realized. Transfer functions were calculated in Matlab and the zeros and poles distribution, time and frequency characteristics and Schoeffler's sensitivity for both structures were displayed. LTSpice simulation proved the characteristics obtained with Matlab, which proved the correctness of the filter. Then the creation of printed circuit board design created in EasyEDA program started. At the very end, a physical model of the feedback filter was created. Amplitude and phase frequency characteristic and group time delay characteristic were measured on it using an Agilent 4395A network analyzer. By comparing the obtained characteristics with Matlab and LTSpice characteristics, the filter correctness was proven, and the task was successfully completed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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