Implementation of resistorless universal biquad filter with electronic controllability

• Autorzy: Na Songkla Supayotin

Identyfikatory

DOI

10.15199/48.2019.05.36

Warianty tytułu

PL

Projekt uniwersalnego filtru bez zewnętrznych rezysto®oa) strojonego elektronicznie

• Języki publikacji: EN

Abstrakty

EN

A new biquad filter which simultaneously provides four filter responses, high-pass (HP), band-pass (BP), low-pass (LP) and band-reject (BR) functions is presented in this paper. Two active building blocks used in this implementation is the modified version of current controlled current conveyor transocnductance amplifier (M-CCCCTA) with two grounded capacitors. It doesn’t require any external passive resistor. With this structure, it is attractive to fabricate into monolithic chip. The quality factor or bandwidth of the filter is electronically controlled without influencing the natural frequency. The input node feeding the input voltage is high impedance. Pspice simulation results of the presented filter employing the parameter models of the PR200N and NR200N bipolar transistors from AT&T are performed to verify the performances and theoretical analysis.

PL

W artykule opisano uniwersalny filtr wykorzystujący modyfikowaną wersję wzmacniacza transkonduktancyjnego CCCCTA oraz dwa uzimione kondensatory. Nie są używane zewnętrzne rezystory. Współczynnik dobroci i pasmo są dobierane elektronicznie. Przeprowadzono symulacje układów z tranzystorami bipolarnymi PR200N I NR200N.

Słowa kluczowe

EN

CCCCTA; universal filter; electronic controllability

PL

filtr uniwersalny; układ CCCCTA

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2019
• Tom: R. 95, nr 5
• Strony: 153--156
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Na Songkla Supayotin

• Department of Electronics Technology, Faculty of Industrial Technology, Suan Sunandha Rajabhat University, Dusit, Bangkok, 10300, Thailand

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).