Current-mode variable current gain first-order allpass filter employing CFTAs

• Autorzy: Iamarejin A. , Suwanjan P. , Jaikla W. , Maneewan S.

Warianty tytułu

PL

Zastosowanie układu CFTA w przesuwniku fazowym prądowym pierwszego rzędu o zmiennym wzmocnieniu prądu

• Języki publikacji: EN

Abstrakty

EN

In this study, a current-mode first order allpass filter using current follower transconductance amplifiers (CFTAs) is proposed. The features of the circuit are that: the pole frequency, phase response and current gain can be electronically controlled via the input bias current: the circuit description is very simple, consisting of 2 CFTAs, 1 resistor and 1 grounded capacitor, without any component matching requirements. Consequently, the proposed circuit is very appropriate to further develop into an integrated circuit. Low input and high output impedances of the proposed configuration enable the circuit to be cascaded in current-mode without additional current buffers. The PSpice simulation results are depicted. The given results agree well with the theoretical anticipation.

PL

W artykule przedstawiono przesuwnik fazowy prądowy pierwszego rzędu, wykorzystujący wzmacniacz CFTA. Do właściwości układu należy możliwość kontroli częstotliwości biegunowej, odpowiedzi fazowej i wzmocnienia prądowego przy pomocy wejściowego prądu stałego. Obwód składa się z dwóch układów CFTA, rezystora i uziemionego kondensatora. Przedstawione wyniki symulacyjne z programu PSpice potwierdzają skuteczność działania układu.

Słowa kluczowe

EN

first order allpass filter; current-mode; CFTA

PL

przesuwnik fazowy prądowy pierwszego rzędu; CFTA

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2013
• Tom: R. 89, nr 2a
• Strony: 238--241
• Opis fizyczny: Bibliogr. 29 poz., schem., tab., wykr.

Twórcy

autor

Iamarejin A.

• Master of Science in Industrial Education (Electrical Communications Engineering), Faculty of Industrial Education, King Mongkut’s Institute of Technology Ladkrabang (KMITL)

autor

Suwanjan P.

• Department of Engineering Education, Faculty of Industrial Education, King Mongkut's Institute of Technology Ladkrabang, Ladkrabang, Bangkok, 10520, Thailand

autor

Jaikla W.

• Department of Engineering Education, Faculty of Industrial Education, King Mongkut's Institute of Technology Ladkrabang, Ladkrabang, Bangkok, 10520, Thailand

autor

Maneewan S.

• Department of Electronic Technology, Faculty of Industrial Technology, Buriram Rajabhat University, Buriram,31000, Thailand

Bibliografia

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