Second order current-mode quadrature oscillators using OTAs

• Autorzy: Thosdeekoraphat T. , Thongsopa C. , Summart S. , Seatiaw C.

Identyfikatory

DOI

10.15199/48.2016.02.43

Warianty tytułu

PL

Oscylator prądowy drugiego rzędu wykorzystujący wzmacniacze transkonduktancyjne

• Języki publikacji: EN

Abstrakty

EN

This article presents new current-mode quadrature oscillator circuits using OTA which are designed from block diagram. The proposed circuits consist of three OTAs and two grounded capacitors. The circuits have high output impedance appropriate for cascade connection application in current mode technique which is capable to directly drive load. The oscillators use only grounded capacitor which is very appropriate for further development into an integrated circuit. In addition, the condition of oscillation can be adjusted orthogonally from the frequency of oscillation. The results of PSPICE simulation program are corresponding to the theoretical analysis.

W artykule opisano nowy prądowy generator wykorzystujący OTA – operacyjny transkonduktancyjny wzmacniacz. Układ składa się z trzech wzmacniaczy i dwóch uziemionych kondensatorów. Obwód ma dużą impedancję wyjściową.

Słowa kluczowe

EN

current-mode; quadrature oscillator; OTA

PL

oscylator; wzmacniacz transkonduktancyjny; wyjście prądowe

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2016
• Tom: R. 92, nr 2
• Strony: 156--160
• Opis fizyczny: Bibliogr. 40 poz., rys., tab., wykr.

Twórcy

autor

Thosdeekoraphat T.

• School of Electronic Engineering, Suranaree University of Technology, 111 Suranaree Avenue, Muang, Nakhon Ratchasima, 30000, Thailand

autor

Thongsopa C.

• School of Electronic Engineering, Suranaree University of Technology, 111 Suranaree Avenue, Muang, Nakhon Ratchasima, 30000, Thailand

autor

Summart S.

• Department of Computer Technology, North Eastern Technological College, Muang District, Khon Kean, 40000, Thailand

autor

Seatiaw C.

• Department of Electronics and Telecommunication Engineering. Rajamangala University of Technology Isan, Khon-Kean Campus, Muang District, Khon-Kean, 40000, Thailand

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.