New voltage-mode quadrature oscillator employing single DBTA and only grounded passive elements

    • Herencsar Norbert
    • Department of Telecommunications, Faculty of Electrical Engineering and Communication, Brno University of Technology
    • Koton Jaroslav
    • Department of Telecommunications, Faculty of Electrical Engineering and Communication, Brno University of Technology
    • Vrba Kamil
    • Department of Telecommunications, Faculty of Electrical Engineering and Communication, Brno University of Technology
    • Lahiri Abhirup
    • Division of Electronics and Communications, Netaji Subhas Institute of Technology, University of Delhi

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抄録

A new voltage-mode quadrature oscillator employing single differential-input buffered and transconductance amplifier (DBTA), three grounded capacitors, and two grounded resistors is presented. The use of only grounded capacitors and resistors makes the proposed circuit ideal for integrated circuit implementation. Outputs of two sinusoidal signals with 90° phase difference are available in the proposed quadrature oscillator. The oscillation condition and the oscillation frequency are independently adjustable by different grounded passive elements. The passive and active sensitivities of the proposed circuit configuration are low. PSPICE simulation results are given to verify the theoretical analysis.

収録刊行物

IEICE Electronics Express  

IEICE Electronics Express 6(24), 1708-1714, 2009 

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