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New Third-Order Oscillators Using Two or Three Amplifiers

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Abstract

In this work, we consider the design of third-order oscillators that are built around a multi amplifier structure with two- or three-amplifiers topologies. We derive all the possible oscillators that could be constructed using combinations of RC or RLC elements and provide the oscillation frequency and the oscillation start-up condition in each case. Multi-outputs are produced from the topology with phase-shift relationships that are governed by impedance ratios. All the reported RLC oscillators are canonical and require only three reactive elements and one resistor. Parasitic effects are considered for a sample designed oscillator circuit and chaos generation as a possible application is demonstrated. Circuit simulations using Spice and experimental results are given to verify the theory.

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Authors and Affiliations

  1. Department of Electrical Engineering, University of Sharjah, Sharjah, United Arab Emirates

    A. S. Elwakil

  2. Department of Electrical and Software Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada

    A. S. Elwakil & B. J. Maundy

  3. Department of Physics, Electronics Laboratory, University of Patras, Rio, Patras, 26504, Greece

    C. Psychalinos

Authors
  1. A. S. Elwakil
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  2. B. J. Maundy
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  3. C. Psychalinos
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Correspondence to B. J. Maundy.

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Elwakil, A.S., Maundy, B.J. & Psychalinos, C. New Third-Order Oscillators Using Two or Three Amplifiers. Circuits Syst Signal Process (2024). https://doi.org/10.1007/s00034-024-02712-3

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  • DOI: https://doi.org/10.1007/s00034-024-02712-3

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