Archives of Electrical Engineering (Sep 2020)

Synthesis of active LTV elements

  • Anna Piwowar,
  • Janusz Walczak

DOI
https://doi.org/10.24425/aee.2020.133914
Journal volume & issue
Vol. 69, no. 3
pp. 487 – 498

Abstract

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The article proposes the method of synthesis of active elements with time-varying parameters R(t), C(t) and L(t). In order to construct the elements, it is necessary to use operational amplifiers, multipliers and classic RLC components. The variability in time of the elements results from applying voltage to control terminals. Assuming that the parameters of elements R(t), L(t), C(t) are exponentially varying, dependencies describing the control voltage waveforms which enable such a parameter variability were determined. The obtained results were illustrated with examples and PSpice simulations.

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