TY - JOUR N2 - 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. L1 - http://journals.pan.pl/Content/117011/PDF/art01.pdf L2 - http://journals.pan.pl/Content/117011 PY - 2020 IS - No 3 EP - 498 DO - 10.24425/aee.2020.133914 KW - parametric capacitor KW - parametric coil KW - parametric resistor KW - time-varying systems KW - synthesis of parametric elements A1 - Piwowar, Anna A1 - Walczak, Janusz PB - Polish Academy of Sciences VL - vol. 69 DA - 2020.09.15 T1 - Synthesis of active LTV elements SP - 487 UR - http://journals.pan.pl/dlibra/publication/edition/117011 T2 - Archives of Electrical Engineering ER -