Voltage-mode second-order filter and quadrature oscillator based-on differential difference current conveyors and only grounded elements

The voltage-mode second-order filter and quadrature oscillator are presented. The proposed configuration provides two differential difference current conveyors, three grounded resistors and two grounded capacitors. The grounded elements are designed for implementation of integrated circuit. The second-order filter is simultaneously produced three output responses of highpass, bandpass and lowpass with only single input. The quality factor and pole frequency can be independently controlled when operating in second-order filter. Moreover, the second-order filter can be modified to operate in the quadrature oscillator with the same configuration. The oscillation condition can be adjusted without effecting of the oscillation frequency. The results of simulation are in accordance with the theoretical analysis.

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Przedstawiono filtr drugiego rzędu I generator wykorzystujące dwa różnicowe konvejery DDCC, trzy uziemione rezystory i dwa uziemione kondensatory. Filtr ma trzy wyjścia dolno-, górno- i środkowoprzepustowe. Przy jednym wejściu.

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Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).