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Analisis Rangkaian Elektrik - Ee-cafe.org

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Tabel 3.1. Pasangan Transformasi LaplacePernyataan Sinyaldi Kawasan t : f(t)Pernyataan Sinyal diKawasan s : L[f(t)]=F(s)impuls : δ(t) 1anak tangga :eksponensial :cosinus :sinus :u(t)[e −at ]u(t)[cos ωt] u(t)[sin ωt] u(t)cosinus teredam : [e −at cos ωt] u(t)sinus teredam :[e −at sin ωt] u(t)cosinus tergeser : [cos (ωt + θ)] u(t)sinus tergeser :ramp :ramp teredam :[sin (ωt + θ)] u(t)[ t ] u(t)[ t e −at ] u(t)3.3. Sifat-Sifat Transformasi Laplace3.3.1. Sifat UnikSifat ini dapat dinyatakan sebagai berikut.s1s1s + as222+ ωω2s + ωs + a2 2( s + a) + ωω2 2( s + a) + ωscosθ − ωsinθ22s + ωs sin θ + ωcosθs2+ ω12s12( s + a) 2Jika f(t) mempunyai transformasi Laplace F(s) maka transformasibalik dari F(s) adalah f(t).59

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