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Analisis Rangkaian Listrik Jilid-2 - Ee-cafe.org

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Transformasi Laplace<br />

Tabel 3.2. Sifat-sifat Transformasi Laplace<br />

Pernyataan f(t)<br />

Pernyataan F(s) =L[f(t)]<br />

linier : A 1 f 1 (t) + A 2 f 2 (t) A 1 F 1 (s) + A 2 F 2 (s)<br />

integrasi :<br />

∫ t<br />

f ( x)<br />

dx<br />

0<br />

F (s)<br />

s<br />

diferensiasi :<br />

df ( t)<br />

−<br />

sF ( s)<br />

− f (0 )<br />

dt<br />

3<br />

d f ( t)<br />

3<br />

dt<br />

linier : A 1 f 1 (t) + A 2 f 2 (t)<br />

translasi di t: [ f ( t a)<br />

] u(<br />

t − a)<br />

2<br />

d f ( t)<br />

2 −<br />

s F ( s)<br />

− sf (0 ) − f ′(0<br />

− )<br />

2<br />

dt<br />

3<br />

s F(<br />

s)<br />

− s<br />

− sf (0<br />

2<br />

−<br />

f (0<br />

−<br />

)<br />

) − f ′′ (0<br />

A 1 F 1 (s) + A 2 F 2 (s)<br />

− −<br />

e as F(s)<br />

translasi di s : e − at f (t)<br />

F ( s + a )<br />

−<br />

)<br />

penskalaan : f (at)<br />

1<br />

a F<br />

⎛<br />

⎜<br />

⎝<br />

s<br />

a<br />

⎞<br />

⎟<br />

⎠<br />

nilai awal : lim f ( t)<br />

lim sF ( s)<br />

t→0+<br />

s→∞<br />

nilai akhir : lim f ( t)<br />

t→∞<br />

lim sF ( s)<br />

s→0<br />

konvolusi :<br />

∫<br />

t<br />

0<br />

f ( x)<br />

f<br />

( t<br />

1 2 −<br />

x)<br />

dx<br />

F 1( s)<br />

F2<br />

( s)<br />

67

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