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Modellering i Tidsplanet

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Faltning Differensekvationer Differentialekvationer<br />

Elektriskt system<br />

Kirchoff’s lag (summa spänning i<br />

lopen är noll)<br />

Utnyttja i = C dy<br />

dt<br />

y + Ri − x = 0<br />

Konstitutiva samband<br />

v(t) = Ri(t)<br />

i(t) = C dv(t)<br />

dt<br />

v(t) = L di(t)<br />

dt<br />

y + RC dy<br />

dt − x = 0<br />

Första ordningens<br />

differentialekvation<br />

RC dy(t)<br />

dt<br />

+ y(t) = x(t)

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