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PERTURBATIILE DE MOD<br />

NORMAL :<br />

U sursă<br />

Conductor<br />

activ 1<br />

Z S<br />

Conductor<br />

activ 2<br />

U<br />

apar intre conductoarele de ducere si de intoarcere<br />

ale circuitelor, respectiv intre bornele de intrare ale<br />

sistemelor perturbate<br />

P<br />

=<br />

U<br />

Curentii perturbatori de mod normal au, pe traseul de ducere si de intoarcere, aceeasi<br />

directie ca si curentii produsi de semnalul util.<br />

Perturbatiile de mod normal apar, in majoritatea cazurilor, prin cuplaj magnetic.<br />

2009-20<strong>10</strong> SEM - CURS <strong>10</strong> 16<br />

I 1<br />

I MN<br />

I MN<br />

MN<br />

I 2<br />

Z<br />

R<br />

Z<br />

+<br />

R<br />

Z<br />

S<br />

Z R

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