EMI-EMC Analysis and Noise Reduction on PCB
EMI-EMC Analysis and Noise Reduction on PCB
EMI-EMC Analysis and Noise Reduction on PCB
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� Current is the primary<br />
cause of loop radiati<strong>on</strong><br />
� High impedance power<br />
distributi<strong>on</strong> systems<br />
generate noise in<br />
proporti<strong>on</strong> to current<br />
Radiated <str<strong>on</strong>g>EMI</str<strong>on</strong>g> Basics<br />
� Inductive paths generate<br />
noise in proporti<strong>on</strong> to<br />
current switching speed<br />
V =<br />
IZ<br />
<strong>PCB</strong> pwr/gnd layers<br />
V =<br />
L<br />
di<br />
dt
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