Common-Mode Currents Can Sink Your EMC Tests
Get paranoid about hidden parasitic effects.
Return path parasitics cause voltage drops in your circuits.
These drops generate common-mode currents across conductors.
Cables connected to the Return and Reference Plane (RRP) act as antennas and radiate noise.
Even microamps can lead to EMC test failures.
Fixing EMI after the EMC test fails is a painful, expensive lesson.
Learn from these simple mistakes and address return path issues upfront.
Obsess over minimizing return path impedance in your design.
This reduces common-mode currents to pass EMC tests.
-Dario
P.S. Want to master EMI control and pass EMC?
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