4
Input EMI filter
The
is compliant with CISPR16-4-2.
An input filter helps to reduce EMI. This filter consists of:
•
a double pi filter with an inductor (L2);
•
a ferrite bead (L5);
•
MLCC capacitors (C18, C19, C20, and C30);
•
an electrolytic capacitor used for a bulk energy storage;
•
an input damping.
By default, the ferrite (R25 = 0 ohm and L5 NC) is not used. Only the pi filter is set.
UM3024
Input EMI filter
UM3024
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Rev 1
page 5/24
