Hello All,

I have been given a DC-DC switch mode power supply that uses 48V DC input to 
test for both emissions and immunity. Can someone let me know if I am correct 
to assume:

1- Can the same AC version LISN be used for DC-DC product? i.e rather than 
feeding AC, I can feed 48V DC into the LISN and the output of the LISN to my 
EUT?

2- Can the same limits in EN55022 be used for the DC-DC?

3- The only applicable immunity tests will be ESD and RF Immunity?

Your help is very much appreciated.

Many thanks
Peter
E-mail: [email protected]

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