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EMI noise filter

Tera-Scale

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Tera-Scale

Joined Jan 1, 2011
164
What exactly is the purpose of an EMI noise filter inside a ups as I have just obtained a damaged one and i am taking it apart to analyze it. The filter is at the mains input supply. Thanks for any explanations. i am not sure if the filter is there to block interference coming in from the mains, or else from the ups itself when it is operating.

Brandon
 
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