Don't know about a formal spec for this one, but the general "rule of thumb"
for low frequency conducted is less than 1% of the regulated value. For
example, less than 5mV peak to peak from the 5 Vdc, less than 12mVpp from
the 12Vdc, etc. Typically, the supplies put out half those values.
If your supply does more than that, it won't be competitive.
- Robert -
PS Better than that, and people don't notice. They notice efficiency and
size first.
-----Original Message-----
From: Derek Walton <[email protected]>
To: EMC Discussion Group <[email protected]>
List-Post: [email protected]
Date: Tuesday, November 16, 1999 8:16 PM
Subject: Conducted Emissions for PS output
>
>HI,
>
>would anyone like to suggest a specification for controlling conducted
>emissions from the output of a power supply or battery charger. The
>market place is either the USA or Europe.
>
>Thanks,
>
>Derek.
>
>--
>Derek Walton
>Owner
>L. F. Research EMC Design and Test Facility
>12790 Route 76,
>Poplar Grove,
>IL 61065.
>www.lfresearch.com
>
---------
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