I'm not sure if the question is technical or spec-ese. I don't know the spec-ese answer, but technically the answer is straight-forward. If the anticipated loads are not antenna-connected receivers, then the only CE concern is that the output wires not radiate sufficiently to cause rfi. You can look at present FCC/CISPR limits for that, with one important caveat. You need only apply such limits to common mode emissions. Differential mode emissions won't radiate significantly as long as feeder and return are in close proximity. DM limits could be 20 - 30 dB relaxed or more, depending on the proximity of feeder and return. For instance the kind of "brick" power supply that has a coaxial power output would not, in my opinion, require any frequency domain dm CE control.
---------- >From: Derek Walton <[email protected]> >To: EMC Discussion Group <[email protected]> >Subject: Conducted Emissions for PS output >Date: Tue, Nov 16, 1999, 8:33 PM > > > 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 > > > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to [email protected] > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to [email protected], > [email protected], [email protected], or > [email protected] (the list administrators). > > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
