Derek The most common method I've found effective - even after sale- is the use of a toroidal ferrite core , large enough to take 8-9 turns of the power cord, mounted as close to the supply as possible. There is 15-20 dB decoupling to common mode noise provided by this method and I've used it hundreds of times. It also prevents ingress of RF.
Ralph Cameron Independent EMC Consultant ----- Original Message ----- From: Derek Walton <l...@rols1.net> To: EMC Discussion Group <emc-p...@ieee.org> Sent: Tuesday, November 16, 1999 6:33 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 > > > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > > > --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
