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 <[email protected]> To: EMC Discussion Group <[email protected]> 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 [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).
