Hi all I'm currently putting an inverter design through compliance testing, and have a problem with fast transients on the incoming power lines. I've added common mode chokes and Y-cap to address conducted emissions, but electrical fast transients are getting through, and dirupting operation of the processor (16F870). I'm looking as some series inductors as a solution, and was wondering if anyone on the list has had similar experiences, and how they were resolved. Input currents are around 5A. Regards Ian Rozowsky R&D Director Centurion Systems (Pty) Ltd. Box 506 Cramerview 2060 South Africa roz**@centsys.co.za ||Anti-spam - please remove the ** from the e-mail address before sending|| http://www.centsys.co.za ------------------------------------------------------------------------- This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of Centurion Systems (Pty) Ltd. Finally, while Centurion Systems attempts to ensure that all email is virus-free, Centurion Systems accepts no liability for any damage caused by any virus transmitted by this email. ------------------------------------------------------------------------- -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.