At 12:43 PM 6/22/2004 +0200, you wrote: >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 The CM choke should be taking care of the power supply issues, but maybe there is other stuff getting through the inputs/outputs. You need to pay special attention to the paths of those currents.. Best regards, Spehro Pefhany --"it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.