At 12:45 PM 3/12/2003 -0500, you wrote: >Anyone have good info/links on how to design/wind transformers? >I've searched the local bookstores, but no dice. Switchmode Power Supply Handbook (McGraw Hill) is written by an old pro from Hammond Transformers in Canada and has good information on the details, including rare information on meeting safety agency approvals and fractional turn winding. I don't recall if it has the latest info on triple-insulated technology. 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: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu