> Does anyone know (or know where to get info) on how to design an inverter > transformer? > Its input is 24-0-24 V square wave 100kHz or 20kHz (havn't decided yet) > Its outputs are- 1x 432 V at 2400W > and 1x 12 V at 6W. You mentioned elsewhere that there will be IGBT's on the output. It seems to me that there is a better way of doing this. What is the end use of the output voltage? -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.