First off i like to thank everybody in this forum that has given me help, it is much appreciated. the 200v will be running 16 devices connected in series with a current requirement of around 10-15 amps. I guess it looks like i am going to have to do a lot of research on MOSFETS and IGBT. If anybody has any good sites that has a great explanation of these devices it would be much appreciated. All and all thank yall once again. Yall help is more than expected.