it wasn't a typo. yup, 0-500V, 2 amps max. it' just 1kw. im just trying to experience the high voltage side of things that's why i entered such project. ;) can any of you guys help me in the design procedure. i have some knowledge in SMPS and transformers but i guess i need some clear guidelines to help me do this project. especially in creating my full bridge and building my transformer. thanks. im planning to use a 220 line input.