For those interested in PFC solutions: look at the page of http://www.g-p-t.com They have a part which integrates the controller and the MOSFET in a 5-pin TO220 housing which has a power range of 700W. Also, there is a 8-pin controller available which is compareable with the IR 1150 type. Regards, Thomas -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist