Hi again, One of my current PIC projects includes high voltage (+/-100V) supplies derived from 110VAC mains. Recently there was some discussion here about isolation vs non-isolation (I am 100% in favor of isolation for this application as it can not be totally insulated). There was discussion about using capacitive isolation instead of an isolation transformer. Has anyone done something like this for higher currents (>1 amp)?? I would appreciate any pointers or success/failure stories. Thanks. Mark A. Corio Rochester MicroSystems, Inc. 200 Buell Road, Suite 9 Rochester, NY 14624 Tel: (716) 328-5850 --- Fax: (716) 328-1144 http://www.frontiernet.net/~rmi/ ***** Designing Electronics For Research & Industry *****