> > > So - anyone have any ideas on how to scale a 0-90V source to 0-3.42V at > > about a third of an amp current, efficiently and compactly, and without > > requiring a seperate power supply? > > > Why this voltage range? > > What are you trying to measure - voltage or current? > > Read the earlier posts in this thread, he's trying to power an led module from the 90 volt source. -Denny -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.