At 05:57 PM 3/26/01 +0000, Bob Blick wrote: >On Mon, 26 Mar 2001, Byron A Jeff wrote: > > > In my never ending quest to develop a robust and easy to build power supply > > for my mobile MP3 player... > >http://www.bobblick.com/bob/projects/yamm/ There is a variant of the boost that uses a tapped inductor to lower the inductor requirements. The only tradeoff is that the switch needs to be a bit higher voltage. (usually not a problem) -- Dave's Engineering Page: http://www.dvanhorn.org Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9 -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body