Russell McMahon wrote: > > > > Here's a simple RC oscillator that MAY show promise for driving very low > > > voltage boost inverters. > As I noted, it's a two edge sword. As I noted, it frees up the oscillation > frequency and control from the inductor characteristics or how you drive the > inductor. This means it's hard to get every last skerrick * of performance > from the inductor BUT it would probably make it easier to drive it well > without the drive tailing off at the ends Ok so the main use you see is as an oscillator to drive the power stage. I'm still not sold, with low voltage input wouldn't it be best to tailor oscillation more around the inductor current, so that when the switch turns OFF you get a nice packet of energy to the output? It is an interesting circuit though. :o) -Roman -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics