On Thu, 12 Jul 2007 17:42:44 GMT, Lostgallifreyan
wrote:

Did find this though:
http://www.claremicronix.com/datashe...0Rev053107.pdf
Again, clickable: http://tinyurl.com/2kf3jv

That's interesting because it shows 90% efficiency as I hoped might be
had, from a circuit with no large smoothing capacitor.

There might need to be some amount of filtering done on the input
that is not shown on the sample schematic. The chip needs a
minimum of 8 VDC input, so to for an AC bulb replacement, you'd
need to add a bridge rectifier and probably a small filtering cap.