> . > > > Beware of the bifurcation. > > The what? http://www.smpstech.com/chaos000.htm PSM isn't a bad way to go for battery charging, even down at 60 Hz. They don't really care much. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist