In a message dated 96-12-11 09:57:01 EST, you write:

>What's about a light source (light-bulb connected to AC) and some
>solar-cells ?  :-)

My application requires much more current than a solar panel of reasonable
size can produce from any light source.

Mark A. Corio
Rochester MicroSystems, Inc.
200 Buell Road, Suite 9
Rochester, NY  14624
Tel:  (716) 328-5850 --- Fax:  (716) 328-1144
http://www.frontiernet.net/~rmi/

***** Designing Electronics For Research & Industry *****