Olin Lathrop wrote :

> Page 1: Power supplies.  The board will run from many
> cheap AC wall warts. There will be a 1.3mm socket for
> the same wall wart I use for the EasyProg and ProProg,
> plus screw posts for both AC and DC bare wire 
> inputs.  The final rectified voltage needs to be about
> 11-30 volts.  DC supplies from 12 to 30V will work fine. 
> A basic buck regulator makes 5.5V, which is linearly
> regulated to 5.0V with an LDO.  I've done this in another 
> design and it worked very well.

Just thinking here...

*Must* a PSU for a rather small board have *that*
many components and beeing so complex. What happend
to the simple DC-in/7805-and-a-couple-of-caps type of PSU ?
Isn't that good enough for this kind of board ?

Otherwise, on the rest of the pages, I can't see any particular
problem right now.

How do you plan the connections to the outside ?
Pin headers like on Wouters Dwarf boards ?
Or maybe miniature "terminal blocks" ? Where you use just
a screw driver to to connect other equipment. Could be
part of the prototyping area, I guess...

Jan-Erik.



-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist