On Sunday 10 July 2005 03:16 pm, Robert Hedan wrote:
> Hi,
>
> I've just uploaded a schematic of a 40V 3A circuit that I put together.
> I've thrown in every security measure I could find in the DigiKey manual as
> an exercise. The file is in FILES / Power supplies. This link may (or may
> not) work:
> <http://f1.grp.yahoofs.com/v1/MHDRQjmKCjHN8hORzw6Lxapg3rQLHR9sg4BZ8ePemrCIK
>l
> pX6E8d2Q1QnZ52WUfAGgpe1uV08UyZCt9sgF5IHEcaLLyziJI/Power%20supply/Drilling%2
>0 station%2040V%203A%20steppers.JPG>
The link does not work. Yahoo uses some kind of dynamic setup where they move
things around, and links that look like this often don't work for long -- if
I load a page listing files in one of the groups it often doesn't work after
a while.
> Please let me know if I have design flaws, is the fuse rating high enough,
> components in series instead of parallel or vice versa, suggestions for
> additional security measures, improvements in filtering, etc.
The only thing I'd do differently is to move D2 so it's right at the output of
the regulator, which I'm assuming it's in there to protect.
> This is my first power supply and I don't want to have problems with it in
> the future. I also want to make it as robust as possible. A separate 5V
> circuit will power the logic circuitry, this is exclusively for the
> steppers.
I'm not familiar with that regulator, and will see if I can snag a datasheet.