Simple 5v PSU (battery powered)

Hello,

this is my first instructable a longgg timmeee, and in that time, I have learned much, such as soldering is a good thing, melting plastic is a bad thing and that using the correct components mounted on a board is a good thing.

But less of that and on with the instructable.

Step 1: Components

Components--
9v Battery Clip OR DC Jack
9v Battery OR ~9v AC-DC transformer
10uf capacitor
0.1uf capacitor (or 100n capacitor)
L7805CV 5v regulator (..or pretty much any other 5v regulator)
assortment of wire
a heatsink for the regulator (optional)
old piece of board

Tools--
Soldering Iron
Solder
Pliers

Comments

[spark light]

Nice intractable! I would recommend putting a higher value cap on the input, and another cap on the output, also with a higher value. This is because the regulator itself will out out some ripple, and that can become a large thing for heavy loads. just a suggestion. ;)

[rockyt]

what does it do?

[xAxrules]

supply it with 9v, and it will put out 5v, which is useful for testing and/or powering/charging USB devices