Most Recent Update

  • Thermal Testing - With the various layout errors on the last set of boards fixed, the controller seems to work as expected, so I've been doing some thermal testing. I strap...
    2 weeks ago

November 23, 2011

Retro Rechargeable USB Booster


This project started when I found a 7805 voltage regulator when I was searching through old circuit board for useful parts to scavenge.  Since these chips are often used in DIY USB chargers, I decided to build such a charger, but with some major improvements over the typical 9V battery powered chargers housed in Altoids tins.


Retro Rechargeable USB Booster