Well, we have probably all seen the 9v altoid Ipod charger. An example is from the one that Aaron Dunlap has produced. I have to hand it to him. He has done a good job of promoting his idea. We all know though, I hope, that using a 9v battery, and a 7805 voltage regulator to produce a 5v source is a terrible way to charge an iPod.
Our friend over at ladyada.net has produced a step up power supply using 2 AA batteries stuffed inside an altoid gum canister. A step-up power supply is basically a DC-DC converter. It allows you to take a small DC voltage and up it to a higher DC voltage. Ladyada does a great job of explaining all of this, and shows how she chose the parts, and designed it. You can buy the kit from her here.
UPDATE: I forgot the link to this article. See the Minty Boost Here.
This is very similar to the DIY LED flashlight that I wrote about a while back.
14 Responses to “DIY Minty Boost”
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