- Tag Your Green Contest 0 – Introduction
- Tag Your Green Contest 1 – Preliminary Design
- Tag Your Green Contest 2 – Designing a Solar NiMH Charger
Make Magazine is running another contest. After my father and grandfather got caught high and dry on the Carnival Splendor, I thought it would be nice to build a USB device charger, a la Minty Boost, that could be recharged with solar energy. I’m not going to have a lot of time before the Dec 31 deadline, and I’ve never really designed power supply systems before, so we’ll see if I get anywhere with it. The last contest turned out rather well for me, though, so I figured it is worth a shot.
Here, in more detail, are the goals:
- It should be capable of recharging all the devices (various iPhones, iPods, etc.) that Minty Boost can recharge.
- It should be relatively small and compact, though that will likely be limited by the solar panel size.
- The solar panels should be removable.
- The solar panels should be capable of driving the device charger directly.
- The solar panels charge the built-in batteries as fast as possible, given the current available.
- The solar panels should be relatively low-cost and readily available.
[Edit] Hmm, it appears this has been done already, so maybe I’ll have to come up with something new or improved..
[Edit 2] I have decided on some improvements, and will be going forward with this build. See the Preliminary Design Notes for more…
[Edit 3] I have updated the goals, to make this introduction more clear.