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음... 영어사이트라는 단점이 있긴하지만 유용한 정보들이 가끔 올라오는 것 같습니다.
아래는 그 중에..
MP3 플레이어를 태양열을 이용해서 충전하는 방법을 소개한 페이지입니다.
http://www.instructables.com/id/Simple-Cheap-MP3-Player-Solar-Charger/
introSimple, Cheap MP3 Player Solar Charger
This is a really simple tutorial on how to make a solar charger for your MP3 player. This won't work with an iPod touch (The iPod ignores it, it's not an apple product), but should work with most generic players. I use it for my CreativeZen player.
I bought my solar cells HERE . It's the best prices I can find, plus free shipping!
This panel charges @
5.13 Volts
.8 amp to 1 amp; in full sun
Because MP3 players have built in battery savers, there is no need for an electronics board or battery sensor. It's physically impossible for the solar cells to spontaneously produce a higher voltage. If the voltage drops (for whatever reason) the MP3 player automatically disconnects the battery.
MP3 players automatically disconnect the battery before it overcharges
MP3 players will not discharge into the panels, they have built in diodes.
Putting it simply, the very worst that could happen is that it won't charge the player.
But I still have to say: do this project at your own risk :)
step 1What You NeedI bought my solar cells HERE . It's the best prices I can find, plus free shipping!
This panel charges @
5.13 Volts
.8 amp to 1 amp; in full sun
Because MP3 players have built in battery savers, there is no need for an electronics board or battery sensor. It's physically impossible for the solar cells to spontaneously produce a higher voltage. If the voltage drops (for whatever reason) the MP3 player automatically disconnects the battery.
MP3 players automatically disconnect the battery before it overcharges
MP3 players will not discharge into the panels, they have built in diodes.
Putting it simply, the very worst that could happen is that it won't charge the player.
But I still have to say: do this project at your own risk :)
1) 9 x 1 amp, .57 volt solar cells. I bought mine HERE 2) Tabbing wire or fine electronics wire. I bought mine HERE 3) 8 x 10 cheap plastic picture frame from Wall Mart 4) USB extender with female USB adapter. $1.00 at Dollar Tree. Wood/foam core,Solder, flux pen/ normal flux, soldering iron, and soldering skills :) I recommend you wear latex gloves when you w…
step 2Solar CellsThe cells you will need: HERE . These are high efficiency cells, and at the best prices I've ever seen. You'll notice these aren't the EXACT cells I used. I bought some larger cells from this same seller about week ago, for another project. I had a few of these large cells leftover, so I cut them down to the right size myself. The cells I used are the same size as th…
step 3SolderingI'm not going to go into depth on how I solder, other than how my soldering iron is set up. There is a simple tutorial on how to solder solar cells here . If you're still having trouble, Google has the answers! My soldering iron has a tinned tip. The solder sticks to the tip of the iron, so I have it when I need it. No fooling around with solder wire here! I just to…
step 4Making The FrameAfter you solder together your cells, you need to protect them in a frame. You could build one out of wood, or you could modify a picture frame. $2.00, 8x10 plastic frame with glass pane: Wall Mart The following steps are in related to the pictures, in order: -Remove the glass. -Cut out the cross shapes structural support. -File the inside corner, all the way aro…
step 5Support BoardYou need to cut out a board that fits inside the frame, as if it was a photograph originally intended for the frame :). You are going to glue the assembled cells onto this. I used wood, but foam core will work also.
step 6Gluing The CellsUse silicone caulk to glue the soldered cells onto the board you just cut. Solder the odd cell after you glue it all down.
step 7LeadsDrill 2 holes in the board, and solder the positive and negative lead to the cells. Feed the 2 wires through the two holes, and glue the board into the frame. In order to better protect the wires, I put a bit of epoxy on them.
step 8USBSolder on the USB connector to the appropriate positive and negative wires. When you cut apart the USB, you will see 4 wires...you only need the red and the black wire. The red wire is positive, solder it to the wire coming from underneath a cell. Solder the black wire, the negative wire, to the wire coming from the top of a cell. Glue the USB connector to the picture…
step 9Installing The GlassPop the glass back into the frame, and shine it up with a soft cloth. Clean glass means better light transmission, and that means more efficiency of the cells. Only use this panel in full sun, do not allow a shadow to fall on any part of the cells. A shadow on a cell can cause reverse flowing current, and this could damage the cell. Also, a shadow will slow down the c…