captainam3rica
- Jun 17, 2011
- 3
- Joined
- Jun 17, 2011
- Messages
- 3
So I'm trying to make a solar powered usb charger, below is my circuit diagram. With it set up this way, it charges up fine to about 4.9v but then when I plug my ipod into it, it shows it's charging for a few seconds then the voltage drops to about 4.5v and then drains at a constant rate from there about 0.1v every second or two.
I tried adding in another AA to give me about 6v to try and counter the voltage drop, but when I plug in my ipod nothing happens. Thinking that 6v may be too much for devices that are supposed to use 5v, I tried some different resistors going from the batteries to USB with no luck, the ipod does nothing.
It seems this should be a simple fix but I'm a beginner so I'm stuck. All help is appreciated, thanks.
I tried adding in another AA to give me about 6v to try and counter the voltage drop, but when I plug in my ipod nothing happens. Thinking that 6v may be too much for devices that are supposed to use 5v, I tried some different resistors going from the batteries to USB with no luck, the ipod does nothing.
It seems this should be a simple fix but I'm a beginner so I'm stuck. All help is appreciated, thanks.
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