Hello,
I'm wanting to produce a box that will take the output from my dynamo hub and use it to charge 2 AA batteries or something via USB.
I understand that the hub output is about 6v AC and I will need 5V DC for charging purposes.
I've found this little kit at maplin that looks like it might do the trick.
Just need to add an AA case and a USB socket, put them both in pararel from the output and only use it to charge via the USB or the AA case.
I know that the circuit will need to be set to provide the 5v output which is fine, I'm just wondering if the circuit will provide 5v output from a 6v input. Is the split between the two volatges large enough?
I've found another circuit that uses a difference regulator, which will work, but I doesn't come as a kit- and I prefer that idea.
Anyone out there got any views?
Thanks,
Spencer
I'm wanting to produce a box that will take the output from my dynamo hub and use it to charge 2 AA batteries or something via USB.
I understand that the hub output is about 6v AC and I will need 5V DC for charging purposes.
I've found this little kit at maplin that looks like it might do the trick.
Just need to add an AA case and a USB socket, put them both in pararel from the output and only use it to charge via the USB or the AA case.
I know that the circuit will need to be set to provide the 5v output which is fine, I'm just wondering if the circuit will provide 5v output from a 6v input. Is the split between the two volatges large enough?
I've found another circuit that uses a difference regulator, which will work, but I doesn't come as a kit- and I prefer that idea.
Anyone out there got any views?
Thanks,
Spencer