A Nokia to USB charger converter is a DIY method to charge your USB battery devices . Charge USB devices with Nokia Charger as make a small and cheap Nokia to USB charger converter for only $0.4. Let make it by collect some things from your yard.
Things needed are:
- USB female connector
- Nokia charging jack
The whole things will manage at cost only $0.4.
Now connect these as the +ve output of nokia jack to the 1st pin of Ic7805 and -ve to center pin of 7805 and to 4th pin of usb. The last pin of IC7805 is connect to the 1st pin of usb.
Now your usb is ready for the 5v power supply.The usb pin 2 and 3 are D+ and D- ,should be shorted or left open,logic of D+ D- is explained below:
The pin D+ D- play a vital roll in charging of smart devices like Apple ipod, Motorolla’s mini usb devices like Motorazor, Blackerry mobiles etc.Refer this article for Blackberry usb logic.But for ordinary usb charging devices.these pins should left disconnected.
Now you are ready for a Charge usb devices with Nokia’s charger. Don’t worry it doesn’t harm your any device, as tested on many devices.