|iPhone charger not supported|
You might wonder why you can't charge your iPhone using the ordinary USB charger you bought. According to some sources across the web, iPhone charging scheme uses all the 4 pins of the usb port including the data lines. This simple iPhone charger can be constructed by adding only some resistor combinations across the USB data lines.
|USB port pins|
This is an ordinary iPhone charger that can be use if you are not in a hurry. Can charge your iPhone around 3 hrs if you are using high capacity battery (1420 mAh).
|500mA iPhone charger circuit|
5V regulated DC supply like on your computer PSU
Note: make sure that your supply is regulated and can deliver atleast 500mA current.
iPhone Fast Charger circuit (1A)
This is a fast charger allows your iPhone to be charged around 1A current or making your iPhone fully charged around one and half hour for 1420 mAh rated (high capacity) battery.
|Fast charger schematic|
5V regulated supply like on your computer PSU
Note: make sure that your supply is regulated and can deliver atleast 1A current.
Note: circuit above is considered working, but use it at your own risk.