Portable USB Charger is a device that will charge things like Ipods, PDAs, that accepts charge from a USB port. It runs off a 9-V battery, and through the simple circuit, out comes a regulated 5-V perfect for a USB port. Portable USB chargers will always be handy, lets face it these days every gadget around us has USB charging capabilities. This is a very basic and simple project, and cheap too. Maybe its time for you to build your own diy portable USB charger.
Portable USB Charger does the job, is cheep to make, and is a fun project for someone that wants to learn a bit about electronics. Also, if the looks bother you, there are always ways to pretty things up.
LM/MC 7805 +5VDC Voltage Regulator
Type-A Female USB Port
100 UF Electrolytic Capacitor
0.1 UF Capacitor
150/160 ohm Resistor
9V Battery clip
2V 20mA LED color of your choice
Unprinted circuit board
ON/OFF switch if you want
Do exactly as I drew in the diagram.
Use a continueity tester or multi-meter to make sure the parts separated by the black mark in the picture DO NOT conduct. Then drill holes to put the components mark in the correct order and observe polarity for the 100 uF cap.
Lastly put the 9-V battery clip onto the circuit board, and you got your self a portable USB Charger.
Portable USB Charger
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