Although this may look ghetto, it 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.
“The project name says it all. It 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.”
Step 1: Buy
Parts
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
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
Step 2: The
Circuit Board
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.
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.
Step 3: USB
Port
Step 4: The
Finishing Touch
Lastly put the 9-V battery clip onto the circuit
board, and you got your self a portable USB Charger.
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