$1 USB Car Charger From 3 Parts

You would like to travel on car, but you haven't charger for your phone/navigator/camera? With my instructable you can make it very easy. You need only 3 parts, that you can buy for $1!

Parts

1. Box from old charger (I use box from old siemens charger).
2. Radiator or metal plate ( Link)

3. USB port (Link)

4. Voltage Regulator LM7805 or L7805CV or L7805 (Link).

5. Сapacitor 0.33 μF
6. Сapacitor 0.1 μF
You can not use capacitors, but i highly recommend to use it.

Whats Need

1. Soldering-iron.
2. Some wires.
3. Glue gun or another glue.

Voltage Regulator

At first you need to solder wires to voltage regulator and isolate it.

Connect Voltage Regulator

Connect Input wire via capacitor (0.33) to gnd. After connect Output wire via capacitor (0.1) to gnd. Connect Input to "+" of box and connect gnd to "-" of box.

Connect USB

Now you need to connect USB port. Connect GND to GND and 5V to Output pin on Voltage Regulator.

Test It

To test you can use multimeter or any usb tester.

Plase All in Box

You need to cut a hole in the top of box and plase all to box. After you need to glue USB port

P.S.

Thank you for reading my instructable. I try to make instructable very short becouse i don't know english well. If I made a few mistakes, please forgive me)