Emergency Power Bank
by SHAMSUDHEEN MARAKKAR in Circuits > Electronics
5642 Views, 72 Favorites, 0 Comments
Emergency Power Bank
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Hi friends, in this instructable i am gonna share you how i made this simple emergency power bank.
This is a quick and simple diy and also cheap.
Collect the Things That Needed.
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A few things are needed.
1. Take a dead 9 V battery, break it down and take the connector clip alone.
2. A small piece of copper clad board.
3. 7805 voltage regulator (SMD).
4. USB female port.
Make the Circuit.
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The circuit is really simple one with 7805 regulator IC.
Using the circuit diagram ,7805 and USB port ,draw a layout diagram on a piece of copper clad board.
Then do the chemical etching process using ferric chloride.
Solder the Components
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Solder the components carefully on the board.
Final Finishing Work...!
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- Connect +ve and -ve wires from the pcb to the connecting clip of 9 V battery.
- Now fix them together using hot glue.
Its Ready....!
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Now the 5V USB emergency power bank is ready.
Have fun :)