Portable charger
Smartphones is
gadget for everyone, nowadays. And commonly the have problem the battery life. It
will easy if we stay at home, but how about if we are living or in location
that does not have electricity. Or how about if we are in camping, travelling
etc. it’s so
To avoid these problems, we can make a portable charger and powered by 9 volt batteries. Let me try with this schema from http://www.instructables.com/id/Pocket-USB-charger/
We need some
electonic component list below
1 Resistor 150 Ohm;
1 Elco 100 uF;
1 Capacitor 0.1
1 IC Regulator IC7805;
1 LED
1 Female USB connector;
1 Battery connector;
1 key to turn on and off the set;
1 battery 9 volt
1 Elco 100 uF;
1 Capacitor 0.1
1 IC Regulator IC7805;
1 LED
1 Female USB connector;
1 Battery connector;
1 key to turn on and off the set;
1 battery 9 volt
1 PCB board
And here the
circuit
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