Abstract :
Sources ration used in cell phones is the battery, when the battery voltage is over the
phone can not be used as it should. Presumably these problems could be solved if there is a
mobile device without using the power supply from PLN power ration is less practical, but
with the use of a DC voltage that is around us, a cell phone charger circuit design is divided
into several blocks, namely sequence block astabler multivibrator circuit, circuit blocks
voltage doubler and voltage regulator circuit blocks. With the design of the device can be
used for the charging process. Another advantage with a charger device is able to dole more
than one mobile phone simultaneously and without relying ration of PLN, so it is portable
results obtained from the design of this device is that it can be used for charging mobile
phones and other devices such as the iPod 30 pin, 20 pin Samsung combie , LG 18 pin, 20
pin Samsung, Micro USB, Nokia 2.0, Nokia 3.5, PSP, mini USB and Sony ericson. The
voltage generated in the whole series is equal to 6.23 V. With a voltage of 6.23 V can already
be used for charging mobile phones, as well as on a normal mobile phone charger that
produces an output voltage of approximately 5 V. For the development is expected to be
charging more apart from the type of mobile phone.
Keywords: Series of chargers, mobile phone, power ration DC