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    This document summarizes a portable USB mobile charger project The charger uses an IC 7805 voltage regulator, USB female pin, 470 ohm resistor, LED, and a 9 volt battery to regulate voltage and charge devices via USB It provides the ability to charge devices anywhere without electricity by regulating the 9V battery output to the required 5V
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    The document outlines a wireless mobile battery charger that operates on the principle of mutual inductance, transferring power from a transmitter to a receiver wirelessly It includes detailed descriptions of the circuit design, components, working mechanisms, advantages such as portability, and disadvantages like low efficiency and higher
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    •Ongoing research into wireless charging systems for EVs that could be used in dynamic charging lanes or at charging stations Conclusion •Summary: • Wireless charging represents the future of mobile power solutions, offering enhanced convenience and safety
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    The components used to build a mobile phone charger circuit are described, including a USB cable to deliver power, a 7805 voltage regulator integrated circuit to regulate the input voltage to 5V, and a 9V battery to provide power





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