This document describes a wireless mobile phone charging system developed by Malay Niraj. The system uses electromagnetic induction to transfer power from a charging pad to a receiver in the mobile phone adapter without needing a physical connection. It utilizes a high frequency transformer, inductors, rectifiers, capacitors, transistors, diodes, and voltage regulators to convert AC mains power to 12V DC, transfer it wirelessly via induction coils, and convert it to 5V DC to charge a mobile phone. The wireless charging system aims to eliminate the need for different chargers by manufacturer and allow for more convenient, automatic, and cordless charging of mobile phones.

1. MALAY NIRAJ
ROLL NO. 1307438
B.TECH (EE)7Th

2.  This system demonstrates the concept of wireless
Mobile charging system . The system allows user to
wirelessly charge his mobile phone without plugging
in the mobile adopter .

3.  H F Transformer
 2 Inductor coils
 Rectifier
 Capacitors

4.  Transistors
 H F Diodes
 Voltage regulator
 USB Connector
 LED’S

5.  It works on the principle of Electromagnetic
Induction.

6.  We demonstrate the system using a charging pad where
user just needs to place his adopter circuit . to charge the
mobile phone.
 For the purpose we utilize the advanced power transfer
concept.
 For this purpose we use a high frequency transformer to
convert mains input AC to 12V DC.
 The power is transferred wirelessly to the receiving coil and
this 12v DC is provided to the adapter circuit which is used
to convert this 12v DC to5V Dc which is then supplied to
the mobile phone.

11.  To make the recharging of the mobile phones
independent of their manufacturer and battery make.
 A new proposal has been made so as to make the
recharging of the mobile phones is done automatically
as you talk in your mobile phone.

12.  The need of different types of chargers by different
manufacturers is totally eliminated
 Lower risk of ELECTRICAL SHOCK or shorting.
 Convenience
 Wireless energy transfer can potentially recharge the mobile
phones without chords.

13.  The transmitter and receiver also should be very powerful
devices as the distance increases.
 Slower Charging.
 More costly.
 Practical possibilities are not yet applicable as there is no much
advancement in this field.

21.  A novel method of using the power of the microwave to charge
the mobile phones without the use of wired chargers.
 This method provides great advantage to the mobile phone
users to carry their phones anywhere even if the place is devoid
of facilities for charging.

22. THANKU