Wireless charging

Vishwajeet Singh 16BCL0257 Keshav 16BCL0251

Team

What is wireless charging? Types of wireless charging Design overview Applications Advantages of wireless charging Limitations Conclusion

Contents

Wireless charging is one of several methods of charging batteries without the use of cable or device specific AC adaptors.

Wireless charging can be used for a wide variety of devices including cell phones, laptops, computers etc.

What is Wireless charging?

There are three types of wireless charging:- Resonance charging

Inductive charging

Radio charging

Methods of Charging

It uses the phenomenon of “RESONANCE” , that causes object to vibrate when energy of certain frequency is applied.

Two copper coils are used one attached to transmitter and other to receiver.

Both coils are tuned to same electromagnetic frequency.

These coils are placed close to one another. Examples:- electric cars, Robots etc.

Resonance Charging

Inductive charging is one kind of short distance wireless charging.

This method works on the principle of “ELECTROMAGNETIC INDUCTION” where a E.M field is created with alternate polarity using an insulated copper coil and a similar coil.

Examples:- MP3 players, electric toothbrush.

Inductive Charging

Mechanism

A transmitter plugged in to a socket, generates radio waves, when the receiver attached to the device is set to the same frequency as the device is set to the same frequency as the transmitter, it will charge the device’s battery.

Examples:- watches, medical implant.

Radio Charging

The basic design mainly consists of three sole parts:- Transmitter:- A power transmitter acts a

power source. It transmits signals are mainly Microwave region.

Antennas:- It plays the role of mediator between transmitter and receiver.

Receiver:- The receiver’s main purpose is to charge an AAA battery.

Design overview

Wireless charging Pad and Electric cars.

Application

Provides consumers with freedom and convenience.

Simple ways of technology. Simultaneous charging of multiple devices. The plastic, packaging and electronic waste

associated with charges is greatly reduced.

Benefits

Applicable for only small distance. For the large devices like electric car,

charging stations may be limited.

Limitations

Research in to using wireless technology to supply to terminal is finally beginning to be realized.

The technology provides a wide range portability, low cost and best of all.

Charging will one day become a matter of dropping devices to the nearest charging pad.

Conclusion

Thank you