This document discusses wireless charging, which uses electromagnetic induction to charge batteries in devices without cables or adapters. It works by using coils in a transmitter base to create a magnetic field that induces a current in a nearby receiver coil, charging the battery. The three main components are the transmitter, rectenna, and receiver. There are three main types of wireless charging: resonance charging, inductive charging, and radio charging. Wireless charging offers advantages like eliminating cables, lower electricity use, and safer medical devices, but also has disadvantages like lower efficiency, higher costs, and slower charging. The conclusion is that wireless charging technology is becoming more widely used and will make charging simpler by dropping devices on charging pads.
3. Introduction
• Wireless Charging is a method of charging batteries without the
use of cable or device specific AC Adaptors.
• With a wireless charger, the battery inside any battery-powered
appliance can be charged by simply placing the appliance close to
a wireless power transmitter.
4. Working Principle
• Wireless Charging works on the
principle of Electromagnetic
Induction. Coils of wire in the base
station create a magnetic field as
the current passes through .This field
induces an electric current in an
adjacent coil of wire without
actually touching it.
12. CONCLUSION
• Research into using wireless technology to supply
terminlas is finally being realized.
• The technology provides wide range of other
obvious benefits, lower cost and best of all the
end of having to guess which charger to go with
what gadgets.
• Charging one day will become a simple matter of
dropping devices into the nearest charging pad.
