This document discusses wireless charging technologies, including inductive charging, resonance charging, and radio charging. It provides details on how each works, such as using electromagnetic induction or radio waves to transmit power over short distances without wires. Applications are mentioned, like charging phones, electric cars, and other devices. Advantages include convenience and reducing electronic waste, while disadvantages are inefficiency over longer distances.

1. WIRELESS
CHARGING
WIRELESS TECHNOLOGY
ASHWIN.V.N

2. CONTENTS
 WHAT IS WIRELESS CHARGING?
 WORKING.
 TYPES OF CHARGING.
 APPLICATION.
 ADVANTAGES.
 DISADVANTAGES.
 SOURCE

3. WHAT IS WIRELESS
CHARGING?
 IT IS ONE OF THE METHOD USED TO
CHARGE THE BATTERIES WITHOUT
CABLES OR ADAPTORS.
 THESE ARE USED IN WIDE RANGE OF
DEVICES SUCH AS CELL PHONES
,LAPTOPS , COMPUTERS , MP3 PLAYERS ,
AND OTHER LARGER DEVICES SUCH AS
ROBOTS , ELECTRIC CARS ETC.....

4. WORKING
 THE MAIN COMPONENTS ARE :
 TRANSMITTER.
 ANTENNA .
 RECIEVER.

5. BLOCK DIAGRAM OF WIRELESS TRANSMISSION

6. TYPES OF WIRELESS
CHARGING
 RESONANCE CHARGING.
 INDUCTIVE CHARGING.
 RADIO CHARGING.

7. RESOSNANCE CHARGING
 IT USES THE PHENOMENON OF RESONANCE
WHICH CAUSES THE OBJECT TO VIBRATE
WHEN ENERGY OF CERTAIN FREQUENCY IS
APPLIED.
 TWO COPPER WIRES ARE USED TO
TRANSMIT ONE AT THE TRANSMITTER AND
ONE AT THE RECEIVER.
 WHEN THESE COILS ARE PLACED CLOSE TO
ONE ANOTHER POWER IS TRANSFERRED
 EX: CARS,ROBOTS,VACCUM
CLEANERS,LAPTOP AND OTHER DEVICES
WHICH REQUIRE MORE POWER…

8. RESONANCE CHARGING IN
ELECTRIC CARS

9. INDUCTIVE CHARGING
 IT IS A KIND OF SHORT DISTANCE WIRELESS
CHARGING IT USES THE CONCEPT OF
ELCTROMAGNETIC INDUCTION .
 WHERE THE CHARGER AND THE DEVICE WILL BE
HAVING AN INSULATED COPPER WIRE ONE AT THE
DEVICE AND ANOTHER AT THE CHARGER.
 THE CHARGER CREATES ELECTROMAGNETIC
WAVES USING COIL AND THIS WAVE IS SENT TO
THE COIL OF THE PHONE OR DEVICE AND
CONVERTS TO ELECTRICITY AND HENCE
CHARGES THE BATTERY.
 EX:MP3 PLAYERS , ELECTRIC TOOTHBRUSH,
TRIMMERS ETC….

10. INDUCTIVE CHARGING IN
PHONE

11. RADIO CHARGING
 IT USES RADIO WAVES.
 A TRANSMITTER PLUGGED TO SOCKET
GENERATES RADIO WAVES AND
RECIEVER IS ATTACHED TO THE DEVICE
WITH SAME FREQUENCY AND THE
BATTERY STARTS TO CHARGE.
 EX:WATCHES , HEARING AIDS, WIRELESS
KEYBOARDS AND MOUSE….

12. ADVANTAGES
 PROVIDE CONVENIENCE TO
CONSUMERS.
 EASY TO MAINTAIN.
 CHARGING OF MULTIPLE DEVICE AT A
TIME.
 AS IT IS WIRELESS IT IS ECONOMIC .
 BETTER PORTABILITY.
 ELECTRONIC WASTES WILL BE REDUCED
COMPARED TO WIRELESS .

13. DISADVANTAGE
 APPLICABLE ONLY FOR SMALL
DISTANCES.
 IT IS LESS EFFICIENT.
 MORE POWER LOSS.
 FOR LARGER DEVICES SUCH AS CARS
,STATIONS MAY BE LIMITED.

14. SOURCE : GOOGLE.