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WIRELESS CHARGER
PRESENTED BY
K.BHARATH
14471A0474
Wireless charger
CONTENTS
 -> what is wireless charger ?
 -> types of charging
 -> design overview
 -> applications
 -> limitations
 -> conclusion
WHAT IS WIRELESS CHARGER ?
 Wireless charging is one of the several methods of
charging batteries without the use of cable or
device specific AC adaptors
 Wireless chargers can be used for a wide variety of
device including cell phones laptop computer and
mp3 players as well as larger objects such as
robots and electric cars.
METHODS OF CHARGING
 There are three types of wireless charging:-
 Resonance Charging
 Inductive Charger
 Radio Charger
RESONANCE CHARGING
 It uses phenomenon of “resonance”,that causes an
object to vibrate when energy of certain frequency
is applied.
 Two copper wires are used to attached to
transmitter & receiver.
 Both coils are tuned to same electromagnetic
frequency.
 These coils when placed close to each other power
is transferred.
INDUCTIVE CHARGING
 Inductive charging is one of short distance wireless
charging.
 This method works on the principle of “Electromagnetic
Induction” where the charger device will create an E.M
field with alternating polarity using a coil of insulated
copper wire & a similar coil will be placed inside the
mobile device which will convert E.M field back to
electric current there by charging the battery.
Wireless charger
RADIO CHARGER
 This method is on the basis that radio waves are
widely in use to transmit and receive cellular
television.
 A Radio wave once transmitted, propagates in all
directions until it reaches an antenna tuned to
proper frequency.
 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
transmitter,it will charge the device’s battery.
Wireless charger
DESIGN OVERVIEW
The basic design mainly consists of three sole
parts:
 Transmitter
 Antenna
 Receiver
APPLICATIONS
 Mobile charging
 In-Vehicle charging
 Radio charging
 Ultra wideband
BENEFITS
 Provides consumer with freedom and convenience.
 The way the technology works is simple.
 Simultaneous charging of multiple devices.
 The plastic packaging & electronic waste
associated with charges is greatly reduced.
 Since it is wireless it is economic
LIMITATIONS
 Applicable for only small area
 For lager devices like electric cars charging stations
may be limited
 Efficiency and power loss are major problems
CONCLUSION
 Research in to using of wireless technology to
supply to terminals is finally beginning to be
realized. The technology provides a wide range of
other obvious benefits, including better portability,
lower cost and best of all the end of having to
guess which charger go what gadgets.
THANK YOU

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Wireless charger

  • 3. CONTENTS  -> what is wireless charger ?  -> types of charging  -> design overview  -> applications  -> limitations  -> conclusion
  • 4. WHAT IS WIRELESS CHARGER ?  Wireless charging is one of the several methods of charging batteries without the use of cable or device specific AC adaptors  Wireless chargers can be used for a wide variety of device including cell phones laptop computer and mp3 players as well as larger objects such as robots and electric cars.
  • 5. METHODS OF CHARGING  There are three types of wireless charging:-  Resonance Charging  Inductive Charger  Radio Charger
  • 6. RESONANCE CHARGING  It uses phenomenon of “resonance”,that causes an object to vibrate when energy of certain frequency is applied.  Two copper wires are used to attached to transmitter & receiver.  Both coils are tuned to same electromagnetic frequency.  These coils when placed close to each other power is transferred.
  • 7. INDUCTIVE CHARGING  Inductive charging is one of short distance wireless charging.  This method works on the principle of “Electromagnetic Induction” where the charger device will create an E.M field with alternating polarity using a coil of insulated copper wire & a similar coil will be placed inside the mobile device which will convert E.M field back to electric current there by charging the battery.
  • 9. RADIO CHARGER  This method is on the basis that radio waves are widely in use to transmit and receive cellular television.  A Radio wave once transmitted, propagates in all directions until it reaches an antenna tuned to proper frequency.  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 transmitter,it will charge the device’s battery.
  • 11. DESIGN OVERVIEW The basic design mainly consists of three sole parts:  Transmitter  Antenna  Receiver
  • 12. APPLICATIONS  Mobile charging  In-Vehicle charging  Radio charging  Ultra wideband
  • 13. BENEFITS  Provides consumer with freedom and convenience.  The way the technology works is simple.  Simultaneous charging of multiple devices.  The plastic packaging & electronic waste associated with charges is greatly reduced.  Since it is wireless it is economic
  • 14. LIMITATIONS  Applicable for only small area  For lager devices like electric cars charging stations may be limited  Efficiency and power loss are major problems
  • 15. CONCLUSION  Research in to using of wireless technology to supply to terminals is finally beginning to be realized. The technology provides a wide range of other obvious benefits, including better portability, lower cost and best of all the end of having to guess which charger go what gadgets.