1. Wireless Power Transmission

2. Introduction
Wireless Power Transmission is the transmission of
electrical energy from a power source to an electrical
load without interconnecting wires
Wireless transmission is useful in cases where
interconnecting wires are:
 inconvinient
hazardous
impossible

4. Advantages:
Conventional charging mode requires replacing the
relevant adaptor and placing the adaptor in a fixed
charging position
Resistant to contaminants, corrosion and sparks
Elimination of clumsy interconnections.
 Minimum interference in devices nearby .
Minimize wastes from the plastic or paper packaging.

5. Electromagnetic
induction
Radio reception resonance
Output power several W to
hundred kW
several dozen mW max power of
several KW
Effective distance probably 1cm or
less
range of several
meters
range of several
meters
Control level Simple to make and
control
Hard to make but
under control
Hard to make and
control
Safety level Depends on the conditions and technical approach
Convinience Acceptable Level Highest Fairly
COMPARISON:

6. Efficiency:
Efficiency versus transmitting range of the various technologies.
Efficiency describes how much power is wasted and how much heat is
dissipated during power transmission.

7. Cost:
One of the most important criteria when comparing
wireless power systems is whether they make commercial
sense.
COST

8. BLOCK DIAGRAM

9. CIRCUIT DIAGRAM

10. Consumer Electronics:
 charging of mobile electronics
 wireless powering of stationary devices
Industrial:
 charging for mobile robots, automatic guided vehicles, cordless
tools and instruments
 power for wireless sensors and actuators
 interconnections at points of use in harsh environments
APPLICATIONS:

11. Other Applications:
charging for implantable medical devices
charging for high tech military systems
charging of smart cards.
 charging of consumer appliances, mobile robots, etc.

12. FUTURE ASPECTS:
• To improve the efficiency and the range of working.
• Ensure security of the system by minimizing the risk of
being used by unauthorized person.
• Have a feedback system that stops the device from being
over charged.

13. The End…….
Thank you for your patience