Wireless charging for mobile phone

Wireless Charging for

Mobile Phones

By

APS

1

Introduction

Wireless Charging is a technique of

transmitting power through an air gap to

electrical device for the purpose of energy

replenishment.

2

Benefits of Wireless Charging

Reduced cost

Improved user friendliness

Better product durability with contact free

devices (E.g. Waterproof & Dustproof )

Different brands & model can use same

charger

On-demand power supply (avoid over-charging, minimized energy costs)

Enhanced flexibility ( E.g. use of device such as body implanted sensors)

3

Techniques use for Wireless

Charging

Inductive Coupling (Qi Standard)

◦ Smartphone, tablets, Bluetooth headsets,

cameras and portable power packs

Resonance Coupling (A4WP Standard)

◦ Electric cars, Robots, Vacuum Cleaners,

Laptop computers & other items that

require large amounts of power

Microwave radiation

4

Induction Coupling

5

Resonance Coupling

6

Microwave Radiation

7

8

Use of Microwave Radiation

9

Simultaneous Wireless Information and Power Transfer

( SWIPT)

THANKYOU

10

A4WP

Qi

11