Wireless charging is growing and increasingly adopted by consumers, offices and venues. This presentation describes the current state of wireless charging technology and what is coming for the future.

1. STATE OF WIRELESS
CHARGING
TECHNOLOGY
www.chargespot.com

2. INDUCTIVE CHARGING
• Uses principles of
electromagnetic induction - using
an electromagnetic field to
transmit power
• Close range charging
• Existing use in variety of settings,
including electric toothbrushes

3. INDUCTIVE CHARGING
• High efficiency - up to 90% of
wired solutions
• Technology is established and
safe, applicable to many settings
• Being built into many devices
• Supports large range of power
needs
PROS

4. INDUCTIVE CHARGING
• Close range - distance limitation
• Transmitter and receiver needs to
be accurately placed
• Limited places for installation
CONS

5. RESONANCE
• Also uses electromagnetic
induction principles
• Mid-range energy transmission
• In development and expected to
be commercially available in 2016

6. RESONANCE
• Mid-range, allowing for more
freedom of device placement
away from transmitter
• Technology is well-understood
and safe
• Can be installed in more areas
PROS

7. RESONANCE
• Reduced efficiency
• Lower range of energy transfer
capabilities
CONS

8. LONG RANGE
• Technology in development
• Various technologies - ultrasound,
infrared light, RF
• “Holy Grail” of wireless charging

9. LONG RANGE
• Able to charge devices from
significant distance - allowing full
mobility
• Can be installed anywhere in a
space
PROS

10. LONG RANGE
• Very low efficiency and range of
energy transfer capabilities
• Untested technologies - will
require safety testing and
approvals
CONS

12. SUMMARY
Close Range Mid Range Long Range
Base Technology Inductive Resonance RF / Other
Market
Readiness
Today 2016 ??
Power Transfer 5-3000w 5-50w 5w
Efficiency High Medium Very Low to Low

13. www.chargespot.com
WIRELESS CHARGING
FOR OFFICES AND VENUES
FULL ARTICLE:
http://www.chargespot.com/news/2015/03/state-of-
wireless-charging-the-present-and-the-future/