So….What’s All This Wireless Power Transfer Stuff About...
Transcript of So….What’s All This Wireless Power Transfer Stuff About...
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So….What’s All This Wireless Power Transfer Stuff About Anyway??
IEEE HOLM Conference
John Yurtin
10/14/2014
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History of Wireless Power
Nicola Tesla
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Cordless Toothbrush
Common Commercial
Application of Wireless Power
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Two Main Automotive Applications
Phone and Tablet
Charging
5-15 Watts
Hybrid/Electric Vehicle
Charging
4 Kilowatts
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Inductive and Resonant Technology
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Typical Inductive Phone Charge Pad
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• Phone must be placed directly on the pad
• Orientation is critical to charging
• Phone must have a capture coil (embedded, or as a sleeve)
• 5W at 50% efficiency
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Resonant Technology
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Repeater coils
8
Powered Source Coil Capture Coil Non-Powered Repeater Coils
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Demonstration
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Wireless Power Transfer Basic System
Matching
Network
Matching
Network So
urc
e
Rece
ive
r
Source
Drive
Control and
Communication
LIN/CAN
Input Power
Conditioning
Rectification
V
E
H
I
C
L
E
Voltage
Conditioning
D
E
V
I
C
E
L
O
A
D
Control
Communication
POWER
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Wireless Vehicle Charging
•Home Garage
•Parking Lots
•Charging Stations
•Safe, Passive and Convenient
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Wireless Vehicle Charging
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Wireless Device Charging Systems
Charging solutions to keep you, your vehicle
systems and the world connected
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Connectivity It’s More Than Just Charging
Device Wireless Transmission & Charging
12:30 lunch
01:00 Meeting
06:20 Pick up Jenni
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Hello! Bob
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NFC / Bluetooth
Communications
Antenna Amplification
Smart Key Capability
Driver Recognition
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Wireless Charging Commercial Situation
•Multiple Competing Technologies
• Inductive (Qi and Powermat)
• Magnetic Resonant (WiTricity, Q+, and A4WP)
•Multiple Standards
• A4WP “Alliance for Wireless Power” (resonant),
• PMA “Power Matters Alliance” (Inductive),
• WPC “Wireless Power Consortium” (inductive Qi and Qi+)
•Significant Posturing Within Each Organization.
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Competing Standards
Organization Logo Delphi
Participation
Member
Companies
Wireless Power
Consortium (WPC)
Steering
Committee
Member
209
Power Matters
Alliance (PMA) Member 70+
Alliance for
Wireless Power
(A4WP)
Full
Membership 100+
Consumer
Electronics
Association (CEA)
Member 160
“ Wide scale adoption of Wireless Power will clearly require a common or
compatible standard”
16 1 On Wireless Power Committee
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Typical Automotive Wireless Charge Unit
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• Single, Dual or Tri-Mode Operation
5 - Watt power delivered to receiver
Typically 50% Transfer Efficiency
Foreign Object Detection
• CAN/LIN Bus Support
• Optional NFC Peer-to-Peer (P2P) support
• Capacitive sensing for low power standby
• 9 – 16VDC Operational Voltage
• Power Transfer Indication Output
• Meet Automotive EMC/EMI requirements
• Antenna Coupling
• NFC/Bluetooth Communications
• Custom Packaging
Providing Safe, Passive & Convenient Charging
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So… …Where is all this heading?
Standards Organizations
WPC
WPC
A4WP PMA
Dual Mode
A4WP
Tri-Mode
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Wireless Phone Charging Market
• Top Smartphones with Wireless Charging Capability Over 43 phones available with wireless charging capability
All Use Inductive Technology (WPC-Qi, Powermat)
Worldwide shipments of smart phones will double from 712 million in 2012 to 1.5 billion in
2017.
HTC Droid
Google Nexus 7
(T Mobile / Qi)
HTC Windows
Phone 8X (Verizon)
Nokia Lumina 920
(AT&T)
LG Spectrum 2
(Verizon)
Nokia Lumina 810
(T-Mobile)
Samsung Galaxy
S3/S4
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
45,000
50,000
2016 2017 2018 2019 2020 2021 2022 2023 2024
Market Trend (MM Units)
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The Wireless Cabin Vision
iPad
Mp3 Player
Cell Phone Mirror
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So…is this technology safe?
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So…is this technology safe?
• No adverse health risks to body
• No adverse affect on embedded devices
• Minimal energy transfer to “off resonant” devices
• “Non-radiative” electromagnetic field
• Meets international safety guidelines for human
exposure
• Actually in development for implanted medical
devices
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Any affect on people??
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So…is this technology safe?
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Wireless Interior Future Concept
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They're already here….
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So… ….How might this technology change connectors?
“Looks like we may need to change our technical knowledge!”
• Eliminate Contact Resistance
• Eliminate terminal mating
forces
• No Plating or Materials
concerns
• No fretting issues
• No arc faults
• No Lubricants
• No contact erosion
• No contact wear
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In Conclusion
• Wireless Power applications are increasing
• What was not practical in the past is being done
today
• What is not practical today will be practical in the
future
• Technology will open up new potential applications
• Our scope of technology of connections will expand
• Don’t hold your breath…..It will take time
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Thank You!
John Yurtin
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