so….what’s all this wireless power transfer stuff … inductive phone charge pad 6 • phone...
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So….What’s All This Wireless Power Transfer Stuff About Anyway??
IEEE HOLM Conference
John Yurtin
10/14/2014
Two Main Automotive Applications
Phone and Tablet
Charging
5-15 Watts
Hybrid/Electric Vehicle
Charging
4 Kilowatts
Typical Inductive Phone Charge Pad
6
• 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
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
10
Wireless Vehicle Charging
•Home Garage
•Parking Lots
•Charging Stations
•Safe, Passive and Convenient
Wireless Device Charging Systems
Charging solutions to keep you, your vehicle
systems and the world connected
Connectivity It’s More Than Just Charging
Device Wireless Transmission & Charging
12:30 lunch
01:00 Meeting
06:20 Pick up Jenni
24
Hello! Bob
14
NFC / Bluetooth
Communications
Antenna Amplification
Smart Key Capability
Driver Recognition
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.
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
Typical Automotive Wireless Charge Unit
17
• 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
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)
19
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
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
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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