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NOT FOR PHONES
Qualcomm WiTricity
Still not ready Cannot charge through a metal case
Magnetic Induction (WPC/Qi or PMA)
IDT
• None
Feature Rich implementation
© Copyright 2016, IDT Inc.
8
A4WP Efficiency (initial non-optimized)
© Copyright 2016, IDT Inc.
9
IDT Leadership - Market
Recent Press Releases
“IDT Celebrates Leadership Position in Wireless Power with 70 Million Units Shipped”
7
Wireless Charging through Metal Cases
Problem:
• Transferring power inductively through metal incurs significant eddy current losses.
Experimental Results:
Gen3 M0 0.18 BCD
1W – 15W Qi / PMA / A4WP • 5W/15W Automotive • 15W Qi
IDT is on it’s 3rd generation of wireless power products We have shipped over 100M units and estimate our market share at ~70%
“IDT Wireless Charging Technology Featured in LG’s New Flagship G4 Smartphone” “Galaxy S7 Equips IDT Technology as part of Wireless Fast Charge” “Belkin Selects IDT Dual Mode Wireless Power Transmitter” “IKEA Furniture Features IDT Wireless Charging” “IDT Makes Wireless Power Accessible to the Mass Market” “IDT Accelerates Adoption of Wireless Power in Ultra-Compact, Low-Power Applications”
Patents • 45 Patents filed • Access to >100 core patents under license agreements
© Copyright 2016, IDT Inc.
Standards Essential IP from IDT • Backchannel communication • In-band communication • Foreign-object-detection
© Copyright 2016, IDT Inc.
6
A4WP Industry Status
• No Smartphone commercial deployment • Some major players are withdrawing from active involvement in the Airfuel Alliance • No integrated PTU solutions currently available • PTU interoperability issues • Technical Issues
11
System Architectures (MI & MR)
• Micro controller based
• Flexible Memory Structure • Inter processor Communication • Bi-directional Communication • Full control over Hardware co-processing • API availability • Highest level of Integration
© Copyright 2016, IDT Inc.
4
A brief note on Wireless Power Conveyance
Conveyance 2017 Viability* Champions
• • • • •
Blocking Issues
Ƞ < 2% Part 18 FCC license Tx Economics SAR / Safety EMI / Spectrum Pollution • Non-anechoic environments
Gen1 HC11 0.25 BCD
1W - 5W Qi / PMA / Non-Standard • LG • Kyocera • Ikea
Gen2 FSM 0.18 BCD
1W - 5W Qi / PMA / Non-Standard • Blackberry • Vizio • Asustek
© Copyright 2016, IDT Inc.
Standard Update
© Copyright 2016, IDT Inc.
Wireless Power Standards
• • • • Focus on MI solutions: 87-205kHz Z-distance < 5mm Market adoption leadership Latest Specification 1.2.2 • Baseline Power Profile 5W • Extended Power Profile 15W Established Qi Certification Program ~235 members range from network providers to IC developers • • • • • • • AirFuel Alliance merge Dec 2015: A4WP–MR 6.78MHz – Z-distance 35mm PMA – MI Presently, no significant MR infrastructure in place Latest A4WP spec 1.3 Global certification program ~150 members including Intel and Qualcomm
10
© Copyright 2016, IDT Inc.
IDT Leadership - Innovation
IDT’s SoC based Wireless Charging architecture is unique in the industry: Maximum Flexibility Best Performance Fast Time to Market
Wireless Power Products and Roadmap
July 2016
© Copyright 2016, IDT Inc.
1
Content
• • • • • Standard update IDT Leadership in Wireless Power IDT Unique/Critical Features Product Portfolio and Roadmaps Mass Market EVK Program and Roadmap
RX
Proprietary Bi-Directional Communication
© Copyright 2016, IDT Inc.
Editorial Comment
µWaveFra Baidu bibliotek
Energous Ossia
NOT VIABLE
RCC (Resonant Capacitive Charging) Magnetic Resonance (Airfuel/A4WP)
Murata
• Solution Area • Industrial Design • • • • EMI Tx Economics Rx ƞ NFC circuitry coexistence
© Copyright 2016, IDT Inc.
Key IP: Transmitters
Rapid Charging Low EMI Drivers WPC/PMA Compliant* USB 2.0 Clock Synthesizer Current Sensing Scheme Modulation / Demodulation ADC Embedded Micro Controller RAM OTP/MTP OTP, UVLO OCP, OVP Buck Converter Advanced Multi-layer FOD GPIO I2 C
Practical Implications:
• It is not practical to charge through a metal case delivering adequate power.
These non-metallic areas can be widened and used to house a receiving coil to effect entry of magnetic flux and thus produce induced voltage and power transfer.
• •
• WPC 1.2.2 spec issues have delayed release – certification has resumed • Airfuel Alliance organizational and adoption issues • Umbrella for Uncoupled technologies may be causing more confusion • Smartphone/other suppliers looking to add their own fast charge IP
© Copyright 2016, IDT Inc.
© 2016, IDT
Why not to worry about the competing Standards:
– IDT current ICs are dual Mode: Qi/PMA – IDT’s new IC available in July is Tri-Mode: Qi/PMA/Airfuel(A4WP) – IDT’s ICs are all capable of any Qi based proprietary mode through simple firmware configuration up to 1 MHz.
• • With enlarged gaps (see below) a small amount of power can be transferred wirelessly via an MR (magnetic resonance) scheme. ~2W at ~40% efficiency can be achieved. The Industrial Design is compromised.
• EMI • NFC reliability • Rx Desense during charging • Dead Battery BLE startup • Efficiency < 60% (vs. >80%+ for MI)
PTU: Power transfer unit
© Copyright 2016, IDT Inc.
