wireless power solution
TRANSCRIPT
Company Public – NXP, the NXP logo, and NXP secure connections for a smarter world are trademarks of NXP
B.V. All other product or service names are the property of their respective owners. © 2018 NXP B.V.
Product Manager
Vaclav Halbich
Wireless Power Solution
October 2018 | AMF-AUT-T2966
COMPANY PUBLIC 1COMPANY PUBLIC 1
• Wireless Power Transfer
• Market Update
• NXP Focus
• 5-15W Solutions
• 65W Consumer Solution
• Industrial Solution
• Wireless Powre and NFC
• Wireless Power SW
• WPC Status
Agenda
COMPANY PUBLIC 2
WIRELESS POWER
TRANSFER METHODS
COMPANY PUBLIC 3
ULTRASOUND
Almost 0% efficiency
Not usable in real
environment
COMPANY PUBLIC 4
CAPACITIVE COUPLING
Extremely high voltageneeded for 5W powertransfer
High voltage transformerdoesn’t fit to mobile
Not usable in realenvironment
COMPANY PUBLIC 5
RF WIRELESS POWER
Long distance
Small efficiency
Dangerous – very strongfield for 1W+ devices
Usable for mWpower range
Not suitable for autoenvironment
COMPANY PUBLIC 6
INDUCTIVE COUPLING – WINNER
Safe – closed field between TX and RX
High efficiency 60 – 94%
Big power range 1W – 20kW
Proven all environmentsoperation
Resonant principle – special case of inductive coupling
COMPANY PUBLIC 7
Wireless Power Converges on Qi standard
Competing standards stall industry adoption
Automakers launch Qi based transmitters
Samsung and Apple launch Qi based phones
PowerMat (strongest support of PMA) joins Wireless Power Consortium to support Qi
No traction for A4WP Before 2016
2017
NOW
Qi*
Inductive coupling supporting
80 – 200kHz frequency and power
levels from 2 – 2000W
*NFC direct charging complimentary to Qi for <2W
COMPANY PUBLIC 8
COMPANY PUBLIC 9
Wireless Power Market Growing into Different Applications
Growing (5-15W)• Smart Phone Receivers
• Smart Phone Transmitters
• In-vehicle Charging
0
500
1000
1500
2000
2500
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Market Applications (MUnits)
Rx (mobile) Rx (PC) Tx (auto) Tx (consumer)
Ramping (30-90W)• Consumer Charging Mats
• Portable Speakers
• Portable computing notebooks, tablets, etc.
Longer-term (200-2000W)• Kitchen Appliances
• Power Tools
Growing (<2W)• Hearables
• Wearables
• Health care and beauty aid
COMPANY PUBLIC 10
QI HOW IT WORKS
COMPANY PUBLIC 11
QI – HOW IT WORKS
Transmitter Receiver
RX
syste
m
DC
pow
er
PowerPower conversion Power pick-up
ControlControl CommComm Packets
Transmitter
- Providing desired power
- According to control error message
- Adapt power by PID regulator
- Desired control point (power)
- Actual control point (power)
Receiver
- Controlling power level
- Sending control error message
- Calculate control error
- Desired control point (power)
- Actual control point (power)
COMPANY PUBLIC 12
QI – 5-15W COMUNICATION
In-band communication
AM modulation for RX to TX comm
FM modulation for TX to RX comm
Message – 3 .. 30 Byte
Speed – 2 Kbps
1 0 1 0 1 1 0 0
500us
b0 b1 b2 b3 b4 b5 b6 b7
Sta
rt
Sto
p
Pa
rity
Preamble Header Message Checksum
COMPANY PUBLIC 13
QI – POWER TRANSFER INITIALISATION
Ping
• TX waiting for the SS packet
• Proper coil selection
Identification, configuration
• RX and TX recognition
• Request for negotiation if needed
Negotiation
• Special power level request negotiation
Power transfer
• Regular reception of control and power packets
COMPANY PUBLIC 14
QI – POWER CONTROL METHODS
Frequency control - Bad EMC
- Fixed voltage, duty cycle
- Most common in consumer designs
Duty cycle control- Bad EMC
- Fixed voltage, frequency
Rail voltage control- Good EMC
- Fixed duty cycle, frequency
- Automotive design
50kHz 200kHz
COMPANY PUBLIC 15
NXP FOCUS
COMPANY PUBLIC 16
CUTTING THE LAST CORDNXP VISION FOR A WIRELESS FUTURE
Broad power level support, from <1W to 200W:Covering wearables, to PC peripherals, to smart phones, to tablets, 2-in-1s and notebooks
True power source operation where it matters
Multiple device charging, across power levels:Charge smart phone while charging notebook
Single infrastructure investment supports range of devices
Broad spatial freedom in all directions:Modular transmitter coil arrays to scale spatial freedom
Enhanced safety and security:In application payment and ID card / tag protection
Anticounterfeit and OEM specific authentication
WPC Qi alignment:Power delivery, communications and safety
COMPANY PUBLIC 17
NXP WIRELESS POWER INNOVATIONDriving WPC Specifications• Steering Group Member
• Co-Chair – Specification Working Group
• Co-Chair – Medium Power Working Group – leading 65W specification
• Co-Chair – RFID Task Force
• Co-Chair – Communication Task Force
• Driving / Proposal Submission – Kitchen Working Group, Authentication Task Force, NFC Detection Task Force
• Largest span of end customer certified Qi transmitters
• Multiple transmitter types submitted to specification (adopted broadly in market by various suppliers)
Investing in Innovation• Internal development and test labs
• NXP TX and RX solutions are golden units in WPC specification
Defacto Supplier for Customers with most Advanced Requirements• Automotive in-vehicle – over 75% of the market
• Extreme Accuracy Precise Frequency Control
• Ultra High Efficiency 65W for portable PCs
• Payment Card / RFID Tag Detection
COMPANY PUBLIC 18
NXP WIRELESS POWER SOLUTIONSLEADING THE WAY TO A WIRELESS FUTURE
• Full Qi certified reference design
• Optimized BOMHardware
• Professional grade Qi certified library
• Customizable application / clean APISoftware
• Application Expertise
• On-site support up to productionSupport
• WPC consortium co-chair
• Up to date specification certificationsCertification
• Most comprehensive portfolio
of Qi certified transmitter and
receiver solutions in industry
• Most flexible solutions for
wide range of end
applications
• Fastest time to market
COMPANY PUBLIC 19
200W
15W
5W
1W
TX RX
WIRELESS POWER SOLUTIONS PORTFOLIO
WCT-5W1COILTX5W Qi A11 Flexible
WCT-5WTXMULTI5W Qi A28, 5W PMA
WCT-15WM2D1W15W Qi, Multidevice
WCT-15WTXAUTOS
15W Qi, Autosar
Production
Proposal
Planning
Execution
WPR1500-BUCK5-15W Qi
WCT-65WINDUSTRIAL30W - 200W
WPR-65WRX30W – 200W
WCT-5WTXAUTO5W Qi A13, 5W PMA
WCT-15W1COILTX15W Qi, 5W PMA
NXQ1TXH55W Qi A11 Integrated
WCT-15WTXAUTO15W Qi, 5W PMA
Single-Coil Tx
Multi-Coil Tx
Single-Coil Rx
Industrial/Auto
WPR1500-LDO5-15W Qi
NFC TX NFC RX
WCT-15W1CFFPD15W Qi, Fixed Frequency
WCT-65WCONSUMER30W - 200W, 5-15W compatible
Near Field Comm
MPxx15W Qi Analog integration
WPR1500-HV15-20W Qi 5-12V output
COMPANY PUBLIC 20
5-15W CONSUMER SOLUTIONS
COMPANY PUBLIC 21
WCT-15W1FFPD15W iPhone Fast Charge Transmitter
Target Applications
• iPhone Fast Charging (7.5W), Samsung fast charging
Complete and Qi certified hardware and software solution
• Supports iPhone and Samsung Fast Charge, full 15W Qi
• Supports 1-n coils
• (Adding optional NFC card detection and USB PD supply)
Designed for consumer applications
• High accuracy fixed frequency design (EMC control)
• Cost optimized design
Use cases
• Standalone transmitter
• Monitor stand
• Docking station
• All-in-one
• Workstation
COMPANY PUBLIC 22
WIRELESS CHARGING OPTIMIZED FOR iPHONE X, iPHONE
8 PLUS, AND iPHONE 8
Unclutter your space and simplify charging with the BOOST↑UP
Wireless Charging Pad. Belkin worked closely with Apple to
engineer an efficient and high-speed charging pad for iPhone X,
iPhone 8 Plus, and iPhone 8—just lay your phone onto the
charging pad and go. There’s no need to remove your iPhone X,
iPhone 8 Plus, and iPhone 8 from its case when powering up, the
BOOST↑UP Wireless Charging Pad can charge through most
lightweight cases.
Made for: iPhone X, iPhone 8 Plus, and iPhone 8
http://www.belkin.com/us/F7U027-Belkin/p/P-F7U027/
Belkin - BOOST↑UP™ Wireless Charging Pad for iPhone X,
iPhone 8 Plus, iPhone 8
COMPANY PUBLIC 23
RFID Reader
Full-Bride +
FET
2x
PCA9440*
PWM
VinVrail
3.3V
3.3V
Demod
/ Sense
PWM ADC
SPIUARTSCI
SPI
ACMP
NFC
antenna
NFC
Transc.WCT10xx
CAN
Other functions: antenna coupling, LED, User Interface,…
100MHz
32 bit DSC
128KB Flash
32KB RAM
I2CI2C
Temp.
Sensor
ADC
Half-Bridge +
FET
PCA9440*
Digital
Buck Reg
Features
• Delivers full 15W to receiver
• Variable or (customizable) fixed frequency operation
• > 70% power transfer efficiency (low cost coils)
• Extra Accurate Foreign object detection
• Integrated USB PD Stack
• Optional NFC to support card detection
• Single- or Multi-Coil configuration options
• Improved EMI protection to meet various standards
• On-Chip Digital Buck regulator for decreased BoM cost
• Half-bridge driver with integrated current sensor
GPIO
USB PD
PHY
PTN5110
MP-A11 EXAMPLE TRANSMITTER BLOCK DIAGRAM
COMPANY PUBLIC 24
Features
• 25V Input Voltage Rating
• 15mΩ Low RDSON for Better Thermal Performance and Efficiency
• Up to 5A Output Continuous Current
• Fully Integrated Dual-Switch
• Independently Controlled High-side and Low-side Gate Signal
• Estimated > 80% PCB Area Saving Comparing to Discrete Solution
MWCT10xx
Vcc
+19V
+5V
+3.3VBuck PWM_H
Buck PWM_L
Buck I_SNSBuck EN
Coil_PWM_HH
Coil_PWM_HL
Coil_PWM_LH
Coil_PWM_LL
+5V
+5V
GND
PCA9440
Vcc
INH
INL
ENSNS
ISENSE
VIN
Vout
LD
GND
HD
Boost
PCA9440
Vcc
INH
INL
ENSNS
ISENSE
VIN
Vout
LD
GND
HD
Boost
PCA9440Vcc
INH
INL
ENSNS
ISENSE
VIN
Vout
LD
GND
HD
Boost
PCA9440
Half-Bridge Gate Driver with Dual Integrated Switches
COMPANY PUBLIC 25
WPR1500-LDO DEVELOPOMENT BOARD
Features
• 15W EPP Qi certified SW
• External rectifier – flexible design, allows optimization and
synchronous rectifier implementation for extremely low
thermals
• Input power (3.5V ~ 20V AC peak) from the transmitter via
the receiver coil – integrated DC/DCs
• Output power up to 15 W
• Programable output voltage 5-12V and charging profiles
• Programable I2C interface
• High accuracy FOD – high precision ADC
• On-chip FSK demodulation
• On-chip overcurrent and overvoltage protections
WPR1516 15W Qi RECEIVERProgramable RX Enabling Optimize Thermal
COMPANY PUBLIC 26
Multi-Device Tx15W Wireless Charging Transmitter SolutionTarget Applications
• Simultaneous multiple Qi device charging
Complete and Qi certified hardware and software solution
• Supports iPhone and Samsung Fast Charge, full 15W Qi
• Charges upto four devices simultaneously
• (Adding NFC card detection and USB PD supply)
Easy to use
• Complete hardware and software solution – charges out of the box!
• Hardware design files
COMPANY PUBLIC 27
5W Integrated Single Coil TransmitterNXQ1TZH5BD1401
Reference Documents
Application Note: AN11775
User Manual: UM10943
Board Layout Files: Click Here
• Integrates A5, A11, A12, & A16 WPC Qi V1.2 analog and
digital functions for 5W System Specification
• No external OpAmp, filter, or biasing circuit needed
• Less than 10 external passive components required
• The NXQ1TXL5 is a lower-power, lower-cost option for <5W
applications that do not require FOD
• Easy FOD Control for coil and caps
• Internal voltage and current measurement circuits
• On-chip analog and digital filters for robust ASK detection
• Low cost 32.768kHz external crystal for low power oscillator
to achieve standby current of 15µA (typical); System
Standby Power of 10mW (typ)
• Operates supply from 3.5V to 5.25V
• Small 5mm x 5mm HVQFN32 package
• Qi Certified− AVAILABLE
COMPANY PUBLIC 28
MP-A4 15W SINGLE COIL TRANSMITTERWCT-15W1COILTXTarget Applications:
• Fast Mobile Charger, Tablet Charger
Features and Enablement:
• Variable frequency (reduced BOM)
• Compliant with the Qi v1.2.2 specification
• Integrated digital demodulation in chip
• Supports FOD based on quality factor (Q factor) change
• Supports FOD based on calibrated power loss accounting
• Supports Qi MP receiver with 15W output power capability
• Supports multiple types of RX modulation signals (AC capacitor, AC resistor,
and DC resistor)
• 100MHz core frequency
• Availability & Certification:
− Available for demo and evaluation now!
− Qi Certificated
COMPANY PUBLIC 29
Quick Charge 4 Power Bank Solution
New Power Bank Design
- Hi power delivery & High efficiency
- Wireless Charging supports iPhone&Samsung fast
charge
- System support PD + PPS & QC4+
- Software integration includes: wireless power and
battery management, PD stacks and more programable
APIs Key Features:
- Dual-way type C supports input & output
- Quick Charge for input and output, PD+PPS,
QC2,QC3,QC4,
- 2S battery supported (capability~20000mAh), output >50W
- Integrated wireless 15W transmitter, support Samsung and
Apple fast charge
- Digital control Buck-boost
- 2:1 Direct Charging with high efficiency around 98%
- One Control IC provides Buck boost, Charge, QC algorithm,
PD communication and Wireless power managements
COMPANY PUBLIC 30
QC4+ Power Bank System Block Diagram
2x FET
Driver
PWM
Vrail
Q-Value
Detection
PWM Battery
Management
Power Switch
Control
ACMP
MPB461DCLH
PWM
100MHz
32 bit DSC
256KB FlashPD Stack
I2C
Temp. Sensor
ADC
Digital
Buck Reg
GPIO
USB-PD PHY
PTN5110Type-C
Switches
Type-A
D+D-
CC1 CC2 / D+D-
ADC
Full-Bridge
ADC
Curent Sense
LED, Power
Indicator, Touch
Buck-Boost IC
(Digital buck boost with 2DRV)
2:1 PCA9468Only for 1s battery
Current
Voltage
COMPANY PUBLIC 31
5-15W AUTOMOTIVE SOLUTION
COMPANY PUBLIC 32
5W and 15W Auto TX Solutions
− Free positioning (multi coil)
− On chip digital demodulation (reduced BOM)
− Fixed frequency Rail Voltage control (better EMC)
− Q-factor and Power Loss FOD methods
− Key FOB and AM band interference avoidance
− AEC-Q100 grade 2 certification
− Temperature sensing
− CAN, LIN interfaces
− NFC
WCT-5WTXAUTO A13− 105-115kHz frequency range
− WPC golden unit
− MWCT100xA
WCT-15WTXAUTO MP-A9− 120-130kHz frequency range
− iPhone frequency supported
− Fast charging
− WPC golden unit
− Low cost black box solution
− MWCT101xA
WCT-15WTXAUTOS MP-A9− 120-130kHz frequency range
− iPhone frequency supported
− Fast charging
− WPC golden unit
− AutoSAR, MCAL, …
− No need for host controller
− MWCT101xS
WCT-15WTXAUTOS
15W Qi, Autosar
WCT-5WTXAUTO5W Qi A13, 5W PMA
WCT-15WTXAUTO15W Qi, 5W PMA
CONFIDENTIAL AND PROPRIETARY SUBJECT TO CHANGE
COMPANY PUBLIC 33
PCA9440 (MP81)
Integrated half-bridge
Optimized for 15W Qi TXs
12 -> 4 components BOM reduction
2x MOS-FET, 2x MOS-FET Driver,
Current sensing
NXP IN-VEHICLE WIRELESS POWER SUMMARY
MWCT1011A
Low-cost black box solution
15W, Qi 1.2.4 (all topologies support)
iPhone fast charging frequency support
PCA9440 support
UART, SPI, I2C64kB Flash / 16kB RAM
64LQFP
MWCT101xS
Full AutoSAR SW compatibility
15W, Qi 1.2.4 (all topologies support)
iPhone fast charging frequency support
PCA9440 support
CAN-FD, LIN, UART, SPI, I2C, CSEc512kB, 1024kB, 2048kB Flash
64kB, 128kB, 256kB RAM
64LQFP, 100LQFP, 144LQFP
MCAL, AutoSAR OS, ANFC, Touch,
Crypto CSEc, Safety SW, …
Innovation & Standardization
Qi Steering Group member
Specification Working Group chair
RFID-TF, Comm-TF, MP-WG co-chair
Broad patent portfolio
Internal development and test labs
COMPANY PUBLIC 34
65W CONSUMR SOLUTION
COMPANY PUBLIC 35
65W CONSUMER SOLUTION OVERVIEW
5-15W Qi mobile phones support:
One mat to charge phone or laptop,
extended Wireless Power ecosystem
Capable of fitting into the tightest
industrial design constraints: <2mm in
coil thickness, low component count
Cooling concerns eliminated: Operates
At >90% power transfer efficiency
Broad spatial freedom in all directions:
x-y plane, extended z-height65W High-Power Wireless
Charging Receiver
First commercially available high-power wireless
charging solution for notebooks and 2-in-1 tablets
• Charging pad (transmitter): Desktop or mounted below surface
• Receiver: Integrated into notebook or 2-in-1 keyboard
• Certified Software: Power delivery, communications and safety
with complete bill of materials
SHOWCASED AT CES 2018
Breakthrough Technology:
- Advanced control algorithms
ensuring best efficiency
- Run-time monitoring of the
best operating point
- No interference with other
electronic systems
- Innovative hardware and
system design solution
- Complete replacement of
classic power cord and brick
COMPANY PUBLIC 36
WIRELESS POWER – NOT WIRELESS CHARGING
Voltage characteristic equal to USB-C PD and/or barrel connector power source
Df
WPRX
DC/DC
NTB barrel jack
USB type-c
RX control
micro
NTB power
management + battery
Power source info
Control
3.3/5V to power up system without battery involvement
DC voltage
COMPANY PUBLIC 37
65W WIRELESS POWER SOLUTION PARAMETERS
Power: 65W
Working frequency: 100 – 145kHz
Rx – Tx gap (z): 6 – 20mm
Free positioning (x/y): 20/20mm (3 TX coils), unlimited (3+ TX coils)
High efficiency: 80 – 85% (depends on displacement)
Communication: BLE
Principle: Resonant
Rx <-> EC communication: I2C SMBus alike protocol
Safety: NFC cards protection, conductive objects detection (FOD)
Security: Authentication
FW updates: TX & RX secure FW over the air updates through laptop OS
5-15W compatibility: 5-15W RX compatible with 65W TX
COMPANY PUBLIC 38
65W CONSUMER SOLUTION BLOCK SCHEMATIC
All blocks verified
• Communication (BLE)
• Power Control
• NFC Protectoin
I1 – User Interface
I6 – BLE PRU<->PTU Communication
I7 – I2C PRU<->Laptop Communication
I9 – NFC Antenna Connection
P0 – DC PTU Power Input
P3 – AC 100-145kHz TX->RX Power Transfer
P5 – DC PRU Power Output (Stable Voltage Source)
Authentication
MUXPower
Control
Communication
P0
I6
P3
NFC ProtectionI9
Data bus(es)I1
P5
CommI6
I7
TX RXAuthentication
P1Measurements Measurements
COMPANY PUBLIC 39
65W CONSUMER PTX TECHNICAL DETAILS
• Coils− 45mm coil diameter (based on 15W Qi PC0)
− Standalone coil operating for 15W PC03 coils operating for 65W PC1
• Power input
− Input voltage: 19-20V DC nominal
− Compatible with USB-C and standardpower sources
− 90W for 65W PRx output required – system can negotiate maximum output power based on adapter
• Power control− Rail voltage control
− Operating frequency adjustment to keep resonance, best EMC and efficiency
ADC
SPI
19-20V DC
PWM
Full Bridge
MCU
Core
UA
RT
t
COMM
XCVR
SPI
Core
Auth
NFC Cards Protection
DC/
DC
COMPANY PUBLIC 40
HEXAGONAL MULTI-COIL DESIGN
Coil #3
Coil #2
Coil #1
Ferrite
1
#1
#2
#3
1
Ferrite inside Coil #1
1 module
3 coils
77.44mm
45mm
25.98mm
51.96mm
~30W TX hexagonal coil
65-90W RX coil
70mm
5-15W RX coil
WPC power receiver example #4
47.00mm
5-15W RX coil vs.1 TX coil
#1
#2
#3
1
65-90W RX coil vs. 3 TX coils
Each hexagonal coil designed
for 30W power transfer
Possibility to connect independent
full bridge and current measurement
to each coil
3 TX coils running
simultaneously to deliver
65W to PC1 RX coil
1 TX coil running
independently to deliver
5-15W to PC0 RX coil
7 modules
18 coils
Module 3 – only coils #2, #3
Module 5 – only coil #1
COMPANY PUBLIC 41
PTU Dimensions
COMPANY PUBLIC 42
System Overview
RX – 55.0 x 75.0 x 3.2 mm
RCA – 75.0 x 75.0 x 2.0 mm
PTU – 170.0 x 180.0 x 13 mm
MTCAMTX
RX
RCA
PRxPTx
L3 L1
L2
Disabled
Input
Output
CoilDC BusCenter
PTx PCB
PRx PCB
NXP CONFIDENTIAL
COMPANY PUBLIC 43
INDUSTRIAL WIRELESS POWER
COMPANY PUBLIC 44
INDUSTRIAL WIRELESS POWER
Vacuum cleaners, power tools, e-bikes, medical, cameras, …
Complete system – Tx + Rx
In-house NXP technology
Future WPC compatibility
Customizable power level – 30W to 100W
COMPANY PUBLIC 45
15-25W INDUSTRIAL PTU & PRU Block Schematic
I1 – User Interface
I3 – In-Band PRU <-> PTU Communication
P1 – DC PTU Power Input
P3 – AC 100-145kHz TX -> RX Power Transfer
P2 – DC PRU Power Output (Stable 20V Voltage
Source)
Power
Control
P1
P/I3
Data bus(es)
P2
I1
TX RX
P1
Measu-
rementsMeasurements
COMPANY PUBLIC 46
25W System Description
• Input power: 19V/1.5A
• Output power: 10-12V/2.8A
• Efficiency: >60%
• Maximum distance: 35mm
• Total thickness (Coil,ferit,PCB): 6.8mm
COMPANY PUBLIC 47
15-20W Industrial Wireless Power SystemCommercial / Residential through Window Power Transfer
− Working z-gap: 3-35mm
− Max Output power: 15W+
− Environment: Glass, Air, Plexi
0
10
20
30
40
50
60
70
80
Tota
l eff
icie
ncy [
%]
Set load [W]
Graph of total efficiency[%]
3mm plexi 15mm glass 30mm glass
COMPANY PUBLIC 48
60W INDUSTRIAL PTU & PRU Block Schematic
I1 – User Interface
I6 – BLE PRU <-> PTU Communication
I7 – I2C (EEC) PTU <-> Industrial System
Communication
P1 – DC PTU Power Input
P3 – AC 100-145kHz TX -> RX Power Transfer
P2 – DC PRU Power Output (Stable 20V Voltage
Source)
Power
Control
Communication
P1
I6
P3
Data bus(es)
I1
P2
CommI6
I7TX RX
P1
Measu-
rementsMeasurements
COMPANY PUBLIC 49
100 mm
TC
A
100
mm
96 mm
TX
100 mm10-100 mm
M2
XX
Thermal Sensor
X
• 1.0 mm coil wire
• 1.0 mm ferrite
100
mm
T1
X
65W INDUSTRIAL PTU TX & TCA Dimensions
COMPANY PUBLIC 50
WIRELESS POWER AND NFC
COMPANY PUBLIC 51
NFC TAG can be damaged during power transfer if NFC tag is placed between TX and RX coils
DAMAGE PREVENTION: NFC TAG detection during and before charging
WIRELESS CHARGING & NFC TAG CONFLICT
COMPANY PUBLIC 52
ADDING <1W CHARGING TO Qi TRANSMITTERNFC in Qi transmitters can directly charge a fitness tracker, earbuds or
any other small battery driven accessory
Qi charger with NFC
NFCPN7362
MCU
Battery
Fitness trackers to be charged are identified via NFC forum specific wireless charging capability container
in NDEF message. In accordance with NFC forum wireless charging standard.
NFC
NTAG I²C
Power Control
Data Exchange
Power
Management
NFC Fitness tracker, earbud, accessory
data
NFC PowerNFC Power Path
MWCT101x
Support broadest range of device from single Transmitter (<1W to 15W)
COMPANY PUBLIC 53
WIRELESS POWER SW
COMPANY PUBLIC 54
WIRELESS POWER SOFTWARE
Qi certified library
− Advanced algorithms (NXP IP)
− Qi state machine
Fully customizable application
RX<->EC SM-BUS protocol
NFC Stack
ADC Driver
HAL
Wireless Charging Library
Communication
DACADCTimer
Timer Driver
Processor
DAC Driver
Qi FOD
Application
Coil
PWM Driver
Console
SCI DriverDDM
Digital Demodulation
CAN
CAN Drv
TSS
IIC Drv
NFC
SPI Driver
FreeMaster
NFC Stack
Application
Library
SDK
Debug
RX<->EC Protocol
COMPANY PUBLIC 55
IN APPLICATION FIRMWARE UPDATES
• Ability to update firmware in both power receiver and transmitter MCU from Application interface
• All updates contain sha256 hash - signature is checked prior booting to application to validate its integrity
• Ability to revert back to older version of SW is supported
Comm
Comm
COMPANY PUBLIC 56
SOFTWARE DEVELOPMENT VISUALIZATION – GUI
• NXP wireless charging GUI tool is based on FreeMASTER, and
provides: − Configuration: System parameters, coil parameters and FOD parameters
− Calibration: Analog signal sensing coefficients, FOD algorithm coefficients
− Debugging: System real-time status and variables
COMPANY PUBLIC 57
WPC SPECIFICATION
PROGRESS
COMPANY PUBLIC 58
Wireless Power Consortium 30-100W Specification Progress
• Alliance of 6 companies− Joint proposals to move specification forward
• Architecture group was established− Dell, HP, Nok9, Schosche
• Spec drafting approved
• Test/benchmark PRx definition in progress
• BLE vs. NFC communication TF under SG
• New WPC governance model in progress
• Separation of Consumer Mobile/Laptops Ecosystem and Industrial Simple Battery Charging
COMPANY PUBLIC 59
VISION
COMPANY PUBLIC 60
30W – 200W
5 - 15W
<1W
Laptops, Power Tools,
Home Appliances
Smart Phones
Hearing aids, wearables
NXP WIRELESS POWER WORLD VISION
Everything works on the same pad (wearable, mobile, laptop)
Enhanced freedom of positioning
Multidevice charging
COMPANY PUBLIC 61
Partner - NuCurrent
COMPANY PUBLIC 62
Charging without the cord
NXP’s excellent wireless power iCs provide the basis
for an outstanding wireless power experience.
Transmitter and receiver antennas (coils) are critical
to power transfer and NuCurrent, an NXP partner, is
the leader in this technology.
Growing marketplace need
Now commonplace in mobile phones, wireless
charging is advancing rapidly into new product
categories and is becoming a key differentiating
product feature. Sensors, Wearables, Smarthome
Successful wireless power – Fast!
Getting to market fast is critical and NXP and
NuCurrent help get you there. As an NXP
Approved Engineering Consultant, NuCurrent brings
world-class modeling and simulation, along with
NuIQ technology to accelerate your designs
Wireless power experts available to support your product development
- Experts in Wireless Power systems design = successful product launches
- Standards-based wireless power or proprietary systems
Innovators in wireless power and wireless charging
Faster time-to-market and products with the best user experiences
- Patented coil assemblies, which are the thinnest, highest-performance, and
lowest-heat in the industry
- Turn-key modules, multi-coil arrays, control software and services
- Hyper-accurate system simulation tools to optimize performance and reduce
hardware spins
World-class products and services
NuCurrent is an Approved Engineering Consultant with NXP
Wireless charging with NXP and NuCurrent
COMPANY PUBLIC 63
Environmental Modeling: Theory to Actual Product
Accurate. Non-Iterative Builds. Seamless Integration.
From Simulations
Above
Magnetics Simulation & Design
Board Design &
Simulation
*Metal Frame w/ Centralized Magnet✓ Fastest Turnaround
✓ Design Confidence
✓ Fewer Builds
Needed
COMPANY PUBLIC 64
Broad Portfolio to Suit Customer Needs
• Meeting the customer where they need us…
Tx & Rx Coils & Resonators
IntegratedMulti-Coil Arrays
Active Rx & Tx Modules
Systems & Software
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www.nxp.com