smartpower technology
TRANSCRIPT
SmartPower Technology
WIRELESS CHARGING MODULE
May 10th, 2015
Elecraft, Inc. Tel:03-3517-6207
Japan distributor
Company Profile
Established in 2014/6/9.
Location: Taipei, Taiwan
Capital: USD$350,000.
Employees: Senior HW/SW/FW engineers, and production managers who work with OEM factories.
Products: Wireless charging modules for handset and vehicle application.
Patents: 2 patents (Invented) in Taiwan, China and USA.
Mother Company: KnowMax (Ten-Year R&D Experiences in Power Electronics).
Distributor: Elecraft, Inc. in Japan.
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Wireless Charging Market Trend
Institution of Standard: WPC’s Qi,
PMA, A4WP
Life proof device
without any connector or
cable
Wearable devices need water-proof
features
Wireless Vehicle
Charging
Value added service
infrastructure
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Wireless Power Standard
• WPC is dominated in the global market.• Automobile Industry adopts WPC as well.
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Mass-Production Products
TMS320F28032PN
Power Source Device Signal
PWM9, 10
PWM11, 12MOSFETSwitch
Filter
DC to DC(Input
Voltage)
PWM13(HRPWM)
Device Signal
PWM1, 2
PWM3, 4MOSFETSwitch
Filter
Device Signal
PWM5, 6
PWM7, 8MOSFETSwitch
Filter
• WPC Type A11 Transmitter• 5W TX• Comply with WPC SPEC version
1.1.2• Foreign Object Detection (FOD)
software tuning and setting.
PowerSource
PWM1,2
PWM3,4MOSFETSwitch
FilterDevice Signal
C2000 Wireless Charging RX
• WPC Type A13 Transmitter• 10W TX• Comply with WPC SPEC version
1.1.2• Foreign Object Detection (FOD)
software tuning and setting.• Voltage control can avoid to
interfere with Key FOB• Free position
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A11 Thermal Test
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A13 Thermal Test
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Wireless Charging Product Considerations
Safety
• Avoid metal object interference.
• No interference with vehicle key fob.
• EMI test passed.
Compatibility
• Comply with the “Qi” standard.
• Prototype has been approved by WPC.
Efficiency
• Support 5 /10 / 20 Watt wireless charging specification.
• System High Efficiency8
BenchmarkSmartPower WPC Module Others
Foreign Object Detection (FOD) Calibration
Software Auto Calibration Very Limited Suppliers with Hardware Calibration
Component Tolerance Middle Tolerance Very Small Tolerance
Component Changeable Yes No or Limited
Customized ControlInterface (CCI)
Can Be Customized in Protocol and HW I/F (I2C, UART, CAN Bus…)
Fixed or no Interface
Fix Frequency Solution (FFS) to Avoid Key FOB
Yes Very Few
System Parameters Calibration
Software Auto Calibration No or Manual Calibration
• FOD, CCI, and FFS are our major advantages over the other suppliers.• SP can provide the customers the most reliable WPC modules.• WPC modules by adopting TI/Freescale/IDC/Panasoinc chip solutions,
usually there is neither FOD nor FFS.9
Safety : FOD (Foreign Object Detection)
Source: Philips Research, March 20, 201410
FOD Experiment Results
Source: Philips Research, March 20, 2014
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SP 20W Middle Power FOD Test : Thermal Result
Coin Temperature can be heated up to 95℃ in 1 minute.
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FOD Important Requirements:
Please make sure that your WPC module suppliers can calibrate FOD parameters for each device.
Please make sure that your WPC module suppliers can have a production process to verify FOD for each device.
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SmartPower - Components Database Analysis
C2000Power
Source
PWM1,2
PWM3,4MOSFET
Switch
FilterDevice Signal
Wireless Power TX
Server DatabaseDatabase Analysis to check
FOD parameters
ONLY SmartPower has the database (know-how accumulation) for the FOD calibration of the mass-production.
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Software Tool and Database Analysis
SmartPower ConfidentialTesting Process to check parameters.
PASS
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FOD Example - Automotive Warning Msg.
Does NOT meet WPC Standard.
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CE4A
Source: WPC Website
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Audi’s Phone Box
Automotive
• Toyota • Chrysler • Audi• Daimler• Honda• BMW
Chrysler
Honda
Toyota Camry
Source: WPC Website, and Toyota Website
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Why Fixed Frequency in the Automotive?
Key FOB is using 125KHz or others, but the Frequency is fixed.
WPC Frequency Control System from 110KHz to 205KHz.
WPC Fixed Frequency Control System can select the frequency to avoid the interference with the key FOB system.
We use 110KHz as the example.
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WPC Fixed Frequency EMI in the Lab.
Can also move to 200KHz.
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Why Choose SmartPower Solution?
Strong Technical Know-How in Wireless Charging and in Power Electronics (KnowMax).
Real-Time and/or On-Site Technical Support from Taiwan.
Customization Service is Provided to meet customer requirements.
Top and Excellent Wireless Charging Module for Automobile Application in the world (per Auto. Spec. and Requirement).
Either FOB TW or FOB China.
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WPC member: KNOWMAX Technology
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Allied Factories for Automobile Requirements
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