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Infineon Wireless Charging

EBV - Infineon Inductive Wireless Charging (LC)

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Inductive wireless charging – consumer, industrial & automotive applications

Consumer and industrial: single- and multi-coil, Qi inductive 110-205 kHz, in-band communication

Example: 10 W Qi transmitter for charging smartphones - single coil solution

Infineon´s Qi transmitter solution enables highest phone charging rates without exotic thermal management applicable for all smartphones on the market (including fast charging). The firmware based solution supports future standards evolution and impresses with accurate foreign object detection (FOD). The use of Infineon’s OptiMOS™ family, driver ICs, and voltage regulators will pay off with superior power transfer performance. Additionally, the XMC™-SC wireless power controller helps to meet strict safety, environmental and regulatory requirements, along with industry-leading charging performance and efficiency.

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Recommended highlight products for inductive wireless charging – consumer & industrial applications
 

  

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EBV - Infineon Inductive Wireless Charging - In cabin (LC)

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Automotive (in-cabin):
High quality dedicated automotive product portfolio with zero defect strategy


Inductive wireless charging solution for in-cabin applications (Qi)

Image of In cabin wireless charging diagram

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When it comes to charging in-cabin devices the critical differentiators to consumer and industrial applications are: differing topology, liability, communication, quality, security and safety requirements.

Image of in-cabin differentiators vs consumer

Image of PMM wireless charging carWith its automotive standard compliant components, Infineon helps to fully exploit benefits derived from inductive charging. One of its key products being the AURIX™ 32 bit microcontroller which represents a scalable, secure solution with reliable and flexible foreign object detection (FOD). DC-DC buck-boost pre-regulator and safety MCU supply, LDO and DC-DC buck can be found in the portfolio together with a broad range of power supply products. Infineon’s MOSFETs and perfectly matching drivers are renowned for highest efficiency and stipulate benchmarks for lowest switching and conduction losses. Also the CAN transceivers add to these benefits by enabling fast communication with state of the art performance.

Download AURIX™ product brief!

For further integration and space optimization Infineon offers a brand new SBC (System Basis Chip) Family TLE9471, which combines a dual supply solution and CAN FD transceiver for communication to gateway.


AURIX™ based wireless charger - three-coil wireless charger solution

Image of AURIX based wireless charging block diagram

AURIX™ based wireless charger - more integrated option with SBC solutions (integrated MCU power and CAN interface)

Image of AURIX based wireless charging block diagram 2

Key features 
 

  • Best-in-class EMI (CISPR-25 class 4, ~10-12dB better than competition)
  • Flexible FOD topology, higher accuracy than competing solutions (additional FOD capability)
  • Single MCU supports wireless charging, system application, CAN and external NFC interface functions
  • Supports greater coil-to-coil Z height than competing solutions
  • Total front-to-back solution ensures maximum efficiency, minimal thermal impact and ease of certification
  • Built-in security functionality meets latest automotive requirements
  • Safety support up to ASIL applications ( ASIL – B/C might be required)
  • High quality dedicated automotive product portfolio with zero defect strategy




Key benefits
 

  • Enabling OEM EMI specification and lower additional cost for filter components
  • Detection of much smaller objects (higher accuracy than standard Qi specification)
  • Lower BOM cost and complexity than competitive solution (re-use of available AURIX™ knowledge)
  • Higher flexibility in mechanical designs
  • No need for additional qualification, certification -> re-use of complete system for customer projects
  • Meeting high security requirements -> low probability of hacker attacks
  • Meeting OEM requirements on system level by using Infineon MCU and supporting components
  • High reliability and low maintenance cost due to high quality products 

 


Recommended highlight products for in-cabin wireless charging

 


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  Automotive CAN transceivers

 
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  Automotive system basis chip with CAN FD
 

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