2024 Asia hosted by Charging Head NetworkWireless chargingAt the meeting,Semantic methodWang Pengfei, Multi market Marketing Manager of Semiconductor Connection and Safety Business Department, attended and published《ST25NFCstayWireless chargingApplication in Technology - Introduction to STSAFE Security Chip ", the audience was buzzing.In the speechNFCThe wireless charging technology and security chip are introduced emphatically.
Everyone can't use mobile phones, tablets, headsets and other electronic devices without charging. With the continuous development of technology,Wireless chargingSlowly into everyone's life.Many mobile phones now haveWireless chargingFunction: The car is equipped with a wireless charging area, and home electronic devices will also support wireless charging technology in the future, providing a more convenient life for everyone.According to the statistics of third-party professional institutions, wireless charging applications will continue to grow in the future, and wireless charging mobile phones will account for 31% of mobile phone shipments in 2024.
ST25NFCApplication of GPRS in wireless charging technology
In order to improve the compatibility of charging, there are many wireless charging protocols and specifications on the market.for exampleNFCFORUM standard, Qi standard, Ki standard.
NFC technology is a kind of near-field communication, short distance low rate communication mode. NFC wireless charging can realize non-contact wireless charging of small devices on the original NFC reader writer and tag technology.Mainly for wearable miniaturized devices, the receiving end is generally within 1W.
ST25NFC wireless charging scheme is mainly based onSemantic methodThe high-performance NFC reader/writer and dynamic tag are used as the transmitter and the receiver.The transmitting end antenna is 12 × 12mm, and the receiving end is 9 × 9mm.NFC wireless charging can be applied to wearable devices, such as smart glasses, rings, headphones, hearing aids, etc. The antenna can be very small to meet the wireless charging requirements.
Because the antenna is very small, the transmitter and receiver of NFC wireless charging should be very accurate.Most NFC wireless charging scenarios will fix the positions of the transmitter and receiver, generally using the charging box.NFC wireless charging is compatible with NFC protocol, so it is possible to use mobile phones that support NFC to charge devices in the future.
Ki also supports up to 2300W in the development process of the agreement. In the future, the kitchen may be a very flat desktop. All household appliances use wireless charging, and can be powered on when placed on the desktop.NFC technology also plays an important role in Ki. When the appliance is placed on the desktop, the energy required for communication is established through NFC wireless charging.Secondly, NFC is used as the transmission of Ki protocol. During the use, the power of the user is controlled through NFC communication.
NFC can also be used as a way of card protection.
With the increasing power of Qi wireless charging, it is very likely that the NFC card will be burned.ST25NFC wireless charging aims at protecting the NFC card according to different scenarios and software judgments. It is the recommended method of using NFC as a foreign matter detection in the Qi protocol as a supplement to the Qi protocol foreign matter detection.
Introduction to STSAFE Safety Chip
Since 1984, ST has launched the first MCU bank card with a history of nearly 30 years,Semantic methodSemiconductor products cover eSIM, SIM, ID card, bank card and various security chips.At present, many overseas mobile phones are using embedded SIM, basically using ST security products.
STSAFE-A is a security chip with a very high security level but very simple to use.It is mainly used for authentication and authentication, and is used together with the main control chip MCU/MPU.ST has an optimized scheme for authentication chip, which is convenient for customers to quickly integrate.
ST's definition of security chip is that the audit and regular maintenance from the development, manufacturing and supply chain stages comply with high-level security standards.The design of security chips from software to hardware is carried out in the security factory. The chip itself adopts a professional architecture, which can prevent detection, fault injection, and physical attacks. The security level is very high.
In ST's safety factory, we can help customers burn customized certificates.
The use of independent security chips can free up MCU resources for end users and make the design easier.No additional safety investment is required for customer production, and all safety links can be completed in ST safety factory.
ST's security chip sequence includes STSAFE-A100, STSAFE-A110, and STSAFE-A120. STSAFE-A110 can meet the Qi 2.0 certification requirements.
The STM32 software and hardware development kit, samples for Qi certification and reference codes are completely free of charge to customers.Technical support can help customers integrate quickly.
For Qi wireless charging, STSAFE-A110 supports customers to pass Qi 1.3 and Qi 2 certification.
As a member of the WPC,Semantic methodSemiconductor is deeply involved in Qi's standard setting process, so as to gain rich knowledge and professional skills leading in the industry.As a manufacturer CA service provider,Semantic methodSemiconductor is one of the few suppliers that can issue "product unit certificate" and "manufacturer certificate", and issuing certificate is also part of its safety process.These basic information must be embedded in the wireless charger for authentication with the receiver.STC can also provide important support in the design process, because its security products involve a wealth of supporting tool ecosystems, including various development kits and hardware and software reference designs.
As an international chip supplier, ST has the best hardware, one-stop solution and complete ecosystem in security chips.
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Summary of charging head network
STMicroelectronics shared the application scenario of NFC wireless charging technology at the 2024 Asian Wireless Charging Conference. In the future, NFC and NFC wireless charging technology will be used even in the kitchen.With profound technology accumulation in the field of security chips, STMicroelectronics is an important international chip supplier, providing the best hardware, one-stop solutions and a complete ecosystem.STSAFE-A110 can meet the latest Qi 2.0 certification requirements and help customers quickly integrate.STC can also provide important technical support in the design process, including various development kits and hardware and software reference designs