Mainstream technology of Wireless Charging Technology(2)

3. A4WP Standard

A4WP stands for Alliance for Wireless Power, a Wireless charging Alliance created by Qualcomm, Samsung and The aforementioned Powermat. The alliance, which also includes members such as Ever Win Industries, Gill Industries, Peiker Acustic and SK Telecom, aims to establish technical standards and industry dialogue for wireless charging devices for electronic products, including portable electronics and electric vehicles.

4. INPOFi technology

INPOFi (an invisible Power field) wireless charging is a new kind of wireless charging technology. Its wireless charging series products adopt intelligent electric transmission wireless charging technology, which has the characteristics of no radiation, high electric energy conversion efficiency, weak thermal effect and so on.
 
INPOFi intelligent Radiation-free Technology compared with other existing wireless charging technologies, iNPOFi has no radiation and USES an electric field pulse mode, which does not generate any radiation. Test results from The Tyre Laboratory in China show that the radiation added value is close to zero. In terms of efficiency, Theil Lab also determined that the charging transmission efficiency of the product of this technology is as high as 90%, completely changing the low efficiency of the electric conversion of the traditional wireless charging with a maximum of 70% or less.
In terms of intelligent management, chip adaptive management technology is adopted, which includes: automatic opening and closing of charging process; Adjust the required voltage and current automatically, and manage the charging process to ensure higher charging efficiency; And can use a unified charging board, for any brand, model of electronic products, safe, convenient, efficient charging. In terms of security, we also take into account the security issues in various weak current charging, such as electrostatic ESD protection, anti-overcharge, anti-impact, etc., and even if the power management of the electric equipment itself has problems, the inPOFI chip can be used to automatically fuse to protect the electronic equipment from damage.
 
It is worth mentioning that, for smart device manufacturers, InPOFI takes a tiny chip as the core to realize ultramicro design, which is only the size of a quarter of a fifty-cent coin and can be easily integrated into any device, as well as various forms of wearable devices. This is the traditional electromagnetic principle of products can not achieve.

As a new generation of wireless charging technical standard, iNPOFi technology is efficient, green, convenient and economical. The charging device using this technology consists of a power transmitter and a power receiver. The size and thickness of the transmitter is comparable to that of an ordinary mobile phone. The receiver is embedded in the mobile phone protective case, which is then placed flat on the transmitter device for charging. The phone doesn't need to be plugged in to charge. Relevant tests show that the electromagnetic radiation in the charging process is zero, and the energy efficiency conversion reaches 94.7%, which is close to wired charging. Charging device supports low voltage power supply, compatible with ordinary USB power supply; Realize low temperature charging, effectively ensure the safety and life of the equipment and battery.

5. Wi-po technology

Wi-po technology: Wi-PO MAGNETIC resonance wireless charging technology USES the high-frequency constant amplitude alternating magnetic field generator to generate a resonance magnetic field of 6.78mhz and achieve a longer emission distance.
 
This technology realizes communication control through Bluetooth 4.0, which can not only achieve safety and reliability, but also support one-to-many synchronous communication. Meanwhile, it also has functions of over-temperature, over-voltage, over-current protection and foreign matter detection. As the carrier of this technology is space magnetic field, the energy will not be emitted like electromagnetic waves, so it will not cause radiation damage to human body.
 
Wi-po MAGNETIC resonance magnetic resonance wireless charging can be applied to mobile phones, computers, smart wearable, smart home, medical devices, electric vehicles and other scenarios.