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qi无线充规范wirelessxx 2024-10-21 13:45 23
1, Apple Wireless Charging Protocol 2, What is qi wireless charging 3, What are the requirements for wireless charging QI certification? Apple Wireless Charging Protocol 1, App...

qi Wireless Charging Specification (qi Wireless Charger)

Apple Wireless Charging Protocol

1, Apple wireless charging protocol is as follows: Qi wireless charging protocol: Qi is the wireless charging standard launched by the International wireless charging Alliance, most of the mobile phones, TWS Bluetooth headsets, tablets and other devices that support wireless charging are Qi wireless charging protocol. Since the iPhone 12, Apple has joined the MagSafe wireless charging protocol, which is essentially a private transformation on the basis of Qi, supporting magnetic absorption, and the power can be up to 15W.

2, explore the scope of Apple MFi certified wireless charger, mainly involving two major scenarios. First, if notThe line charging protocol is the international standard Qi, the maximum charging power can reach 5W, Apple will not conduct MFi certification for such products, unless the product needs to apply the MagSafe charging protocol. For devices after the iPhone 12, Apple introduced the MagSafe wireless charging protocol.

3, Apple wireless charging protocol is called PD fast charge protocol. The full range of iPhone 13 supports wireless fast charging, which can be charged to 50% power in 30 minutes, requiring the use of 20W or more power adapters, and supports 15W MagSafe magnetic wireless for wireless chargingUse a physical cable for charging. This technology transmits power through a charging base or charging pad, and simply places the device on the charging base to start charging.

2, Qi wireless charging refers to the application of Qi wireless charging standard in the way of electromagnetic induction for mobile phones, cameras and other handheld low-power equipment wireless charging technology. The Qi wireless charging standard, initiated by the Wireless Charging Alliance, is currently the world's widely recognized wireless charging standard. Qi wireless charging uses the principle of electromagnetic induction for wireless charging of equipment.

3, Qi is the world's first to promote wireless charging technologyThe Wireless charging standard launched by the Wireless Power Consortium (hereinafter referred to as the Alliance), a standardization organization, has two characteristics: convenience and versatility. First of all, different brands of products, as long as there is a Qi logo, can be charged with Qi wireless charger.

4, qi wireless charging is a technology that uses electromagnetic pulse to achieve wireless charging, the principle involves two groups of coils, the emission group and the acceptance group, a power, an induction, similar to the principle of high voltage pack, but more complex. Its advantage is that there is no cable connection, easy to use, lackThe point is that the charging effect of high-capacity batteries is not ideal, and the charging efficiency is low. The charging distance is generally limited to a few millimeters, similar to a charger.

5, Qi wireless charging, simply put, is a kind of electromagnetic induction principle, through the Qi standard for mobile phones, cameras and other small equipment wireless charging technology. This standard is formulated by the world-renowned organization Wireless Power Alliance (WPC), and has been widely accepted and applied by the industry, including Apple, Samsung, Nokia and other global giants have adopted Qi as the wireless charging standard for their devices.

What are the requirements for wireless charging QI certification?

The

Qi certified test process includes a number of specific standards and stringent requirements, covering safety, interoperability and energy efficiency testing, ensuring that each device and charger works together and is compatible with multiple devices. This process also includes member registration, Logo license agreement signing, product registration, information filling, Logo authorization review, test implementation, interoperability verification, product information revision and final review, which are included in the WPC product database.

Apply for Qi certification to provide 5 samples and testsAt least 3 sets of auxiliary equipment, product instructions and operating instructions, self-declaration form. The certification process is carried out by a professional QI certification agency, such as Beijian New Energy, which has CNAS/CMA qualification and provides a full range of one-stop services from certification application to product registration to help customers easily obtain a pass to enter the multinational market, cost-effective and faster cycle.

Compliance test. At least 5 samples are required to be sent to test, one of which will be scheduled for compliance testing first, and the compliance test sample will be retained in ATL after passing the test. The main test contents include: 1) transmitterThe timing of the communication protocol with the receiver; 2) Test the power output capability through the translation of the XYZ axis; 3) The maximum supply capacity of energy transmission; 4) Foreign Object Detection (FOD).

Wireless charging Qi certification test includes Compliance test and Interoperability Test. Compliance testing is conducted by the Authorized Test Lab (ATL)5 samples.

Wireless charging Qi certification mode is divided into: 1) Qi-BPP certification: The product supports less than 5W power, the use of Qi protocol, must be BPP certification. 2) QI-EPP certification: The product supports more than 5W power, the use of Qi protocol, must be EPP certification. 3) Qi-PPDE certification: Products support more than 5W power, using Samsung private protocol PPDE, must pass the BPP certification PPDE test (from July 1, 2019).

WPC has an absolute advantage in the field of wireless charging standards. Qi wireless chargingStandards effectively ensure that we never run into these problems. After the phone or charger passes the Qi certification, it is tested for safety, effectiveness and compatibility by the Wireless Charging Alliance. Qi certified devices must operate at 0-30 watts (Qi standards can reach 1 kilowatt, but not for mobile phones), pass temperature tests, and comply with Qi FOD standards.