1. For test projects, some simple ones are not mentioned (see the detailed test catalog in the attachment), which are generally easy to FAILThe project is GUARANTEE POWER, FOD foreign body monitoring of these two items. Everything else is easier.
2, plug the wireless charger into the power supply, and check whether the wireless charger is working properly. If the wireless charger does not work properly, you can try to replace the charger or check whether the cable of the charger is damaged. Place your iPhone on a wireless charger and watch to see if it starts charging. If the phone does not start charging, you can try adjusting the position of the phone or repositioning the phone. Check whether wireless charging is enabled on your phone.
3. Use wirelessCharger test, this is the most simple and direct method, put the phone on the wireless charger, if the charging is displayed, it means that the wireless charging function is not supported.
Wide impedance range, to meet a variety of needs The inductance of the wireless charging coil is usually at the micro hen level, and the test frequency is in the kHz range, which requires a wide and accurate measurement range. The E4980A/AL has a wide impedance range from 4 milliohm to 100 milliohm, and can cover this frequency band with 10% accuracy, making it particularly suitablePrecision evaluation of wireless charging coils.
The secondary winding is broken, the wireless charging coil has two windings, one is the main winding, one is the secondary winding, after the secondary winding is damaged, it will cause the main winding to heat, and the output has no voltage.
Wireless charging coil test coil capacitance to the ground because the capacitor is the electric field energy and magnetic field energy conversion material, in the process of wireless charging, electric field energy and magnetic field energy need to be converted. The process of wireless charging is the transmission of electric energy from the charging device to the receiving device.
Plug the wireless charger into the power supply and check the wireless chargingWhether the device is working properly. If the wireless charger does not work properly, you can try to replace the charger or check whether the cable of the charger is damaged. Place your iPhone on a wireless charger and watch to see if it starts charging. If the phone does not start charging, you can try adjusting the position of the phone or repositioning the phone. Check whether wireless charging is enabled on your phone.
Once the test is completed, we can draw specific data results and compare the performance of different chargers for a comprehensive evaluation. When choosing a charger, we need to ensure that its output power can meet our use needsAt the same time, it is also necessary to consider whether the wireless charging efficiency meets our expectations. In short, wireless charging technology has brought a lot of convenience, but for the vast majority of users, they do not know enough about its performance.
1, the new standard of wireless charging: In-depth analysis of the popularity of Qi certification wireless charging technology is inseparable from strong technical standard support. Qi Certification, full name Qi Wireless Charging, is by the Wireless Charging Alliance WPC (Wireless Power Consortium) developed and implemented the global wireless charging standard.
2, wireless Qi test includes Compliance Test (Compliance test) and compatibility test (Interoperability Test), the compliance test is conducted by the ATL (Authorized Test Lab), send 5 samples.
3, Qi standard, PMA standard. Qi standard: It has two characteristics of convenience and versatility. Don'tProducts of the same brand, as long as there is a Qi logo, can be charged with Qi wireless charger. Mobile phones, cameras, computers and other products can be charged with Qi wireless chargers. PMA standard: Wireless charging standard developed in the United States, with a number of security protection measures.
4, Qi2, is an innovation in the field of wireless charging. Since its inception in 2008, the WPC Wireless Charging Alliance has been committed to promoting the standardization of wireless charging technology worldwide. Based on the Q3 protocol, the Qi2 standard introduces the MPP protocol and magnetic alignment technology, and the operating frequency is increased to 360kHz and the foreign body detection function is providedEnhanced, and in MPP and EPP modes, providing 15W efficient transmission capacity, the future is expected to achieve higher power wireless charging.
5, qi2 wireless charging means a new enhanced wireless charging standard. The biggest experience difference QI2 brings to users is that the use of QI2 certified wireless charging devices can provide 15W charging experience to devices that support QI2. WPC sees QI2 as a significant opportunity in 23/24. Qi2 is a new enhanced wireless charging standard developed by the WPC Wireless Charging Alliance in 2023.
Qi wireless charging certification includes the following: 1) membership application; 2) Product registration; 3) Product provision; 4) Product compliance testing; 5) Product compatibility test; 6) Final product confirmation; 7) Review and issue certificates. Qi certification process Wireless charging Qi certification test includes: Compliance test and Interoperability Test.
Qi certification test projectCompliance testing. 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.
Qi certification testing content Detailed Qi certification testing content is rigorous and comprehensive, mainly including: transmitter and receiver communication protocol: to ensure that both sides can quickly and accurately exchange data. Power output and stability: In the XYZ axis translation test, verify the wireless charging capability of the device at different angles. Energy transmission limit: Test the maximum power supply capacity of the equipment to ensure safety performance.
WirelessThe content of Qi certification test includes Compliance test and Interoperability Test. The compliance Test was conducted by the Authorized Test Lab (ATL) with 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 pass 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).
Qi certification: the universal language of the Wireless charging world Qi, the full name of the Wireless charging Consortium (Wireless Power Consortium, referred to as WPC) masterpiece, it defines a universal wireless charging standard. This standard with "convenience" and "versatility" as the core, to ensure that different brands of products only need to have the Qi logo,