Qi Certifiction/WPC Certification

Wireless charging Alliance (hereinafter referred to as WPC alliance) is a cooperative organization composed of several independent companies. Qi standard is an international standard established by WPC for compatible wireless charging stations. Mobile phones, cameras, remote controls and all electronic products with Qi logo will be compatible with all charging stands with logo. To understand how to apply for and pay for Qi certification, you need to understand the following points: 1. Qi certification is only for WPC (wireless charging alliance) members, that is, if you want to do Qi certification, you must first apply for WPC wireless charging alliance members; 2. WPC members are divided into different categories, with different fees and qualifications, and the annual fee ranges from US $5000 to US $*; 3. The cost of Qi certification varies according to the charging power. Introduction to Qi test Guarantee Power Whether it passes or not is mainly related to the electrical parameters of the test sample (resonant capacitor). The capacitor material mainly affects the efficiency. Low efficiency is easy to lead to GP failure. Cog or NPO capacitors are recommended. The capacitance efficiency such as CBB / X7R is relatively low. 2. Under the same capacitor material, appropriately reducing the capacitance value can produce more power, and the capacitance value should be greater than 347nf. 3. It is equipped with an adapter with slightly higher output voltage, such as Samsung's 5.3v output adapter. 4. During the test, ask the tester to offset the test coil properly. To find the output power point. GP test steps 1. Test coil When testing guarantee power in the laboratory, six coil tests are used 2. Test load Each coil will be tested with several different gear loads GP test result requirements: 1. After using different coil tests and changing load, it is required that FOD cannot be reported during the test; 2. The valu

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