Wireless charging Qi certification test contentThis includes the Compliance test and the Interoperability Test. The compliance Test was conducted by the Authorized Test Lab (ATL) with 5 samples.
Compliance testing includes the communication protocol between the transmitter and the receiver, the ability to move on the XYZ axis, the energy transmission ability, foreign object detection and many other aspects. Compatibility testing ensures that each QI-certified device and charger can work together and support different manufacturersAnd compatible with products under the Qi standard. Products that pass these two tests ensure a safe and reliable wireless charging experience.
The main test contents include: 1) timing of the communication protocol between the transmitter and 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). Compatibility testing.
Wireless charging Qi certification content: including Compliance test (Compliance test) andInteroperability Test. The compliance Test was conducted by the Authorized Test Lab (ATL) with 5 samples.
Wireless charging Qi certification test includes: Compliance Test (Compliance test) and compatibility test (Interoperability Test). The compliance Test is conducted by the Authorized Test Lab (ATL), and 5 samples are sent for test. When conducting wireless charging efficiency tests, we need several main tools and equipment. The first is a wireless charging pad for testing, which needs to be able to support all the major charging protocols, such as Qi, AirFuel, and PMA. In addition, an ammeter is required, and its main function is to test the current consumed by the wireless charging pad when charging. When testing, we need to first decide which phone to test. Products that pass these two tests ensure a safe and reliable wireless charging experience. The testing process of Qi certification includes manySpecific standards and stringent requirements covering testing for safety, interoperability and energy efficiency ensure that each device and charger works together and is compatible with multiple devices. 1, wireless charging coil test good or bad method is as follows: test the resistance value of the coil, resistance value within a certain range is a good product. Test the Q value of the coil, the higher the Q value, the better the performance. Test the coil temperature rise, the lower the temperature rise, the better the performance. Test the efficiency of the coil, the higher the efficiency, the better the performance. 2, the secondary winding is badThe 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. 3, wide impedance range, to meet a variety of needs of the inductance of the wireless charging coil is usually at the micro hen level, 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 band with 10% accuracy, making it particularly suitable for the precise evaluation of wireless charging coils. 4, the size and line of the currentThe thickness of the circle matters, as does the frequency. Look at the specific circuit, sometimes when the difference in inductance value is not large, the impact on the output voltage and current is not obvious, but it may lead to a large difference in the change in unit period voltage/current, and also lead to the difference in loss and efficiency, so the choice of inductor is reasonable at this time, mainly to see whether it can get better performance under the premise of meeting the size specifications. 5, 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. Wireless chargingThe process of electricity is the transmission of electrical energy from the charging device to the receiving device. Ways to check whether the phone supports wireless charging are wireless charging test requirements : check the phone manual, check the phone Settings, check the phone appearance, official queries, third-party applications, etc. Check the phone manual in the specifications of the manual Wireless charge test requirements , there will be a relevant introduction to wireless charging of mobile phones. If the phone supports wireless charging Wireless charging test requirements , there will be clear instructions in the manual. View Phone Settings In your phone's Settings, you can find options such as battery or wireless and networking. Check the phone's manual If the wireless charging test requires that you are not sure if your phone supports wireless charging, you can check the phone's manual. In the specification parameters of the manual, there will be a relevant introduction to wireless charging. If your phone supports wirelessCharging, the instructions will be clear. View the phone's Settings If you have purchased the wireless charging test requirements mobile phone, but do not know whether wireless charging is supported, you can check through the phone's Settings. One: Test with a wireless charger 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. This test is because the current wireless charging mobile phones and chargers on the market are compatible with the QI protocol, and can be charged immediately. If usedIs vivo mobile phone, wireless charging is also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, do not need to be like the traditional wired charger need transmission cable to transmit electricity to the device, but will need to charge the device and wireless charging base contact can be charged. Check the phone's manual or wireless charging test. If there is a mobile phone manual saved, or if there are instructions for use inside the mobile phone, you can check whether the mobile phone has the introduction of wireless charging function in the function parameters. The simplest and most direct method is to put the phone on the wireless charger and display charging, which means that it has the wireless charging function, and vice versaIs not supported. Wireless charging coil test is good or bad
How do I know that my mobile phone does not support wireless charging function