This article gives you a talk about wireless charging test bench, and wireless charging test methods corresponding knowledge points, I hope to help you, don't forget to collect this site. < / p > < h2 > the article directory list: < / h2 > < ul > < li style = 'margin - bottom: 3 px; list-style: none'>1, What are the requirements for wireless charging QI certification?
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, at least 3 sets of test AIDS, and productsUse instruction manuals and operating instructions, self-declaration forms. 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.
Qi certification is divided into the following three types: - Qi-BPP certification: The product supports less than 5W power, using the Qi protocol, must pass the BPP certification. - QI-EPP certification: The product supports more than 5W power, uses the Qi protocol, must pass EPP certification. - Qi-PPDE Certification: Products support more than 5W power, use Samsung private protocol PPDE, must be tested by PPDE (implemented from July 1, 2019).
To register. Product availability: Submit samples for testing. Compliance and compatibility testing: Strict quality and functional testing of products to ensure compliance with standards. Final confirmation: After passing all tests, the product is confirmed to be correct. Audit and certification: Finally, after the authoritative audit, issued Qi certification.
Qi certification test project compliance test. The sending side needs to send the testAt least 5 prototypes, 1 of which will be scheduled for compliance testing first, and the compliance test sample will be retained at ATL after passing the test. After the
Qi certification, it will be 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. They also need to be compatible with all other QI-certified devices (phones or chargers), just like all Micro-SD cards are compatible with all Mi/h2>
1, 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.
2, you first look at the power of the charger is how much W, how much output current is, and then how much mah cell phone battery capacity,Capacity = current * time, see how much difference between the calculated theoretical charging time and the actual charging time, you can roughly get the efficiency.
3. Products that pass these two tests ensure a safe and reliable wireless charging experience. 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.
4. Compliance test. In total, the sending party shall send at least 5 samples for testing, of which 1 will be arranged for compliance testing first, and the conformity test sample will be tested after passing the testRetained at ATL. The main test contents include: 1) timing of communication protocol between transmitter and 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).
5, 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 be used inCoverage of this frequency band with 10% accuracy is particularly suitable for the precise evaluation of wireless charging coils.
1, according to the brand network query, the wireless charging installation steps of smart vanity are as follows: Buy a charger that supports wireless charging technology: Please ensure that the charger you buy supports Qi or other wireless charging standards, and the output power meets the requirements of your smart vanity. Remove the dresser: Remove the dresser so that you can access the wires and circuit boards inside. disassemblyPlease be careful to avoid damaging the shell and internal parts of the dresser.
2, Pinyen MIRROR Pro makeup mirror is not only a makeup mirror, but also a wireless charging treasure, innovative integration of two product functions, seconds to kill most similar products. 3, living room in the living room, sofa and coffee table as the most core part, 37 degrees smart home electric blankets, wired/wireless chargers, fingerprint signs detection module, reading lights and other equipment integrated in this kind of furniture. Among them, the electric blanket is powered by a USB data cable, which can be used at 45-60 ° CTo make adjustments.
1, wireless reverse charging refers to: the mobile phone as a wireless charging base, to support wireless charging devices (such as: watches, bracelets, mobile phones, etc.) to charge. Wireless reverse charging technology, derived from radio energy transmission technology, can be divided into low-power wireless charging and high-power wireless charging two ways. Low-power wireless charging often uses electromagnetic induction, such as the Qi method of charging mobile phones, but ZTE's electric vehicle wireless charging method uses induction.
2, the principle of wireless reverse charging is to use the power of the device itself to charge other devices. Some smartphones and other devices have reverse charging, which allows them to use their own electrical energy to charge other devices. For example, if you have a phone that supports wireless reverse charging, you can put another device on the back of it and have it draw power from the phone's battery.3, wireless reverse charging refers to mobile phones and other devices that can only receive wireless charging electromagnetic waves, and can now emit electromagnetic waves through the wireless coil to charge other devices that support wireless charging. Wireless reverse chargingCompared with the original wired charger, the electric power will be smaller, and the speed will be slower when charging large-capacity devices, which is more suitable for emergency use in emergency situations.
4, the principle of wireless charging technology is actually relatively simple, the use of electromagnetic induction principle, learned high school physics we should all understand that electromagnetic waves have energy, through the electromagnetic circle can capture this energy, and then form a current in the coil, and finally through a series of circuit integration can achieve charging.
5, wireless reverse charging is that you can send electromagnetic waves through the wireless coil to charge other devices without power; We need both pieces of equipmentSupport wireless charging can be, no data cable can be charged; Normal emergency use can, charging power is relatively small. At this stage, the mobile phones on the market basically support the OTG function, but some low-end machines and individual mobile phones will not support it due to cost constraints.
6, wireless reverse charging refers to a wireless charging technology, that is, a device can charge other devices through wireless charging. The core of wireless reverse charging technology lies in wireless energy transmission. Usually, we use a charger or charging cable to charge our phones or other electronic devices. However, with the technologyProgress, some devices already have wireless reverse charging function.
This is the end of the introduction of wireless charging test bench and wireless charging test methods, do not know you find the information you need? If you want to know more about this, remember to follow this site. < / p >