1, followed by wireless charging test equipment Wireless charging test equipment has low power and high cost. At present, the passenger car wireless charging power is up to 11kW, the efficiency is lower than the wired charging, the equipment cost is more significant, a 3kW wireless charging test equipment wireless charging system price of more than 10,000, and the same efficiency of AC slow charging pile only more than 1,000. The high cost and low efficiency make the popularization of wireless charging technology face serious challenges. Moreover, the electromagnetic wave radiation problem caused by wireless charging cannot be ignored. 2, in general, automobile wireless charging technology has certain advantages, such as easy to use, safe and reliableParty queries, third-party applications, etc. In the specification parameters of the manual, there will be a relevant introduction to wireless charging of mobile phones. If the phone supports wireless charging, it will be clearly explained in the manual. View Phone Settings In your phone's Settings, you can find options such as battery or wireless and networking.
If you use vivo mobile phone, wireless charging is also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, it is not necessary to transfer electricity to the device like the traditional wired charger, but the device that needs to be charged can be charged by contacting the wireless charging base. How to test the wireless charging efficiency of the mobile phone in the horizontal evaluation
1, the first is a wireless charging pad for testing, it needs to be able to support all the major charging protocols, such as Qi, AirFuel, and PMA. An ammeter is also required, and its main function is to test the wireless charging padThe current consumed during charging. When testing, we need to first decide which phone to test.
2, therefore, in the test must consider the charger, interface line and battery three aspects of the match, in order to ensure the accuracy of charging efficiency. Next, the fast charging efficiency of different mobile phones is evaluated through a test device with a charge control chip. Test equipment will record the battery voltage, current, charging time, charging speed and other key data of each mobile phone, and then comprehensively calculate the charging efficiency of each mobile phone.
3. First, the machine horizontally evaluates the opponentThe battery loss test of the machine is completed by simulating the user's use scenario. Testers will use the phone for a certain period of time for different operations, including music, video, games, etc., to test the wear and tear of the phone in different scenarios. At the same time, it is also necessary to consider various network environments, such as 4G, 5G, WIFI, etc., in order to test the battery consumption under different networks.
4. In the horizontal evaluation, we adopted the following three methods for evaluation. Standby test Standby test is one of the most basic tests to evaluate the performance of a mobile phone battery. The test requires the phone to keep the screen on and run various appsTest, measure the performance of mobile phone power management, such as standby time, battery consumption, etc. For the standby test, we used a test program during the test and set the brightness of the phone to the same standard value.
5, the answer is need to pass the test to know. Machine horizontal evaluation is specialized in a variety of testing institutions, the agency through the mobile phone's level is strictly tested, and finally obtained whether the level is accurate.
1, the measurement of charging pile can refer to Zhiyuan electronic PA6000 power analyzer, its power measurement accuracy is high, good performance is widely recognized by users, specifically has the following characteristics: 0.02% accuracy, 1MHz bandwidth, 200KS/s sampling rate; 7 channel power input unit synchronous measurement; Testing to meet the latest charging pile industry standards; It is suitable for power measurement in charging pile industry which is very sensitive to precision and multi-channel synchronous testing. 2, the charging pile in the current market more people are concerned about, but the charging pile is a large system integration product, not a kind of instrument can be tested.At present, the instruments that can be used are roughly divided into three categories, a power analyzer; Another oscilloscope; There is also a CAN bus analyzer. These three types of instruments can make some tests for charging piles.
3, XL-942S charging pile test equipment with XL-3603 load, meet the testing requirements of metrology verification, interoperability testing, protocol consistency testing, and meet the requirements of the State Grid 45 document acceptance stage, the operation stage of the test project. The equipment integrates charging pile field tester, power analyzer, oscillograph recorder, BMS simulator software, and vehicle DC land port circuit simulationBox, insulation resistance tester and other functions.
4, the charging pile is now in full swing, if it is only to meet the test conditions of your problem, it is too simple, the better performance of the power meter can meet, this is generally used in the production line.
5, charging pile unbalance is the standard proposed by the new national standard, in general, in order to solve the problem of the unbalance of the charging pile, the key is to test multiple points of voltage and current at the same time, to achieve the purpose of testing the unbalance, the focus is to test multi-channel at the same time, now more is the ZLG Zhiyuan electronic power analyzerCan be measured simultaneously in 7 channels.
6, depending on which part of the DC charging pile you need to test, if you just test its communication part, you can use the ST-9980A, ST-880 such equipment, portable is also very convenient, if you want to test the performance of the pile, it is necessary to use the power analyzer, oscilloscope these, Specifically, you can consult the manufacturer of the equipment, Seth New can, they can do a complete set of test programs.
1, Wi-Po technology, for Wi-Po magnetic resonance wireless charging technology, the use of high frequency constant amplitude alternating magnetic field generation device, to generate 78MHz resonant magnetic field, to achieve a longer transmission distance. The technology realizes communication control through Bluetooth 0, which is safe and reliable, and can support one-to-many synchronous communication, and also has over temperature, over voltage, over current protection and foreign object detection functions.
2. Wireless charging technology (Wirelesschargingtechnology; Wirelesschargetechnology), derived from wireless power delivery technology.
3, wireless charging technology is a technology that uses magnetic fields or electromagnetic waves for power transmission, which allows the current to be transmitted from the power supply to the receiving device without a physical connection. This technology relies primarily on physical principles, such as electromagnetic induction or magnetic resonance, rather than on intelligent algorithms or data processing capabilities.
4, wireless charging technology uses magnetic resonance in the electric field and magnetic field between the charger and the device to transmit electrical energy, coil and capacitor form resonance between the charger and the device. This system could be expanded in the futureGeneral applications, such as charging zones for electric vehicles and power transmission for computer chips. A charging system developed using this technology would require only one hundred and fifty times the current charging time.