Wireless bidirectional fast charging is a new charging technology that can be used in a variety of scenarios such as mobile devices and electric vehicles. It can charge quickly, supports two-way transmission, and does not require the use of traditional chargers and cables. This technology is based on the principle of electromagnetic induction, by wirelessly transmitting electrical energy to the device to charge. When the internal charge of the device is full, the excess power is reversely transmitted back to the charger.
Two-way fast charge means that both output and input support fast charging; The output supports fast charging, that is, the charging treasure supports fast charging when charging the mobile phone, and the mobile phone supports fast chargingSupport for fast charging, that is, the charger and the charging bank support fast charging when charging the charging bank. At present, the charging speed is generally 5V, 2A is the base benchmark, the charging power exceeds 5V, 2A is the concept of fast charging, in principle, it is also divided into two directions of pulling high voltage and increasing current.
Fast charge protocol: PD QC fast charge power: 10W Wireless 18W wired This South Carolina wireless charging treasure battery capacity is 10000 MA, support QC18W and PD18W wired fast charge function, also support 10W wireless fast charge function. The South Carolina wireless power bank POW2 uses a triple cooling systemMeter, whether wireless or wired charging will not be hot.
November 25 news, this afternoon Huawei officially released its new MatePad Pro tablet computer, Yu Chengdong mentioned when introducing this tablet computer, this tablet is the first two-way wireless charging tablet. Huawei MatePad Pro is the world's first two-way wireless charging tablet, equipped with 7250mAh large-capacity battery, support 40W super fast charge 15W forward wireless fast charge, 5W reverse wireless fast charge technology.
Wireless fast charging is a combination of wireless charging technology and fast charging technology, nowThe mainstream models on the market all support wireless fast charging technology. Wireless fast charging mobile phones are Xiaomi Huawei P40, Mate30, Mate30 pro and so on. Wireless charging technology Because the charger and the electrical device transmit energy by magnetic field, the two are not connected by wires, so the charger and the electrical device can be no conductive contact exposed.
Wireless fast charge is actually a function, is the short for wireless charging function, but also represents the wireless charger. This charger can not be connected to the socket, very convenient. With the function of fast charging, it does not need the data cable to charge the phone directlyThe test environment adopted this time is not the same, and the results are only a reference. Huawei Mate 20Pro uses a shutdown to charge at 0% power, and the entire capacity of the battery is 4300 mA; The oppo Find X Lamborghini uses 2% of the battery to charge, also off, and the entire battery capacity is 3400 mah.
First of all, the mobile phone 40 watt wireless fast charge is based on the welfare of people's lives on the basis of scientific development, the invention of the mobile phone 40 watt wireless fast charge is precisely because people need it, so the mobile phone 40 watt wireless fast charge is convenientOur lives are not in doubt.
w is A unit of power, A is a unit of current, p=UI power = current times voltage, the difference is that they are not a unit, and there is no comparison, can not be used to judge 5A and 40W charging speed fast or slow.
1, wireless charging is not fast wireless charging, the first may be that the wireless charger bought by the user is not a wireless fast charger, so it is not possible to fast charge, for thisOne thing to know. If the wireless charger bought by the user is a wireless fast charger, then the charging head may not be used, for example, the power of the charging head is relatively small, so the charging speed is relatively slow.
2. Please check whether the indicator light of the wireless charger is on. If the indicator light is off, please check whether the connection between the wireless charger, data cable, charger and power supply is in bad contact.
3, wireless charging efficiency is low, heat, can not leave the base, otherwise the efficiency is lower and the heat is larger, and the fast charging power is largeHot will be damaged. When the induction cooker is opened, the cooling fan must be opened first, and the cooling fan must be shut off before stopping.
4. First, find and open the phone Settings on the main interface of the application and click the option of "Power Saving and battery". Click the Settings icon in the upper right corner. Turn on the switch on the right side of [Top speed wireless charging mode]. First of all, in the main interface of the application, find and open the phone Settings and click the "Power saving and battery" option. Click the Settings icon in the upper right corner. Turn on the switch on the right side of [Top speed wireless charging mode].
5, S6 can not fast charging reasonsThere are mainly the following points: Poor connection for the use of non-original chargers and data cables did not open the fast charge option software version resulting in hardware failure of the phone itself can be carried out the following operations to try to fast charge: confirm whether the charging cable and the charging head end is inserted to the end, if not fully inserted, can not achieve fast charging effect. Check whether the original charger and charging cable are used.
6, does not belong to fast charging. According to the official website of the electric vehicle, the wireless charging system mainly uses the principle of electromagnetic induction, and realizes energy transmission through energy coupling through the coil.
1, wireless fast charge is not very fast Wireless fast charge is fast , it is not very slow. Wireless fast charge is much faster than wireless fast charge Wireless fast charge is much faster than wired fast charge. The power of the charging head wired output to the wireless fast charge base Wireless fast charge is not the wireless fast charge output power but the wireless fast charge input power. Charging time of more than 2 hours of wireless fast charge, less than wired fast charge 1 hour30 minutes is not a fast charge. Unexpectedly, the wireless fast charging efficiency of 60% when the 18W is charged for 2 and a half hours.
2, the difference is that the wireless charger will have a loss when charging, and the loss is between 30-40 percent. So the ordinary charger is faster than the wireless charger. There are already fast chargers and fast wireless chargers, but the results are the same. For example, the fast charge Samsung S8 takes 90 minutes, then the fast wireless charger takes 190 minutes, which is the result of wireless fast charge my own actual test.
3, in addition to the advantages of convenience, wireless charging has many disadvantages. For example, the charging time is too slow, the Samsung Note 5 is full for at least 6 hours Wireless fast charge ; If you use a fast charge, it will be full in a little more than 2 hours. Although wireless charging also supports fast charging now, it is still not as fast as wired charging, after all, wired charging already supports 40W fast charging, and wireless fast charging is only 15W.
w NoneLine fast charge refers to wireless fast charge technology power up to 50W. The 50W wireless charger can almost complete the entire charging process of the 4500mAh large-capacity battery in less than 50 minutes. That's about the same speed as most wired fast charges today.
W wireless charger refers to the charger to charge the mobile phone maximum charging capacity wireless fast charge fast , if the maximum power of the charging head is less than 50W Wireless fast charge fast , the maximum output power is the same as the charging head, if the power of the charging headGreater than 50W, the maximum power of the charger is 50W.
Huawei Mate 60 Pro as Huawei's high-end flagship phone, it is also ahead in charging technology. The 50W wireless fast charge power means that users can quickly charge their mobile phones in a short period of time, which is very convenient for modern people, especially in busy lives, time is particularly precious. In addition, wireless fast charging technology also provides users with a more convenient way to charge, no longer need to worry about cable winding and plugging problems.
The Ministry of Industry and Information Technology stipulates that the power of wireless fast charge must be less than 50 watts,There are such requirements why they are not very clear, but what they know is the limit, the power of this charge is not because of radiation, because radiation is everywhere, all the time, and not all radiation will have an impact on the human body.
This problem is actually not very good because in addition to the news exposed by various mobile phone manufacturers, no one knows how serious their losses are! Take Huawei for example, many people know that Huawei has launched noLine fast charge device, and the power has always been 50W, never more than the meaning.
Different, the wireless charger will have a loss when charging, and the loss is between 30-40 percent. So the ordinary charger is faster than the wireless charger. There are already fast chargers and fast wireless chargers, but the results are the same. For example, the fast charging Samsung S8 takes 90 minutes, then the fast wireless charger takes 190 minutes, which is my ownResults have been obtained after actual testing.
is different. Moreover, according to different wireless charger manufacturers now, the current and frequency are not the same. (The students themselves bought one online, it is said that the speed is relatively fast. The way to make it is to connect the metal pole of the wireless charger receiving device to the metal sheet of the charging electrode of your own phone, and then drag the wire outside to receive from the outside.) The heat is caused by the large current in the charger, which leads to obvious heat.
Slow charging speed: Due to the low efficiency of wireless charging, the charging speed is relatively slow. This makes the user waitIt takes longer to charge. High cost: Wireless charging technology is relatively new compared to wired charging technology, so its cost is higher. This also means that wireless chargers may cost more than wired chargers.
Faster speed: For situations where fast charging is urgently needed, wired charging usually provides faster charging speeds. Stability: Wired charging is not limited by distance, as long as the power supply and equipment are connected, it can provide power stably. Low cost: Most wired chargers have relatively low prices and are suitable for users with limited budgets.
If the charger output is the same, alsoThe wire charge is much faster.