2, the first is electric field coupling charging. First of allCell phones and charging devices have two sets of asymmetrical electric dipoles. When they are close together, they produce a coupling phenomenon and achieve the transmission of current. The transfer efficiency is good, but there are distance restrictions, and large capacity charging stations are required. The second type is magnetic resonance charging, which is different from the above electric field. This method generates electrical energy through the resonance of the same frequency magnetic field generated by the resonators at both ends.
3, electric field coupled wireless charging, the principle is to transmit power by coupling two groups of asymmetric dipoles along the vertical direction of the induced electric field generated. Suitable for short distance charging, high conversion efficiency, the position can not be fixed; However, the disadvantage is that large equipment is requiredThe power is also small.
Wireless fast charging is a combination of wireless charging technology and fast charging technology, and the mainstream models on the market now 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 the use of electromagnetic induction principleThere is a coil in the sending and receiving end, the sending end coil is connected to the wired power supply to generate an electromagnetic signal, and the receiving end coil senses the electromagnetic signal at the sending end to generate a current to charge the battery, which can be simply understood as a transformer without a magnetic core. Compared with wired, wireless charging has less loss to the battery, and wireless charging technology is more convenient and has lower charging heat.
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 a fast charging function, straightIt does not require a data cable to charge the phone, and only requires the user to put the phone near the wireless charger to charge it directly. The following is a detailed example to introduce this wireless charging method.
And now the wireless fast charging technology is more and more developed, most of the mobile phones support the qi standard, that is, the manufacturers will support qi wireless fast charging in the introduction. You need a wireless charging chassis, plus an 18-watt or 30-watt fast charger. The second is that the phone needs to support the function in order to achieve the so-called wireless fast charge. Manufacturers are also increasingly developing this technologySwift and fast.Wireless fast charging is a convenient charging technology. Wireless fast charge through magnetic resonance, electromagnetic induction and other technologies to achieve wireless charging function. Compared with traditional wired charging, it does not need to connect the cable between the phone and the charger, just place the phone on the charger to start charging. This technology eliminates the trouble of plugging and unplugging the data cable when the user is using the phone, and brings a more convenient and efficient charging experience to the user.
Intelligent wireless fast charging is the use of Qi technology (the world's first standardization organization to promote wireless fast charging technology launched the "wireless fast charging" standard), for the marketThe wireless fast charging of most mobile phones perfectly matches the wireless fast charging protocol of Apple/Samsung/Huawei, and the wireless fast charging efficiency is the same as the wired charging efficiency of some mobile phones (10W). I installed the East Arrow LUXURIES, the quality and reputation can be.
Factors affecting battery life Although some people worry that wireless fast charging will harm battery life, in fact, wireless fast charging itself will not. Battery lifeLife is affected by a variety of factors, such as faulty charging habits (excessive discharge and frequent charging), high temperatures and non-compliant charging equipment. Lithium batteries have no memory effect, and appropriate "use with charge" is beneficial to battery health.
However, wireless fast charging does not directly lead to shorter battery life. Battery life is affected by a variety of factors, lithium batteries have no memory effect, frequent charging, power off does not affect. What can really damage a battery are wrong charging habits, high temperatures, and substandard charging equipment. For example, OPPO Ace2 uses 40W wireless flash charging technology, through the series of dual cells and air cooling technologyIt takes into account the charging efficiency and safety.
Wireless charging bank does not harm the mobile phone battery. Because the working frequency of wireless charging is now below 1M, it will not affect the signal of the mobile phone. On the contrary, wireless chargers not only reduce the use of data cables, but also make charging methods more free and safer. It is basically the same as wired charging, but the rate is lower, but the wireless charger still has a high energy conversion rate, which saves energy consumption more.
Electromagnetic induction, magnetic resonance, wireless fast charge will not affect the life of the battery.
In theory,Wireless fast charge and mobile phone fast charge, are specifically designed for mobile phones, there is no harm to the mobile phone battery, for this point still need to understand. However, when the user chooses a wireless charger, it is best to choose a charger that is compatible with the mobile phone, or choose a charger produced by a regular manufacturer.
Long-term use of radio charging will not affect the phone. Wireless charging is characterized by no charging line restrictions, affected by the nickel-metal hydride battery, this battery has memory, the best way to use is to reach the best state of the battery after charging. There is no cable for wireless chargingThe bondage, each charge with the release, reduce the complexity of plugging and unplugging data cable.