Advantages: non-contact, no wire, movable. Disadvantages: short distance, small power, poor efficiency. Low efficiency: energy storage and transmission efficiency is less than real contact. Slow charging speed: Due to low efficiency, the charging speed is slow at the same input power.
Aesthetics: Wireless charging makes the charging process of the mobile phone more tidy, there is no messy charging line, which can improve the beauty of the mobile phone. ProtectionInterface: Wireless charging can reduce the number of times to plug and unplug the interface, reduce the risk of interface damage and wear, and extend the life of the phone. Cons: Charging efficiency: Compared with wired charging, wireless charging is less efficient and takes longer to charge, which may lead to an increase in user waiting time.
Advantages: The equipment using wireless magnetic induction charging can be invisible, the equipment wear rate is low, the application range is wide, and the public charging area is relatively reduced; High technical content, easy to operate, can implement relatively long distance radio energy conversion. Disadvantages: Although the equipment has high technical content, the economic cost of the equipment is higher>
Wireless charging methods include electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc. Wireless charging of mobile phones mostly uses the principle of electromagnetic induction. Electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger's power supply coil) will generate a magnetic field, other unenergized coil (mobile phone side of the electric coil) close to the magnetic field will generate current, charging the mobile phone.
The main principle of wireless charging is the electromagnetic induction principle. It is charged in a non-contact manner, transferring electrical energy by generating a magnetic field between the charger and the device being charged. The following details. NoneThe principle of wire charging. Wireless charging technology is mainly based on the principle of electromagnetic induction. Specifically, when the AC magnetic field is generated on the charger, the electric energy is transferred to the device through the action of the magnetic field, and the wireless power supply is realized.
Wireless charging mainly uses electromagnetic induction, magnetic field resonance, radio waves, electric field coupling and other principles. Wireless charging 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.
Electromagnetic induction type: The fundamental principle is the use of electromagnetic induction principle, similar to the transformer, the beginningA certain frequency of alternating current in the stage coil generates a certain current in the secondary coil through electromagnetic induction, thereby transferring energy from the transmission end to the receiving end. The conversion efficiency is high, the cost is cheap, but the transmission distance is short, and it is easy to be affected by the placement.
The principle of wireless charging mobile phone is: electromagnetic induction principle, electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger transmission coil) will generate a magnetic field, other unenergized coil (mobile phone end of the coil) close to the magnetic field will generate current, charging for the mobile phone.
Wireless charging principle is through near-field induction, by wireless chargingThe electrical device conducts the energy to the charging terminal device, and the terminal device converts the received energy into electricity and stores it in the battery of the device. The principle of energy conduction is inductive coupling, which can ensure that there is no exposed conductive interface, which can not only save the messy transmission line between the equipment, but also be safer for electronic devices such as electric toothbrushes that are often in contact with conductive media such as liquids.
1. Huawei p40pro supports wireless charging. Huawei p40pro asA high-end smartphone from Huawei with advanced wireless charging features. The use of this feature is very convenient, users simply place the Huawei p40pro on a compatible wireless charger to start charging, without the need to plug in a traditional charging cable. Wireless charging not only improves the convenience of charging, but also reduces the interface wear problem caused by frequent plugging and unplugging of the charging cable.
2. Huawei p40pro can be charged wirelessly. Huawei P40Pro mobile phone supports wireless charging, 27W wireless super fast charge, and wireless reverse charging. The battery capacity is 4200mAhType value), support a maximum of 40W super fast charge, compatible with 5V/5A or 5V/5A super fast charge, compatible with 9V/2A fast charge.
3, Huawei P40Pro supports wireless charging, the mobile phone has a built-in 4200mAh large-capacity battery, using the mobile phone to play games, watch movies, listen to music has a long battery life, and the mobile phone supports 40W wired flash charge 27W wireless fast charge reverse charging.