The addition of wireless charging function makes the charging method of iPhone12 more flexible and convenient. Compared with traditional wired charging, wireless charging does not need to connect cables, reducing interface wear and cable management trouble. In addition, with the development of wireless charging technology, wireless chargers can now achieve faster charging speed, although there is still a certain gap compared with wired fast charging, but it can meet the needs of most users.
iPhone12 is acceptableCharge wirelessly or via wired. The two have their own advantages and disadvantages, magnetic wireless charging is more convenient, direct, gently close to magnetic charging; Wired charging is faster and can achieve PD fast charging, but it is relatively not so convenient. The Apple iPhone8 began to support wireless charging, and the iPhone12 was upgraded to MagSafe magnetic charging.
Advantages of wireless charging iphone12 Compared with wired charging, wireless charging has a more convenient way to use. Users only need to place the phone above the chargerYou can start charging without plugging or unplugging the charging cable. At the same time, wireless charging is also safer, avoiding electrical accidents caused by too long or damaged charging lines. The iphone12 series phones support wireless charging, and users can use wireless chargers that comply with the Qi standard to charge.
The iPhone 12 supports wireless charging. Apple 12 supports MagSafe wireless charging and Qi wireless charging two charging methods, but does not support wireless reverse charging. The power of MagSafe wireless charging is 15W, and the power of Qi wireless charging is 5W. The Apple 12 also supports cable fast chargeThe maximum charging power is 20W and can be charged to 50% in up to 30 minutes, but requires the use of a power adapter with 20 watts or more.
2, the pursuit of higher portability and comfort, you can choose wireless charging wireless charging scene ; In pursuit of faster charging speed and wider application range, you can choose wired charging. The advantage of wireless charging is that it provides higher portability, especially for wearable devicesPrepare, smart home and other fields. However, the charging speed of wireless charging is relatively slow, and the distance between the charger and the device will affect the charging effect.
3, cable charging is good. In the case of the same charging time, the power of the commonly used wired battery charger is 93% after charging, and the power of the wireless charger is 88% after charging. Obviously, there is still a gap in the charging efficiency of wireless chargers, and there is still room for further improvement in technology.
4, wireless charging does not necessarily consume more power than wired charging. Wireless charging technology uses magnetic field induction to achieve the transmission of power without physicalIt is connected (such as a cable) and is therefore considered a more convenient way to charge. However, this technology doesn't actually use any more power than wired charging.
Charging power limited, charging technology between different brands is not interworking between the current mobile phone power update quickly, a day to increase the power, from the original 18W fast charge changeHas become a variety of fast charging power, there are 30W, 45W, 65W, and now there are 120W super fast charging power, which also leads to the current world of wireless charging board a lot of very mixed, if the wrong choice can not experience the full charging power.
Due to the heating problem in the electromagnetic conversion process, taking into account the safety of electricity and other factors, manufacturers have to control the power. This is also a reason for the gradual disappearance of wireless charging. After all, wired fast charge has developed to 120W, and most mobile phones are equipped with fast charge of 60W or more, which has surpassed wireless fast charge, so wireless chargeBecause of the technical requirements of the equipment, the electricity has gradually opened the gap with the wired fast charge.
In addition to the trouble of charging, wireless charging also has a serious defect, that is, the charging efficiency is too low (early products). There is also a heating problem in the electromagnetic conversion process, taking into account the safety of electricity and other factors, manufacturers have to control the power.
Because there is a heating problem in the electromagnetic conversion process, taking into account the safety of electricity and other factors, so in 2021, China's Ministry of Industry and Information Technology issued a technical requirement for wireless charging equipment, which has a clear provision: wireless charging rated powerThe rate shall not exceed 50W. In order to comply with this regulation, manufacturers have to control the power. This is also a reason for the gradual disappearance of wireless charging.
1, but the advantages of wireless charging wireless charging scene are also very obvious. Since there is no need to plug and unplug the charging gun wireless charging scene , the charging convenience is significantly improved, and the touch is reducedElectrical risk. The more critical wireless charging scenario is that if dynamic wireless charging mode is deployed, it can greatly reduce the battery power carried by the electric vehicle, reduce the cost of the vehicle, and completely solve the user's driving range anxiety.
2, secondly, wireless charging technology wants to be truly popular, and it also has high requirements for accurate positioning and intelligence of vehicles. Only when the vehicle is precisely parked in the charging space can the ground system establish a channel with the vehicle's on-board system and achieve charging. In the case of precise positioning, the same floor area, using wireless chargingThe number of electric vehicles will be greatly increased compared with the traditional charging pile, which greatly improves the space utilization rate and charging efficiency.
3, the wireless charging of electric vehicles is very strange to consumers, it is like we look at the concept car is a future scene. However, if it can be achieved, it can greatly alleviate the impact of inconvenient charging.
4, 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. High-power wireless charging High-power wireless charging is often resonant (most electric vehicles charge