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< ul>2, mobile phone wireless charging refers to the charger and the electrical device between the two can charge the mobile phone without wire connection.
3, wireless charging, also known as inductive charging, non-contact inductive charging, is the use of near-field induction, that is, inductive coupling, by the power supply device (charger) to transmit energy to the power device. If the distance between the charger and the electrical device is far, it is necessary to use resonant inductive coupling design.
4, mobile phone wireless charging technology is completely without the use of wires, the use of magnets for mobile phone charging technology. Mobile phone wireless charging technology,Derived from wireless power transmission technology, magnetic resonance is used to transmit electric charge in the air between the charger and the mobile phone, and the coil and capacitor form resonance between the charger and the mobile phone to achieve efficient power transmission technology.
5, 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 transmit 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.
The use of electromagnetic induction principle for charging equipment, the principle is similar to the transformer, through the transmitter and receiver end set coils, the transmitter coil under the action of power to send electromagnetic signals, the receiver coil receives electromagnetic signals and convert electromagnetic signals into current, so as to achieve the purpose of wireless charging.
Wireless charging, also known as inductive charging, non-contact inductive charging, from wireless power transmission technology, is the use of near-field induction, that is, inductive coupling, by the power supply device (charger) to transmit energy to the power device, the device is usedThe received energy charges the battery and at the same time feeds it for its own operation.
The principle of wireless charging: electromagnetic induction. The charging base and the mobile phone terminal have built-in coils respectively. When the two are close, the transmitting coil generates a certain current in the mobile phone receiving coil based on the alternating current of a certain frequency through electromagnetic induction, thus transferring the electrical energy from the transmitting end to the receiving end, and then starting to supply power to the mobile phone from the charging seat. Magnetic resonance.
Electromagnetic induction wireless charging: This way of charging is the use of a wireless charging board and the induction of magnets on the phone generated between the inductive magnetic fluxAnd hardly anyone cares? '> Why was once a very popular mobile phone "wireless charging", but now almost no one?
1. First, the charging speed is slower than that of wired charging. Now mobile phones are popular fast charging, 40 or 50 watts, 50 or 60 watts of output power, basically more than half an hour can be charged to more than 80%, which is wireless charging can not be compared. Second, portability and versatility are worse than wired charging. Wired charging can simply take a charger, or even not take it, borrow a colleague or sweep a charging bank to meet the needs.
2, although wireless charging is the future of the handAccording to the current development progress, the charging efficiency of wireless charging is still less than that of wired charging. Coupled with the charging trouble, the cost is too high, so that this once popular charging method has become less popular. But anyway, with the continuous change of technology, I believe that one day wireless charging can solve the problem of low conversion rate.
3, the first is the high price of the mobile phone, the price came to 5000 yuan this price, as an Android mobile phone is still a very big challenge, in addition to the current domestic Huawei mobile phone can come to this echelon, other productsBrand Android phones are generally high or top to touch this price range. So as soon as the price is high, the acceptance of the mobile phone market will decline.
4, Big Coke mobile phone: Ding Xiuhong left NetEase, inspired by Lei Jun, founded Big Coke, trying to copy millet's Internet model. However, with a poor understanding of the supply chain, Big Coke's rise and fall was like an entrepreneurial dream that failed to work out. CECT phones: CECT started out with high cost performance and high quality, but it has also become a hotbed of shanzhai phones. The trouble of quality problems made it lose the market eventually.
5, IUNI mobile phone, the bumpy road of Internet brand IUNI, Gionee's sub-brand, tried to challenge Xiaomi, but because of the lack of Internet genes and technical advantages, encountered internal management problems, and was eventually cut by the parent company Gionee, its figure in the fierce competition in the market gradually distant. Xia Xin mobile phone, the end of the former hegemon Xia Xin once led the domestic market, Li Yuchun's endorsement is still fresh in people's minds.
6, Yao Di was also a strong actor, starred in "Midnight heartbeat", "Wang Xiaomi Tame husband", "Naked Marriage era", "Beijing Youth" and other film and television works, beautiful and enthusiastic shapeThe elephant is also popular among netizens. Only later, in addition to some problems in the feelings, ignorance or fearless, anyway, the good cause is buried.
1, hello, of course, the flash charger is fast, VOOC flash charge: VOOC flash charge is the world's first mass-produced commercial fast charge scheme, compared with other fast charge schemes, the technical threshold is higher, VOOC flash charge requires a customized adapter and battery use. OPPO customized a special fitAdapters, batteries, data lines, circuits, interfaces, and for this in-depth development of intelligent all-end five-level protection technology, security is impeccable.
2, 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 the result of my own actual testing.
3, wireless charging and wired charging have their own advantages, the choice of which is better depends on the specific use scenario and needs. Advantages of wireless charging: Convenience: wirelessCharging does not need to plug in or pull out the charging cable, just put the device on the charger to start charging, very convenient. Aesthetic: Wireless charging will not damage the shell design of the device, making the overall device look more beautiful. 4, in theory, although compared with the traditional slow charging is different, but the two ways have specific charging equipment and supporting batteries, so charging will not damage the battery. If you do not believe that you can go to see some of the online evaluation of fast charge and unlimited charging videos, it is enough to prove that the two ways will not affect the normal life of the mobile phone.
5Obviously, there is still a gap in the charging efficiency of wireless chargers, and there is still room for further improvement in technology. It can be seen from the above differences, wireless charging and wired charging two ways have their own advantages and disadvantages, wireless charging can be connected to headphones when charging, but the price is more expensive, and can not be used when charging; The advantage of wired charging is that it is cheap and portable.
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