1, low efficiency: energy storage and delivery efficiency is less than real contact. Slow charging speed: Due to low efficiency, the charging speed is slow at the same input power. High cost: The charger needs to have an electronic circuit to promote the wireless coil, and the electrical device needs to have an electronic device to change the power, both also need to have a wireless coil, so the cost is higher than the direct contact.
2. Mobile phone NoneAlthough the technical content of the equipment is high, the economic cost of the equipment is higher and the maintenance cost is large. Because of the realization of long-distance high-power wireless magnetoelectric conversion, the energy consumption of the equipment is high. As the distance and power of wireless charging devices increase, the loss of idle work will be greater.
3, the harm is relatively small can be ignored, wireless charging technology has appeared in the 19th century, but the popularity of mobile phone applications is not high. It uses the principle of "magnetic resonance" to allow the wireless charger to transmit an electric charge through the air to the phone's battery. Many wireless chargers on the market do not indicate the radiation value, for noThe electromagnetic radiation standard of the line charger has not yet been introduced.
4, in addition, it also has anti-theft function, when the distance and connected mobile phone more than 30 meters, it will issue a prompt tone to remind the user. Smarty Ring supports both Android and iOS devices and connects to devices via Bluetooth Low Energy. The company says it can last up to 24 hours and is charged wirelessly. Although this is a novel device, its drawbacks are also very obvious.
5, the first: iQOO Pro 5G version - from 3798 yuan just saw a reply that 3KBudget has nothing to do with 5G, but it doesn't. At present, the first batch of commercial 5G mobile phones in China has been listed, 5G is completely into the life of ordinary consumers, if it is at this time node to change the mobile phone, you can consider 5G. iQOO Pro 5G starts at 3798 yuan, and the cheapest 5G mobile phone at present is also within the budget range.
6, battery life is indeed a major drawback of the current smart machine, when the battery technology process has not made great progress, the processor is getting faster and faster, the screen is getting larger and larger, giving the original fragile battery life more pressure. The LG G3 is equipped with the 3000m/h2>
As of December 12, 2019, HUAWEI has the following mobile phones supporting wireless charging: HUAWEI Mate 30 5G, HUAWEI P30 Pro, HUAWEI Mate 20 Pro (UD), Huawei Mate RS Porsche Design.
Apple, Huawei, Xiaomi. Apple: The iphone supports wireless charging models are iPhoneX series, iPhone11 series, iPhone12 series, and iPhone13 seriesAnd iPhone II and later versions. These Apple phones have induction coils added to the back, and can be charged using wireless magnetic induction charging devices.
Mobile phones that support wireless charging are: Millet Samsung S10 series, millet MIX2S, Nut R millet MIX2S, Huawei Mate20PRO Millet 9 mobile phone was released on February 20, 2019, in addition to Qualcomm 855 chip this product is making rapid progress in wireless charging. The Mi 9 mobile phone is equipped with the world's first 20W wireless flash charge, which is comparable to the wired fast charge.
Mobile phones that support wireless charging are: Huawei Mate40 Pro, Huawei Mate40E, Huawei Mate 30 Pro 5G, Huawei P40 Pro, Huawei Mate 30 Pro 5G, Huawei Mate 30 Pro 5G, Huawei P30 Pro, etc.
iPhone11 as Apple's flagship iPhone11 also supports wireless charging, but relative to domestic mobile phones, the charging rate may be slower, but other aspects are still very strong, such as iPhone11 has a variety of different colors to choose from, but also the new addition of green and purple, very fresh.
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 to use the inductive magnetic flux generated between a wireless charging board and the induction magnet on the mobile phone, and convert this magnetic force into an electric power for current transmission.
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.Charge your phone. As shown below.
The principle of mobile phone wireless charging is to use electromagnetic induction technology to transfer electric energy through the magnetic field in the air to the inside of the mobile phone, so as to realize the charging of the mobile phone. Specifically, wireless charging devices mainly include two parts: transmitter and receiver. The transmitter generates a high-frequency alternating magnetic field through a built-in coil, and the coil inside the receiver receives the magnetic field energy and converts it into electricity, thus charging the phone.
Apple straightened. Direct charge can be charged fast, but also can play at the same time, wireless charging time is long and slow, and wireless charging can be done at night when the mobile phone is not used. This wired charging will be better, some, because you wired charging, it will charge more efficiently, wireless charging, it will be slower. There is nothing good or bad. As long as the battery is used, the battery life will be lost, which is a common problem of every mobile phone, and it is inevitable.
This wired charging will be better, some, because you wired charging, it will charge more efficiently, wireless charging, it will be slower.
I thinkApple mobile phone or wired charging is better, or more convenient, if you use wireless charging, in fact, in the wireless charging device to the back but also plug in a wired charging power line, it can be powered, so I think wireless charging is still a chicken chicken a product, but you do not have to help your phone plug in the charging interface every time.
Apple straightened. Direct charge can charge fast, but also can play at the same time, wireless charging time is long and slow, and you can wireless when you do not use your mobile phone at nightCharge up. The iPhone uses lithium-ion batteries, which have the advantages of fast charging, long lasting use, higher power density and the ability to provide longer battery life in a lighter volume.
Apple 13 wireless charge is good or straight apple 13 wireless charge is good or straight apple straight. Direct charge can be charged fast, but also can play at the same time, wireless charging time is long and slow, and wireless charging can be done at night when the mobile phone is not used. This wired charging will be better, some, because you wired charging, it will charge more efficiently, wireless charging, it will be slower. nothingGood and bad.
Apple mobile phone general we are better with direct charging, its charging effect is also a direct point, wireless charging is now a relatively novel way, but I still accept wired charging is better. I always feel that the money will charge the efficiency of the battery will be higher. The iPhone12 can be charged wirelessly or via wired.