Electromagnetic induction type primary coil a certain frequency of alternating current generated in the secondary coil by electromagnetic inductionThe current, thereby transferring energy from the transmitting end to the receiving end.
Similarly, wireless charging technology also applies the electromagnetic wave induction principle, and the related AC induction technology, a technology that uses the corresponding coil to send and receive inductive AC signals to charge at the sending and receiving end. Users only need to put the charging device on a "tablet" to charge. Such charging methods have appeared in the past on watches and razors, but at that time they were unable to effectively charge large-capacity lithium-ion batteries.
Durable: The power transmission element is not exposed, so it will not be affected by airWater, oxygen and other erosion; There is no contact, so there is no loss caused by mechanical wear and flaring during connection and separation. Convenient: there is no need to connect with wires when charging, as long as it is placed near the charger, there is no need to occupy multiple power sockets, and there is no trouble of multiple wires winding each other.
Disadvantages of wireless charging efficiency is slightly lower: the general charger also has a transformer, but the wireless charging transformer composed of the transmitting coil and the receiving coil is limited in structure, and the energy transmission efficiency is theoretically slightly lower than that of the general charger. Slow charging speed: Due to the current mobile phone and other receiving devices, most limit the outputThe back of the device can receive the electrical energy transmitted by the wireless charger. The circle is actually a coil that transmits power to the device's battery via a bus bar.
2, wireless charging magnetic field induction area This large circle represents the wireless charging magnetic field induction area in the mobile phone with a protective shell, relying on the built-in magnetic module of the mobile phone is a little powerless, so the built-in magnetic module of the protective shell can compensate for the magnetic force, Apple's official transparent protective shell can clearly see the white circle, This is the MagSafe magnetic module.
3, this is a wireless charger, if your device supportsWireless charging technology, then plug one end of the charger into the power socket only need to put your device screen up on the charger, you can charge the device (please note that the white circle area on the corresponding charger oh, that is the induction area of wireless charging).
4. iPhone Magnetic buckle. The purple circle on the inside of the phone case is magnetic and can be used to charge. The new Magsafe magnetic wireless charging technology equipped with iPhone12 can be simply understood as adding a ring of magnets on the basis of the original wireless charging technology, and making the mobile phone and wireless charging through the attraction of magnetsElectrical appliances are accurately positioned and paired, while effectively avoiding displacement due to vibration, so that the phone is in a more efficient wireless charging state, up to 15W power support.
5, iPhone magnetic buckle design. The purple circle inside the phone case acts as a magnet for easy charging. The Magsafe magnetic wireless charging technology introduced by the iPhone 12 actually adds magnets to the traditional wireless charging technology. This technology realizes the precise docking and pairing of the phone and the wireless charger through the attraction of the magnet, reducing the displacement caused by vibration.
6. And a penThe Huawei Mate40 charging using South Carolina POWER3 charging bank also has no problem, and the wireless charging speed is faster than that of Apple. In addition, the South Carolina POWER3 charging treasure also has a low-voltage wireless charging mode, long press the power button, the LCD screen will appear a circle, then, the charging treasure is in low-voltage wireless charging mode, for some wireless headphones, smart watches and so on.
Wireless charger refers to the use of electromagnetic wave induction principleA charging device, similar in principle to a transformer. There is a coil in the sending end and the 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 of the sending end to generate a current to charge the battery. The wireless charging system mainly uses the electromagnetic induction principle, and the energy transmission is completed through the continuous energy coupling of the coil.
Xiaomi 20W vertical wireless charger Jingdong open for sale, only 99 yuan! Xiaomi's newly launched 20W vertical wireless charger, which hit the shelves on JD.com today, has caught the attention of consumers with its unique double coil design. This charger supports horizontal and vertical placement, eitherDesk or bedside table can be easily adapted to bring users a convenient wireless charging experience.
Millet 20W vertical wireless charger has landed on Jingdong, priced 99 yuan at 10 this morning, millet launched the new 20W vertical wireless charger officially sold on Jingdong. One of the highlights of this product is its unique dual coil design, whether it is placed horizontally or vertically, it can achieve wireless charging, improving the convenience of use.
Its unique design, the use of vertical double coil configuration, whether the mobile phone horizontal or vertical, can easily wireless charging, full of flexibility, with 27W power adapter, up to 20W fast charge power. This charger is highly compatible, whether it is Xiaomi 9 Pro, or Apple, Samsung, Huawei and other brands of mobile phones, you can enjoy different degrees of fast charging services.
Built-in three-dimensional structure, double coil design, can be horizontal and vertical mobile phone charging. Users can use the phone while charging. In addition, the millet vertical wireless charger is compatible with a variety of wireless fidelity, which can not only charge Xiaomi mobile phones, but also provide 10W power for Samsung, Apple and other mobile phones. The effective induction of wireless charging is 4mm, and you can enjoy wireless flash with the phone caseCharge.
It uses a unique vertical double coil design, whether the mobile phone horizontal or vertical, can easily wireless charging, just with 27W power adapter, charging power can be increased to 20W, Xiaomi 9 Pro and other support 20W fast charging, Apple, Samsung, Huawei and other brands of mobile phones can also enjoy different degrees of fast charging experience. In 35 minutes, the Mi 9 Pro can be charged to half capacity.