Not all mobile phones support wireless charging, and mobile phones with wireless charging technology support wireless charging.
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Wireless charging technology, derived from wireless power transmission technology. 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, the device uses the received energy to charge the battery, and at the same time for its own operation.
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The use of magnets to instantly charge more than one device and without the use of wires at all, this technology allows devices to be charged wirelessly up to a few meters away from the charger. Fujitsu's wireless charging technology uses magnetic resonance to transfer charges in the air between the charger and the device, while coils and capacitors form resonance between the charger and the device.
Wireless charging is not supported by all mobile phones. But there are ways to get wireless charging on all phones. The principle of wireless charging is to use the principle of electromagnetic sensation for wireless charging. How do they achieve it, just like a transformer, there is a coil at each end of the sending and receiving, the sending coil is connected to the wired power supply to generate an electromagnetic signal, and the receiving coil senses the electromagnetic signal at the sending end to generate current to the electrical equipment.