Wireless charging technology is not through a wire but rather a power transfer of technology through the medium of air, the main principle is the use of magnetic resonance in the air transmission charges between the charger and the device, through the coil and a capacitor is formed between the charger and the device resonance, to achieve energy efficient transmission.
Wireless charging technology is divided into three ways, namely electromagnetic induction, capacitive and magnetic resonance induction ceremony. Three wireless charging mode, electromagnetic induction is the most mature technology, its principle is to use electromagnetic induction the transmitter coil and the receiver coils to achieve power transmission, the use of the transmitter power supplied electrical energy is converted to magnetic energy, then the receiver coil by electromagnetic induction magnetic energy is converted to electrical energy, equipment to provide charging energy to be charged, this charging method is somewhat relatively low cost and can achieve miniaturization, ease of widely used in various electronic devices.
Because of the soft magnetic alloy having a high initial permeability characteristics, such as 1J79,1J80 and 1J85. So it is very suitable for the manufacture of electromagnetic induction transmitter and receiver coils.
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