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The Working Principle Of Wireless Charger

- Jan 27, 2018 -

Physicists have long known that energy is effectively transmitted between objects of the same two resonant frequencies, and that interactions between different frequencies are weaker. Singers singing can be fitted with a different amount of water in the bottle of a shattered, without affecting the other bottles that is the truth. It's also like when we're on a swing, just sitting on top and letting the sagging legs swing in sync can give the swing momentum. Wireless charging technology is the use of this principle. Similarly, the wireless charging technology also uses the electromagnetic wave induction principle, and related communication induction technology, in the sending and receiving end with the corresponding coil to send and receive the induction of the exchange signal to carry out the charge of a technology, users only need to put the charging device on a "flat" on the charge, Such charging methods used to appear on watches and razors, but were not able to charge large capacity lithium-ion batteries efficiently.

The wireless charging system mainly uses the electromagnetic induction principle, through the coil carries on the energy coupling realizes the energy transmission. As shown in the diagram, when the system is working, the AC mains will be converted into direct current by the whole bridge rectifier circuit, or the system can be powered directly by the 24V DC electric Terminal.

After the Power management module output DC power through the 2M active Crystal inverter conversion into high-frequency alternating current supply of primary windings. Through the coupling energy of 2 inductance coils, the current of the secondary output is changed into DC electricity to charge the battery by accepting the conversion circuit.

The changing magnetic field will produce a changing electric field, changes in the electric field will produce a change in the magnetic field, its size is related to their rate of change, and the sine function of the change rate is another sine function, so the electromagnetic wave can be spread out, and the formation of induction voltage and magnetic flux changes, so the internal changes in the coil of the magnetic field generated To complete the charging process.

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