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无线充 发热hanxin360 2024-05-22 21:47 40
1. Wireless charging heat is a normal phenomenon when charging, but if it is hot, pay attention to whether there is a problem with product quality. The original wireless charger do...

Wireless charging problems will cause charging heat?

05/22/2024 21:47:02无线充新闻

1. Wireless charging heat is a normal phenomenon when charging, but if it is hot, pay attention to whether there is a problem with product quality. The original wireless charger does not rule out possible faults. In addition, when charging, pay attention to whether the power of the wireless charger matches the mobile phone phase.

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2. Use the first way to achieve wireless charging, but the implementation process also encountered technical problems: Due to the special structure of the mobile phone, a battery must be installed in the mobile phone, which is actually the nightmare of the development of wireless charging technology - when the magnetic field emitted by the transmitter coil passes through the battery, the metal inside the battery will generate induction current, usually we call this \"eddy current\

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3. Therefore, in order to achieve wireless charging of the mobile phone, a \"metal barrier\" device must be placed between the power receiving coil and the mobile phone battery to block the magnetic field line and avoid the magnetic field line reaching the battery. The usual technique is to use a high permeability ferrite for this \"metal-isolating\" device.

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4. Unfortunately, the performance of ferrite is still not able to meet the needs of wireless power transmission, at the frequency of 100KHz, usually used are manganese zinc ferrite, because manganese zinc ferrite has a high initial permeability.

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5. However, because the resistivity of manganese zinc ferrite is small, it will still produce eddy currents in ferrite, resulting in ferrite heating. In the transformer design of switching power supplies, this part of the energy converted into heat by eddy currents is called \"iron loss\" or \"magnetic loss\". Touch the transformer that is working in the switching power supply, you will find that it is relatively hot, and even some may be very hot.


Wireless charging problems may cause the charger to heat, so usually when the mobile phone is charging, we must pay attention to what abnormal situation occurs in the battery, we must power off in time, the battery belongs to 150 heat is an abnormal phenomenon, we must control it, otherwise it will be angry, and then more dangerous. Can help you.


Wireless charging problems will not lead to charging heat, only will not charge into the electricity


No, it'll just cause you to lose your charge.