1, the charging method is as follows: to have smart devices that support wireless charging: Currently, the devices that support wireless charging mainly include mobile phones, watches, headphones, etc., and the equipment should have Qi standard, that is, the standard that can be used with the charging nightstand. Place the device on the charging area of the charging nightstand: The charging area refers to the designated position or surface of the nightstand, there will be a small sign or label indicating the wireless charging area.
2, wired charging: Connect the smart device to the USB interface of the charging nightstand or the power socket for charging. Wireless charging:The device that supports wireless charging can be charged by placing it on the charging area of the smart bedside table.
3, this panel is a coil combination, so that it is convenient for the phone to be placed in any position on the panel can be charged, without alignment. Its internal structure is roughly as follows: the shortcomings are not without, because the multi-coil wireless charging board product has as many as a dozen or even several wireless charging coils built in, and the problem in heating cannot be underestimated.
4, wireless charging is generally used in these four times. When sleeping at night, on the bedside table, you can charge it as soon as you put it, and you can use it without pullingPlug, quite convenient, wake up in the morning the phone is fully charged, full of happiness.
Huawei Super Fast Charge wireless charger (MAX 27W) : Place the center of the earphone box coil (the lower part of the earphone is close to the back of the LED light, not in geometryAlign with the center of the wireless charger coil, and the indicator light is charged.
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Huawei Pura70 supports wireless charging. Huawei Pura70 is a high-end smartphone with a variety of advanced technology featuresSex. Wireless charging technology is a common feature of modern smartphones, and Huawei Pura70 is also equipped with it. Wireless charging technology introduction: Wireless charging is a charging method realized through the electromagnetic field induction principle, and can provide power to the device without physical connection.
Other brands such as vivo, OPPO, etc., their high-end models are also gradually introducing wireless charging function. Advantages of wireless charging Wireless charging technology brings great convenience to mobile phone users. Using wireless charging, users do not need to carry a lot of cables, just place the phone on the charging pad, can achieve charging. In addition, noneWhat electricity is the receiving coil? '> What is the receiving coil for wireless charging?
Wireless charger working principle Combination coil wireless charging : The electromagnetic induction principle combination coil wireless charging , through the coil energy coupling to achieve energy transfer. When the system is working, the input end converts the AC mains through the full bridge rectifier circuit into DC combined coil wireless charging , or uses the 24V DC end to directly supply power to the system. Output after the power management moduleDirect current is converted into high frequency alternating current through 2M active crystal oscillator inverter to supply the primary winding.
Wireless charging mobile phone principle is combination coil wireless charging : Electromagnetic induction principle, electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger of the coil) will generate a magnetic field, the combination coil wireless charge his unenergized coil (mobile phone end of the coil) close to the magnetic field will generate current, charging the mobile phone.
electromagnetic induction. Charging dock and mobile phone terminal are built inWhen the two are close to the coil, the generator coil generates a certain current in the mobile phone receiving coil based on a certain frequency of alternating current through electromagnetic induction, so as to transfer the point energy from the originating end to the receiving end, and then start to power the mobile phone from the charging seat. Magnetic resonance.
In practical applications, the wireless charging system is usually composed of the transmitter and the receiver. The transmitting end includes the control IC, the drive IC, the transmitting coil and the resonant capacitor, which are responsible for generating and controlling the emission of the magnetic field. The receiving end includes the receiving coil, the rectifier bridge, the charging chip and other components, which are responsible for receiving the magnetic field and converting it into electrical energy to charge the battery.
At present, wireless charging technology mainly has electromagnetic induction, magnetic resonance, radio wave, three basic ways, different wireless charging methods have different characteristics. Electromagnetic induction: The fundamental principle is to use the principle of electromagnetic induction, similar to a transformer, the primary coil of a certain frequency of alternating current, through electromagnetic induction in the secondary coil to produce a certain current, thereby transferring the energy from the transmission end to the receiving end.
Electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger transmission coil) will generate a magnetic field, other unenergized coil (mobile phone side of the electric coil) close to the magnetic fieldIt generates an electric current that charges the phone. Electromagnetic induction: A certain frequency of alternating current in the primary coil generates a certain current in the secondary coil through electromagnetic induction, thereby transferring energy from the transmission end to the receiving end.
Notes for winding coils mainly include the selection of coils with different frequency characteristics, the selection of magnetic cores of different materials, and the consideration of parameters such as inductance and distributed capacitance of the coil. In the wireless charging receiving coil, according to itsThe working characteristics of the audio segment usually choose silicon steel sheet or permalloy as the core material.
Finally, after confirming, put the phone on the wireless charger, the charging prompt will be displayed, you can combination coil wireless charging . Wireless charging Combination coil wireless charging : Do not place metal objects, magnetic stickers, magnetic cards and other foreign objects between the mobile phone and the wireless charger (such as the car magnetic bracket iron attached to the back of the mobile phone), the mobile phone may not be charged properly or overheat may cause damage. Please place the phone correctly. NoneExcessive deviation of the wire charging coil may lead to low charging efficiency or failure to charge.
Things to pay attention to when winding: coils with different frequency characteristics, coils with different cores with different data and different operating frequencies have different characteristics. In the range of hundreds of thousands of Hertz to several megahertz, such as the coil of the medium wave broadcast segment, usually choose ferrite core, and wound with multiple strands of insulated wire. When the frequency is higher than a few megahertz, the coil uses high-frequency ferrite as the core, and hollow coils are also commonly used.
Wireless charger Working principle The wireless charging system mainly adopts the principle of electromagnetic induction, and carries out energy coupling through the coilThe transfer of energy. As shown in the figure, when the system works, the input end converts the AC mains into direct current through the full-bridge rectifier circuit, or uses the 24V DC end to directly supply power to the system. After passing through the power management module, the output direct current is converted into high-frequency alternating current through the 2M active crystal oscillator inverter to supply the primary winding.
Wireless charging base increase coil, or do not modify it, you increase coil not only did not play a good effect but affect the speed of charging, increase combination coil wireless charging the coil is equal to increase combination coil wireless charging The resistance, it will make the current slow, the coil is proportional to the winding, too much too little can not, the coil winding less, there will be damage to the parts, resulting in parts burned spark, because do not be free to modify the wireless charging base.