1, the charger is divided into linear chargingDevice, switch charger and wireless charger. First of all, the linear charger is the earliest and simplest type of charger. It works by reducing the alternating current to a low voltage suitable for equipment use through a transformer, and then converting the alternating current to direct current through a rectifier circuit. The advantage of the linear charger is high stability and low cost, but the disadvantage is that the charging efficiency is relatively low, and it is easy to heat.
2, the charger is mainly divided into the following types: linear charger, switch charger, wireless charger and fast charger. First of all, the linear charger is one of the earliest charger types, and its working principle is relatively simpleMainly through the transformer to convert alternating current into low-voltage direct current, and then through the linear voltage regulator circuit for voltage regulator output. This charger costs less, but the charging efficiency is not high, and it is easy to heat.
3, the charger is mainly divided into the following three kinds: linear charger, switch charger and wireless charger. First of all, the linear charger is one of the first charger types to appear. Its working principle is relatively simple, mainly through the transformer to convert alternating current into low-voltage direct current, and then after rectification and filtering output to charge the device. The advantages of linear chargers are good stability and low cost, but the disadvantage is that the charging efficiency is relatively highLow, high heat.
Principle of wireless charging: electromagnetic induction. The charging base and the mobile phone terminal have built-in coils respectively. When the two are close, the generating coil generates a certain current in the mobile phone receiving coil based on a certain frequency of alternating current through electromagnetic induction, thereby transferring the point energy from the originating end to the receiving end, and then starting to supply power to the mobile phone from the charging seat. Magnetic resonance.
Electromagnetic induction type: 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 the electricityMagnetic induction generates a certain current in the secondary coil, which transfers energy from the transmission end to the receiving end. The conversion efficiency is high, the cost is cheap, but the transmission distance is short, and it is easy to be affected by the placement.
The basic principle of wireless charging is to convert the current into a magnetic field, which is transmitted through the air and then converted into a current to be transmitted to the intelligent terminal. When the system works, the input end converts the AC mains into direct current through the full bridge rectifier circuit, or uses the 24V direct current end to supply power to the system directly. 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 system mainly uses the principle of electromagnetic induction. Wireless charger refers to the charger that does not need to be connected to the terminal device that needs to be charged without the traditional charging power cord, using the latest wireless charging technology, through the use of the magnetic field generated between the coils, the magic transmission of electrical energy, inductive coupling technology will become a bridge connecting the charging base station and equipment.
Using the principle of electromagnetic induction for charging equipment, the principle is similar to the transformer, through the transmitter and receiver end set coils, the transmitter coil under the action of power to send electromagnetic signals, the receiving end coil to receive electromagnetic signals and electromagnetic signals turnChange to current, so as to achieve the purpose of wireless charging.
Electromagnetic induction wireless charging: This way of charging is to use the inductive magnetic flux generated between a wireless charging board and the induction magnet on the mobile phone, and convert this magnetic force into an electric power for current transmission.
Wireless charging methods include electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc. Wireless charging of mobile phones mostly uses the principle of electromagnetic induction.Electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger's power supply coil) will generate a magnetic field, other unenergized coil (mobile phone side of the electric coil) close to the magnetic field will generate current, charging the mobile phone. As shown below.
Wireless charging system mainly adopts the principle of electromagnetic induction. Wireless charger refers to the charger that does not need to be connected to the terminal device that needs to be charged without the traditional charging power cord, using the latest wireless charging technology, through the use of the magnetic field generated between the coils, the magic transmission of electrical energy, inductive coupling technology will become a bridge connecting the charging base station and equipment.
1, the secondary winding is broken, the wireless charging coil has two windings, one is the main winding, one is the secondary winding, after the secondary winding is damaged, it will cause the main winding to heat, and the output has no voltage.
2, coil heating is normal. You need to increase the diameter of the copper wire. There's too much current in there.
3, mobile phone charging heat is a common phenomenon, is charging, the current and voltage is larger, so the temperature will be higher than ordinary charging. If you are doing wireless charging, because there will be energy loss during wireless transmission, thenGenerate a certain amount of heat, there will be a phenomenon of heat when wireless charging, this is normal. 4, in summary, wireless charging mobile phone hot is a normal phenomenon, mainly caused by the working principle of wireless charging, energy conversion efficiency, mobile phone heat dissipation design and use of the environment and other factors. When using wireless charging, it is recommended to pay attention to the heat dissipation of the phone and avoid charging in a high temperature or an airtight environment to ensure the safety and performance of the phone.
5, it is recommended that you replace the original charger, and check whether there is software running in the background of the phone, if there is an attempt to close. Use the original charger,The charging and heating of the phone is abnormal, which may be a fault of the phone. It is recommended that you back up important data on the phone first and restore the phone to factory Settings. If the phone is still hot after the factory is restored, you can take the invoice repair card to the nearby service center, and professional engineers will help you detect and repair.
This is the end of the introduction of the working principle of the wireless charging switch tube and how to use the wireless charging socket, do not know that you find the information you need? If you want to know more about this, remember to follow this site. < / p >