1, the 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.
2, the basic principle of wireless charging is to convert the current into a magnetic field, and the magnetic field is transmitted through the air and converted into a current to be transmitted to the intelligent terminal. When the system works, the AC mains at the input end is converted by the full bridge rectifier circuitDirect current, or use 24V DC terminal directly to 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. 3, wireless charging is also known as inductive charging, non-contact inductive charging, from wireless power transmission technology, is the use of near-field induction, that is, inductive coupling, by the power supply device (charger) to transmit energy to the power device, the device uses the received energy to charge the battery, and at the same time for its own operation.
4, there is no strong radiation, no effect on the human body! Principal originThe reason is: the way of wireless charging is electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc. Most of the wireless charging of mobile phones uses the principle of electromagnetic induction.
5, wireless charging is also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, it is not necessary to transmit electricity to the device like the traditional wired charger, but the device that needs to be charged can be charged by contacting the wireless charging base.
6, the principle of wireless charging technology is "magnetic electricity", simply put, through the charging device and mobile phone equipment installed on the two "magnetic equipment.The active crystal oscillator is converted into high frequency alternating current to supply the primary winding.
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.
Wireless charging, also known as inductive charging, non-contact inductive charging, derived from wireless power transmission technology, is the use of near-field induction, that is, inductive coupling, by the power supply equipment (chargeAn electrical device transmits energy to an electrical device, which uses the received energy to charge a battery and at the same time for its own operation.
Generally seen wireless charging, the use of the "current magnetic effect" and "electromagnetic induction" principle. In 1819, Danish scientist Elster observed that if there is an electric current on a wire, a magnetic field will be generated around it, which can deflect the north finger. Later generations have further found that the wire is encircled into a ring, or even wound into a coil, and the magnetic field generated will be stronger and more concentrated, which is called the "current magnetic effect."
No strong radiation, not to the human bodyAny impact! The main principle is: the way of wireless charging is electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etc. Most of the wireless charging of mobile phones uses the principle of electromagnetic induction.
Wireless charging, also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, it is not necessary to transmit electricity to the device like the traditional wired charger, but the device that needs to be charged can be charged by contacting the wireless charging base.
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, also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, does not need to transmit electricity to the device like the traditional wired charger, butThe device that needs to be charged can be charged by touching the wireless charging base.
It is the first generation of mobile phone wireless charging, and the technology is mature, but it can only be single-to-single short-range charging (qi standard, within 1cm, within 5 watts), rather than single-to-multiple charging like WiFi.
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 the connection of the charging base stationAnd equipment bridge.
1. The steps are as follows: First connect the USB data cable to the end of the mobile phone wireless charging coil emission with scissors or knife to cut the wireless charging coil emission , and then the long end of the data cable to the incision to carve a small section, at this time you will see green, red, white, black four lines, the green and black thatCut off two strips and cut off a small section of insulation between the red and green ones to expose the copper wire.
2, open the back cover of the smartphone, and then take out the wireless charging receiver ready to wireless charging coil transmission ; Or the protective layer of double-sided tape peel; The next task is to connect the receiver's metal shock to the smartphone battery wireless charging coil emission , which is the most difficult part of the whole process. However, as long as you are careful to ensure that each metal shock is connected together, it can be done.
3, question 1: How to make wireless charger? There are many ways to use wireless chargers, mainly to see how the reception is installed. But no matter what the product is close, the operation method is placed on the launch plate. Take the mobile phone for example, the current mobile phone is generally added a mobile phone jacket, in this jacket there is a wireless receiver module. The phone can be charged wirelessly with this jacket.
1, the way of wireless charging has electromagnetic induction, magnetic commonVibration, electric field coupling and radio wave transmission, 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. 2, wireless charging is also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, it is not necessary to transmit electricity to the device like the traditional wired charger, but to contact the device that needs to be charged with the wireless charging baseYou can charge it. 3, wireless charging is also known as inductive charging, non-contact inductive charging, from wireless power transmission technology, is the use of near-field induction, that is, inductive coupling, by the power supply device (charger) to transmit energy to the power device, the device uses the received energy to charge the battery, and at the same time for its own operation.
4, mobile phone wireless charging refers to the charger and the electrical device between the two can charge the mobile phone without wire connection.
5, the basic principle of wireless charging, is to convert the current into a magnetic field, and the magnetic field is transmitted through the air and convertedFeed current to 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.
6, mobile phone wireless charging technology is completely without the use of wires, the use of magnets for mobile phone charging technology. Mobile phone wireless charging technology, derived from wireless power transmission technology, uses magnetic resonance to transmit charge in the air between the charger and the mobile phone, and the coil and capacitor form resonance between the charger and the mobile phoneTechnology for efficient transmission of electrical energy.
2, the same size. Same size and as close as possible,Otherwise, it won't work. The conversion efficiency is low.
3, the electromagnetic coil is of great importance to the improvement of wireless charging efficiency. The electromagnetic coil used in the field of wireless charging is also related to the improvement of the wireless charging efficiency of the entire system, but the coil itself has power loss. Wireless charging coils need to be arranged on both the transmitter and the receiver, and low loss coils can greatly improve the efficiency of wireless charging.
4, the disadvantages of wireless charging efficiency is slightly lower: the general charger also has a transformer, but the wireless charging transformer composed of the transmitting coil and the receiving coil is limited in structure, and the energy transmission efficiency is theoretically omittedLower than normal charger. Slow charging speed: Due to the current receiving devices such as mobile phones, most of the wireless charging coils transmit the input power, so the charging speed is slow.
5, Qi wireless charging system consists of a base station and mobile devices, the base station is the charging base we often see, the mobile device is the mobile phone through the principle of electromagnetic induction charging base on the magnetic induction coil to convert electrical energy into electromagnetic waves, the magnetic induction coil on the back shell of the mobile phone then converts electromagnetic waves into electrical energy to charge the battery.
6, but wireless charging technology is new after allCharging technology, to the wireless charger of Maiyuanke, many people will worry that wireless charging technology will be like the original Wi-Fi and mobile phone mast just appeared, in fact, the technology itself is harmless. Maiyuan's wireless charging technology uses magnetic resonance to transfer charge in the electric and magnetic fields between the charger and the device, while the coil and capacitor form a resonance between the charger and the device.