1. NoneThe basic principle of wire 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.
2, 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, and uses the latest wireless charging technology.By using the magnetic field generated between the coils to magically transfer electrical energy, inductive coupling technology will become a bridge connecting the charging base station and the device.
3, the principle of wireless charging technology is "magnetic electricity", simply put, through the charging device and the mobile phone device installed on the two "magnetic equipment" mutual induction and formation of current. At present, products supporting wireless charging have appeared in mobile phones, electric vehicles, smart furniture and other fields. Among them, in the mobile phone industry, the "Qi standard" is the most common, and Qi labels are often used in the packaging of many mobile phones and wireless chargers.
4Generally, wireless charging uses the principle of "current magnetic effect" and "electromagnetic induction". 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."
5, there is no strong radiation, no effect on the human body! The main principle is: the way of wireless charging is electromagnetic induction, magnetic resonance, electric field coupling and radio wave transmission, etcElectricity is converted into high frequency alternating current by 2M active crystal oscillator 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.
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. The battery is charged after being chargedThe DC power output after the source management module is converted into high-frequency AC power through 2M active crystal inverter to supply the primary winding. By coupling the energy of the two inductors, the electrical output of the secondary coil is changed into direct current through the receiving conversion circuit to charge the battery.
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 power supply coil) will generate a magnetic field, other unenergized coil (mobile phone side of the electric coil) close to the magnetic fieldIt creates an electric current to charge the phone. As shown below.
Wireless charging also has a super practical advantage: when the phone calls, you can pick up the phone directly from the charger to answer, completely isolated from the power supply, completely eliminating the security risks of charging while answering the phone. Charge on the go No more fear of running out of battery when you leave the house! Wireless charging allows you to charge your phone anytime, anywhere. Just place your phone gently on the charger and enjoy charging as you goThe convenience of...
The car comes with wireless charging technology to make charging more convenient. With a car wireless charger, the operation process is fairly straightforward. First of all, the car wireless charger is firmly placed in the right place in the cab! Then connect the data line of the wireless charger to the cigarette lighter interface of the car, this step is the basis to ensure that the charging line is unimpeded.
Audi Q5 wireless charging technology makes charging more convenient, only need to place the phone in the designated position of the vehicle, no need to connect the data cable to charge. The principle of wireless charging is not complicated, it is based on middle school physicsThe electromagnetic induction technology. However, due to the lack of a unified standard, wireless charging technology has not been widely used.
1, so as a magnet crazy wireless charging design Apple wireless charging design , thought of the use of magnetic absorption to let the iPhone12 active adsorption chargeThe coil position of the appliance wireless charging design , the coil periphery of the iPhone12 is covered with a circle of magnets wireless charging design , so that each charge does not require the user to slowly align the coil, Just follow the pull of the magnet and put the iPhone12 on it.
2, the addition of wireless charging function makes the charging method of iPhone12 more flexible and convenient. Compared with traditional wired charging, wireless charging does not need to connect cables, reducing interface wear and cable management trouble. In addition, with the development of wireless charging technology, wireless chargers can now achieve faster charging speed, although there is still a certain gap compared with wired fast charging, but it can meet the needs of most users.
3. The iPhone12 can be charged wirelessly or via wired. The two have their own advantages and disadvantages, magnetic wireless charging is more convenient, direct, gently close to magnetic charging Wireless charging design ; Wired charging is faster and can achieve PD fast charging, but it is relatively not so convenient. magneticThe Apple iPhone8 began to support wireless charging, and the iPhone12 was upgraded to MagSafe magnetic charging.
4, apple straight. Direct charge can be charged fast, but also can play at the same time, wireless charging time is long and slow, and wireless charging can be done at night when the mobile phone is not used. However, the conversion efficiency is best at about 80%, and the remaining electrical energy can only be converted into heat, so the heat of wireless charging has been a big problem. High-power wireless chargers also need to be paired with active cooling fans.
5, Apple 12 support wireless charging function. Apple 12Support MagSafe wireless charging and Qi wireless charging two charging methods, but does not support wireless reverse charging. The power of MagSafe wireless charging is 15W, and the power of Qi wireless charging is 5W. The Apple 12 also supports wired fast charge, which has a maximum charge of 20W and can be charged to 50% in up to 30 minutes, but requires a power adapter of 20 watts or more.
6, Apple iPhone12 supports MagSafe wireless charging and Qi wireless charging standards, MagSafe wireless charging power is 15W, Qi wireless charging powerHold 5W. In the design of the MagSafe charger, a magnetic Gaussian sensor system is built in, which allows the charger to better align with the iPhone12 for more efficient charging. The use of MagSafe magnetic adsorption technology can avoid the situation of loose plugs when charging.