If you use vivo mobile phone, you can refer to the following information: Wireless charging, also known as inductive charging or non-contact inductive charging, based on the principle of electromagnetic induction, does not need to be like traditional wiredThe charger also needs a transmission cable to transmit electricity to the device, but the device that needs to be charged can be charged by touching the wireless charging base.
Get a mobile phone that supports wireless charging and a wireless charger. Connect the wireless charger to the power supply and make sure the power supply is working properly. Align the back of the phone with the charging area of the wireless charger to make sure there are no obstructions between the two. Confirm the connection status of the phone and the wireless charger, usually there will be an indicator light or the charging status will be displayed on the phone screen.
The parameters of the magnetic wireless charging bracket are listed here, and it supports a maximum of 15WTaking into account the needs of different devices, its 7mm interior is also specially added a low-power fixed-frequency charging chip, which can be intelligently switched between fast charge and trickle charge, through the filament coil, wireless charging for smart devices, the charging process is efficient and distributed, and the heat is extremely low.
Wireless charging can be divided into low-power wireless charging and high-power wireless charging two ways, low-power wireless charging often uses electromagnetic induction, such as mobile phone charging. High-power wireless charging usually uses magnetic resonance, and the power supply device (charger) transmits energy to the power device, which uses the received energy to charge the battery and supply it at the same timeMethods: electromagnetic induction, radio waves, magnetic resonance Currently the most common wireless charging solution is: Electromagnetic induction, which generates an electric current through primary and secondary coil induction to transfer energy from the transmission segment to the receiving end, is a solution provided by companies such as Splashpower in the UK, WildCharge and Fulton Innovation in the US.
3, there is another scheme is to use the smart grid for wireless charging control, the wireless charging management authority of electric vehicles is handed over, and the wireless charging device is controlled by the smart grid.
4. At present, there are four wireless charging methods: electromagnetic induction charging, magnetic resonance charging, radio wave charging and electric field coupling charging, and the technical scheme of each charging method is different. Electromagnetic wireless charging uses the induced magnetic flux generated between the inductive magnet on the power supply side and the electric side to convert the magnetic force into electrical energy and then transmit it.
5, Abstract: Wireless charging is a new technology, compared with the traditional method of charging with data lines, wireless charging can be transmitted to the mobile phone through the cable, with safe and harmless, low power loss rate, convenient.
6, Xinlitit Electronic Technology,With its deep semiconductor research and development strength, it provides high-quality CAN/CAN FD bus interface chips for the global automotive market and becomes the leading analog IC supplier in China. Core's team is composed of returned overseas talents and innovative engineers, dedicated to providing cutting-edge technologies and solutions for the automotive electronics field.
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.
There are five principles of wireless charging: electromagnetic induction type, magnetic resonance type, radio wave type, focused light type, ultrasonic wireless charging type. 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.
Current wireless charging technology masterThere are four basic methods: electromagnetic induction, magnetic resonance, radio wave and electric field coupling. Electromagnetic induction: This kind of charging system is mainly composed of the primary coil and the secondary coil two coils, through the primary coil with a certain frequency of alternating current, due to the role of electromagnetic induction, in the secondary coil will produce a certain current, visible energy from the transmission end transferred to the receiving end.
Electromagnetic induction charging technology: This wireless charging technology realizes energy transmission through electromagnetic induction principle. A certain distance must be maintained between the charging base and the charging device. Usually, the charging device needs to be placed on the charging baseLine charging. This technology has high charging efficiency and is suitable for small electronic products such as mobile devices.
There are four basic principles of wireless charging, respectively, electromagnetic induction charging, magnetic resonance charging, radio wave charging, electric field coupling charging, the mainstream standards on the market mainly Qi standard, PMA standard, A4WP standard, iNPOFi technology and Wi-Po technology five. Let's take a look at the principle of wireless charging.
Wireless charging technology is the use of electromagnetic induction principle, in the sending and receiving end with the corresponding coil to send and receive the induced current to charge.
Test results show that the wireless transmission distance is about 15 centimeters, but Fujitsu says that wireless transmission distance can eventually be achieved several meters. It should be pointed out that the further away from the device, the more power lost in transmission. Fujitsu's system is similar to technology developed by Witricity, an American company, which also uses magnetic resonance to transmit electricity over distances of several meters.
The principle of wireless charging technology is electromagnetic induction, magnetic field resonance, radio wave and so on. Electromagnetic induction type primary coil a certain frequency of alternating current, through electromagnetic induction in the secondary coil to produce a certain current, thereby transferring energy from the transmission end to the receiving end.
Radio waves. The principle is to convert environmental electromagnetic waves into current and transmit current through a circuit. This way the transmission distance is greater than 10 meters, which is suitable for long-distance low-power charging, and can also realize automatic charging anytime and anywhere. WiFi wireless charging. It mainly consists of two components, one is the Wi-Fi access point(Router), the other part is the custom charging sensor.