1, flagship performance: Xiaomi 14 Ultra stands tall, exclusive 80W wireless fast charge, let your phone charge faster and more efficient. High performance series: The Mi 11 Ultra and 11 Pro keep pace with the 67W wireless fast charging experience. Pro options: Mi 14 Pro and 13Pro series, especially the small inductive version, 50W wireless fast charge makes you easy and convenient. Conventional power: Xiaomi 113 and 12 models support 50W ordinary wireless fast charge, which is enough for daily use.
2, Mi mobile phone support wireless charging models are Mi 12/Pro/ Mi 12s, Mi MIX Mi 11/Pro/Ultra, Mi 10S, Mi 10 Supreme commemorative edition, Mi 10/Pro, Mi phone 9/ Transparent premium edition /Pro, Mi Mix 3/2S, Mi 13/pro. Mobile phone charging has wired charging, wireless charging and wireless reverseResonance, electric field coupling and radio wave transmission and other methods Millet mobile phone wireless charging principle , mobile phone Millet mobile phone wireless charging principle Wireless charging principle mostly uses the electromagnetic induction principle. Electromagnetic induction wireless charging, when the current of the power supply through the coil (wireless charger of the coil) will produce a magnetic field, its wireless charging principle He is not powered on the coil (mobile phone end of the coil) close to the magnetic field will produce current, charging the mobile phone. As shown below.
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.
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.
Finally put the phone on the unlimited charger, note that the wireless charging induction area of the phone is generally the middle of the phone.
1, open the phone, click to enter the phone Settings. On the phone Settings page, tap to go to Battery and Performance OneHurdles. In this page, click Battery in the right column to enter the battery page. Click to enable the wireless charging function. Click on the bottom corner to turn on the wireless charging function.
2, First, gently swipe down from the top of the phone screen to open the Control center, and then continue to pull down to expand all the functions. Next, look for the "Wireless backcharge" option on the Control Center page. Click the "Wireless backcharge" option, when the button color turns blue, it means that the wireless charging function has been successfully turned on.
3. Take the MIUI 11 system of Xiaomi 10pro mobile phone as an example, the steps to open wireless charging are as follows: Slide down from the top of the phone screen to bring up the control panel, and continue to pull down to expand all the functions of "Control Center"; In the Control Center screen, swipe left to the last page; Click the "Edit" button; Click the "Wireless reverse charging" button. When the button turns blue, it indicates that it is on.
According to Xiaomi, the core of millet space charging technology lies in spatial positioning and space energy transmission, and its space charging pile has 5 built-in phase interference antennas, which can carry out millisecond level of mobile phonesSpatial positioning, accurate detection of the phone's position "Phase control array composed of 144 antennas, through beamforming to beam millimeter waves to the phone.
What principle of millet 11 space charging: The technical principle of space charging is released from the energy source, there is a fixed frequency of radio waves and mobile phone receiving frequency match, so as to transmit electric energy and charge. Due to the power loss efficiency of this technology is about 70%, but the stable power of 5 to 10w is already the limit.
The principle of Mi 11 air separation charging is to use magnetic resonance wireless charging technology. Magnetic resonance wireless chargingThe technology is a wireless charging method based on magnetic resonance principle. In the Mi 11's air separation charging technology, the charging device emits a magnetic field of a specific frequency, and the phone has a corresponding receiving coil built in.
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 is passed through the coil (the wire coil of the wireless charger)A magnetic field is generated, and when other unenergized coils (the charged coils on the phone) are close to the magnetic field, an electric current is generated to charge the phone. As shown below.
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.
Basic principle: The use of electromagnetic induction, that is, the primary coil of a certain frequency of alternating current, through electromagnetic induction in the secondary coil to produce a certain current, so as to transfer the energy from the transmission end toThe receiving end.
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.
The principle of mobile phone wireless charging is as follows: the electromagnetic induction charging base and the mobile phone terminal have built-in coils, and when the two are near, the transmitting coil is based on a certain frequency of alternating currentThrough electromagnetic induction, a certain current is generated in the receiving coil of the mobile phone, so that the electrical energy is transferred from the transmitting end to the receiving end, and the power is supplied to the mobile phone from the charging seat.
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 transfer charge in the air between the charger and the mobile phone, coil and capacitor form resonance between the charger and the mobile phone, to achieve efficient transmission of electric energy technology.