1. The distance between the transmitting and receiving coils of wireless charging is about 8mm. The QI standard is not just the distance between the two, but the frequency and communication protocol of the two wireless charging standards. This distance is a maximum distance, beyond which the efficiency of wireless reception is very low. So it doesn't have to be 8mm.
2, the distance of the wireless charger can only be effective within the coil range of the charger, more than the distance can not receive charging, each manufacturer's product is different, can not be universal.
3, WiFi wireless charging: ten meters away advantage: Go with the charge, in line with the concept of wireless charging Disadvantages: charging object positioning is not easy, waste of power Ultrasonic wireless charging: effective range close to 5 meters Advantages: the technology is very safe; The receiver is cheap and small; Can be used for data transmission. Cons: The final product may not live up to expectations in terms of price, power, speed, and safety.
4, S7 support wireless charging, need to purchase a separate wireless charging base. Mobile phones use wireless charging, you need to buy wireless charging base and wireless charging back shell to use. How to use: Connect the charger to the wireless charging base, and then noInstall the battery back shell on the phone, and finally place the phone on the wireless charging base normally.
1, wireless charging technology is the use of electromagnetic induction principle, in the sending and receiving end with the corresponding coil to send and receive inductive current to charge.
2, the principle of wireless charging technology is electromagnetic induction, magnetic field resonance, radio wave and so on. Electromagnetic induction type primary coil of a certain frequencyAlternating current, which generates a certain current in the secondary coil through electromagnetic induction, thereby transferring energy from the transmission end to the receiving end.
3. 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 a Wi-Fi access point (router), and the other is a customized charging sensor.
4, generally around 0.9-2 meters high-power wirelessThe implementation of wireless charging technology. The principle is that the electromagnetic wave signal is emitted through the transmitter (charger), and then the electromagnetic wave is received by the receiving end (electronic device), and the received energy is converted to achieve charging. 3, there is still a lot of space for the development of wireless charging technology, electromagnetic induction is only one of them, in addition to magnetic resonance and other theoretical technology support of the space charging, interested in you can understand. Finally, if you are using wireless charging, be sure not to put the bus card with a chip, bank card, etc. near the wireless charger, which may be degaussed and bring unnecessary trouble.
4, compared with the traditional wired charging and wireless charging, space charging does not need to insert the cable or contact the charging device, only need to place the phone in the vicinity of the charging device to charge. This not only improves the convenience of charging, but also avoids the trouble of cable bondage and plugging. At the same time, the air separation charging technology also has a higher charging efficiency, which can fully charge the phone in a short time.
1, generally about 0.9-2 meters of high-power wireless chargingWireless charging technology can be divided into two ways of low-power wireless charging and high-power wireless charging. Low-power wireless charging often uses electromagnetic induction, such as the Qi method of charging mobile phones, but ZTE's electric vehicle wireless charging method uses induction.
2, currently known reports, the farthest distance is 10 meters, using electromagnetic wave technology. The existing wireless charging technology uses magnetic field, electromagnetic wave, laser, ultrasonic and other energy transfer media. The 10-meter technology mentioned above, which uses electromagnetic waves as a medium, remains in the laboratory stage. Currently on the market commercial mainIt is a technology with magnetic field as the medium, which is divided into magnetic induction and magnetic resonance.
3, the core magnetic resonance long distance wireless charging developed by Spurotin can successfully achieve wireless charging within one meter.
4, the current wireless charging technology can only reach the longest transmission distance of 7 meters.
5, that needs to be placed next to the transmitter), at the same time, they are also studying long-distance wireless charging, which will be an emerging market. In fact, the current technology can achieve effective power transmission in the range of 3 to 4 feet, but this needs to be verified by the relevant organization.I believe that in the next 5 to 10 years, or even sooner, long-distance wireless charging will enter everyone's life.
6, -- extremely stable charging will not be powered off until fully charged. The future of charging A new and powerful wireless charger is hidden under the desktop to charge mobile devices through the desktop. The device input is 19V / 2A, and the charging distance can reach 45mm, while the traditional Qi charging distance is only 2-8mm. In actual tests, the iPhone 8P was fully charged in just 150 minutes (2 1/2 hours).