The principle of wireless charger charging is that there is a coil in the mobile phone equipment, which can convert the magnetic energy at the charging board into electric energy, and then continuously charge it from the circuit board. This is why the wireless charger uses glass, because glass has more advantages in magnetic induction and faster charging speed. Recently, many street lamps with wireless charging have been added or removed on the streets of Wuhan. These street lamps can not only light up the street, but also help your mobile phone to charge automatically when there is no power. Of course, the premise is that your mobile phone needs wireless charging function.

According to the official of Wuhan Construction Bureau, 60 street lamps with wireless charging have been installed on Jianghan Road in Wuhan. Each street lamp has two positions for wireless charging, which is also high-power wireless charging. Many people who have experienced it say that it is not bad, it is quite easy to use, and it is convenient to charge at the roadside. Of course, you should be careful that your mobile phone is stolen. Many netizens saw this news and said that this street lamp is really convenient. More street lamps can be set at bus stations or subway stations, which can help many people to temporarily charge their mobile phones. Some netizens said that there is no need to worry about being stolen, the mobile phone is charging, and people have no patience to do anything else. They just keep looking at their phones.

Wireless charging is actually an electromagnetic induction charging method with low cost and high efficiency. The specific working principle is that the charging base is equipped with a coil and the back of the mobile phone is also equipped with a coil. When the mobile phone is close to the charging base, the magnetic field of the coil will change. When the magnetic field changes, it will generate induced current, and the wireless charging process will be completed by converting magnetic energy into electrical energy.

Electromagnetic induction charging method can achieve charging efficiency as high as 80%, but the disadvantage of this technology is that the distance can not be too far, and it can only be charged by contact. If the distance is farther, the effect will be much worse. The electromagnetic vibration wireless charging technology can solve this problem. This technology extends the charging distance to more than 3 meters, which can really realize long-distance charging.