The development of smart phones can be said to be very rapid, it has become an indispensable digital product for everyone. Nowadays, mobile phones are no longer only used to make phone calls and send text messages. Our clothing, food, housing and transportation can basically be accomplished by smart phones. As we all know, in the past era of functional computers, it is normal for mobile phones to stand by for more than ten days. At that time, we could not charge our mobile phones for a week or two, but most of the smartphones now have several times the battery capacity of the functional machine era. Now users need to charge their mobile phones once a day or even twice a day.
So the question is, at this stage, wireless charger technology has always been a trend in the future development direction of smartphones, it can only be used as a supplement to wired charging technology, because its charging speed is really too slow, and the charging requirements are relatively high, then is wireless charger really superior to wired charging?
First, we need to understand the principle of wireless charger of mobile phones. From childhood to adulthood, we are accustomed to holding chargers to plug into sockets, charging mobile phones or computers, thinking of 220V high-voltage mobile phones or computers for energy transmission. For the concept of wireless charger in the past few years, it denies that it is a fantasy, but for the principle of wireless work is not clear, it gives us a charging function.
Wireless charger refers to the use of the latest wireless charger technology. By using the magnetic field generated between coils, magical transmission of electric energy, inductive coupling technology will become a bridge to connect charging base station and equipment. However, the wireless charger device transmits energy to the charging terminal device, which converts the received energy into electrical energy stored in the battery of the device. The principle of energy transmission is inductance coupling, which can ensure no exposed conductive interface. Not only can the disorderly transmission lines between devices be saved, such as electricity. Electronic devices, such as movable toothbrushes, which are often in contact with conductive media such as liquids, are safer. Radio wave is less used because of its huge space and high energy consumption. In fact, it used mine radio in its early stage. The miniature high-efficiency receiver can receive radio wave transmitted in space. Because of the huge space loss, this technology is generally only used on low-power electronic equipment to receive radio wave. The distance between the device and the launcher should not exceed several meters.