What are the common problems of wireless charging? one

2021-07-03 08:30:20
      1. How to charge the mobile phone wirelessly?

       The principle of wireless charging technology is actually very simple. Zhou Hongzhi said, "the basic principle of the so-called wireless charging technology is the same as that of the transformer, which is the principle of" electricity generates magnetism and magnetism generates electricity "that we learned in physics class in middle school. Take the mobile phone as an example. There is a magnetic core in the charger of the mobile phone, and there is a coil outside, which can convert electricity into electromagnetic field, and the electromagnetic field can spread in space. At the same time, there is a corresponding receiving coil in the mobile phone. After the receiving coil contacts the electromagnetic field emitted by the charger, it can charge the mobile phone through a certain circuit. "

      2. Will the radiation generated by wireless charging of mobile phones cause cancer?

       Zhou Hongzhi said, "wireless charging of mobile phones will produce a certain amount of radiation, but under the premise of quality assurance and correct use, this kind of radiation has little harm to human body, let alone cancer. On the one hand, in wireless charging, the magnetic field is closed and has little radiation to the outside world; On the other hand, as long as the products have passed the national 3C certification, they will go through strict inspection, and the radiation they produce must also meet certain standards, which will not cause harm to the human body. "
      3. Will the radiation generated by various electronic products be superimposed?

       With the development of science and technology, people come into contact with more and more electronic products: computers, mobile phones, tablets, etc. Some people worry that electronic products will not have radiation? Will these radiations be superimposed to produce the effect of "1 + 1 = 2" or even "1 + 1 > 2"?

       Zhou Hongzhi said, "electronic products have radiation, but as long as they meet the national 3C certification standards, they will not cause harm to human body. As for radiation superposition, it needs to meet very strict conditions. In daily life, there are almost no cases of "1 + 1 = 2" or "1 + 1 > 2". The radiation generated by various electronic products will interfere with each other, but will not overlap with each other. In many cases, they will even cancel each other. For example, many people throw stones at the lake at the same time, and each stone will form water waves, but these water waves will not be superimposed into huge waves, and the radiation will not be superimposed

      4. Why is the technology of wireless charging not popular?

       Wireless charging technology for mobile phones has been expected by people, but it has not been popularized so far. Is it because of its high cost or difficult to realize in technology?

       "Technically speaking, wireless charging of mobile phones can be realized, and the cost is not high," Zhou said. The reason why this technology has not been popularized is mainly due to the problems of standards and requirements, such as which specification should be adopted for chargers and how to seal the magnetic field. Now these standards have not been officially released. " However, Zhou Hongzhi said that once the relevant standards are officially released, the technology of wireless charging for mobile phones will soon become popular