What are the common problems of wireless charging? two

2021-07-05 10:27:59
     Bottleneck of market application development

      1. The core wireless charging technology is not perfect

      2. It is difficult to realize long-distance transmission in radiation area
      3. Long distance positioning requires too much hardware
      4. The magnetic resonance height matching can be controlled small
      5. The application scope is limited and has not been extended
      6. Market factors and consumer psychology lead to developers not to vigorously carry out technical research


      MIT researchers said that the body has a strong response to the electric field, but the body has almost no response to the magnetic field, so this system will not affect human health. However, this is only a speculation. Some researchers are worried about this point of view, and further experiments are needed before real application and life.

      As an electronic charging product, the charger itself can not avoid radiation, so it is inevitable that the wireless charger has radiation, but the power of the wireless charger is very small, the charging time is long, and the radiation is also small.

     Port unification

      In order to avoid unnecessary waste and generate more e-waste, China is implementing the unified standardization of mobile phone charger ports. However, for wireless charging technology, this point will be popularized to the greatest extent. Not only mobile phones can be used, but also digital cameras, iPhones, iPads and laptops can share this charging device, Fujitsu even plans to introduce a more advanced technology to expand this success from portable electronic products to electric vehicle charging. The ultimate goal of Fujitsu's move is to set up public "charging points" in the streets, which can realize more convenient 24-hour charging service for portable digital devices and electric vehicle users, In addition, the wireless charger is smarter and can save energy. Although the efficiency acceptance of wireless charging equipment is about 70%, which is equal to that of wired charging equipment, it has the function of automatic power off to avoid unnecessary energy consumption, and the efficiency acceptance rate is constantly improving.

     The mobile phone will have a built-in charging receiver and a unified wireless charging standard

      In order to realize the wireless charging of mobile phones and other products, there must be two parts: the transmitter is connected with the power supply, which is responsible for transmitting electric energy in a wide space,

      Receivers are generally installed on electronic products to receive electric energy. Wireless charging technology has been used in mobile phone products. Taking iPhone as an example, in order to make it have wireless charging function, wireless charging manufacturers have modified it and installed a kind of "clothes" similar to "apple skin" as wireless charging receiver, It appears in the form of adding a charging shell for mobile phones, but the relevant modified products will be available in China. This shell is called "oi gate". It supports iPhones and blackberries, and users will experience this function first without changing their mobile phones. In early 2013, the wireless charging receiver will be "slimmed down" and become a built-in wireless charging receiver chip in mobile phone products, It's only the size of a fingernail. Nokia, Philips, LG, Samsung, Sony Ericsson, iPhone, HTC, Google, ZTE, sharp, rim and many other international well-known mobile phone manufacturers support this technology. Wireless chargers may also be bundled with mobile phones for sale.