New types of electronic products, especially portable electronic products such as digital cameras, mobile phones, and tablet computers, are increasingly used in people's work and life, and the matching chargers also use traditional wired chargers. The compatibility and versatility of the wired charger are relatively poor, and it is inconvenient for the users to carry and charge. 

At the same time, post-disposal treatment increases environmental pollution. Therefore, it is extremely urgent to provide users with more reliable, convenient and timely charging equipment. The development of YMP wireless technology makes the transmission of radio power possible, and the research and development of YMP wireless chargers will also meet the requirements of users.

Future battery charging will come in three main forms: visual charging, smart charging and wireless charging. In 2016, there were only 138 members of the International Wireless Charging Alliance (WPC), but this year WPC has more than 200 technology companies, such as Apple, Samsung, HTC, Huawei, Lenovo, Xiaomi, Nokia, Sony and many other mainstream mobile phone manufacturers. In general, a Qi wireless charger has a flat surface, called a charging pad, on which the mobile device can be charged. Qi specifies three different methods for coil calibration, namely: guided positioning (magnetic attraction), free positioning (dynamic coil) and free positioning (coil array). These three methods are briefly described below.

First, the guiding position (magnetic attraction): that is, a one-to-one fixed position charging for placing the charging device and guiding to achieve accurate calibration, the advantage of this calibration method is simple, but it requires a series of magnets in the charging device The material attracted, therefore, the eddy current-related power loss (and thus the temperature rise) will be attracted to the magnetic attractor. 

Second, free positioning (with a movable primary coil): also a one-to-one device capable of charging and charging, this method requires a mechanically movable primary coil that is tuned to couple with the position of the charging device, however, Movable mechanical components tend to degrade system reliability, and in addition, for multiple devices that are charged, motor control of the primary coil is complex and expensive. 

Third, free positioning (coil array): allows multiple devices to be charged without regard to their position. Compared with the above two methods, this calibration method is based on more expensive and more complicated winding structure and control electronic elements. The price offers more user friendliness.

YMP Wireless charging breaks the way that power transmission can only rely on direct contact transmission of wires. It is a non-contact transmission, which can avoid contact sparks, sliding wear, explosion shocks and the like that may be caused by contact power transmission. There are three main types of radio energy transmission: electromagnetic induction, electromagnetic resonance and electromagnetic radiation.

Electromagnetic induction is currently the most commonly used radio energy transmission method. Its technology has been mass-produced, its production cost is lower than other technologies, and it is verified by safety and shopping malls. Currently, there are three major alliances dedicated to the development and standardization of wireless charging technologies. The three major alliances are Alliance for Wireless Power (A4WP), Power Matters Alliance (PAM) and Wireless Power Consortium (WPC). Qi standard is the "wireless charging" standard introduced by WPC, which adopts the most mainstream electromagnetic induction charging technology. The Qi standard is aimed at portable electronic products such as cameras, video and music players, toys, personal care and mobile phones. At present, the research and design of low-power wireless chargers are mainly for wireless charging of mobile phones. They are based on TI's BQ500211 special chip. In some low-power terminals, special integrated chips are also used, which are developed in the early stage using dedicated integrated chips. It can save development time, but in the long run, it is not conducive to cost reduction and later expansion and upgrade.

These are the starting reasons, development history and standards of wireless charging technology. YMP strictly abides by Qi standard and develops wireless chargers suitable for various mobile phones, various places and various requirements. It also provides various wireless charging schemes for various customers to meet their needs.

If you are looking for a factory that can customize wireless chargers and wireless charging schemes, please choose us! For wireless charging technology, we are professional and trustworthy. If you have any needs in this area, please visit our official website to learn about us. You can also contact us directly. Thank you!

Source of this article:https://ymp-hk.com/