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　　Wireless charging magnetic induction/magnetic resonance standards are advancing simultaneously

　　Wireless charging application products will emerge in large numbers. Consumer demands for battery life in mobile devices have prompted the rapid evolution of wireless charging technology. Not only are magnetic induction standards and ecosystems becoming increasingly complete, but the application landscape is also expanding. Magnetic resonance technical specifications and solutions that can achieve longer charging distances have also recently made breakthroughs, which are expected to further extend the market reach of wireless charging.

　　In the electronics industry, wireless power technology is an area of significant growth and is enabling a wide variety of applications. The driving force behind the growth in the number of wireless charging is, first, the surge in consumer demand for wearable electronic devices that use batteries as power sources, and the other is the inconvenience of charging. The number of wearable devices with wireless charging capabilities has grown significantly, and as this growth trend continues, wireless power will become a part of daily life and wearable device usage habits.

　　In the consumer market, due to considerations such as development standards, solution miniaturization, and cost reduction, magnetic induction (MI) and magnetic resonance (MR) technologies have become the dominant wireless power transmission technologies.

　　Due to tighter magnetic coupling, magnetic induction can currently provide higher power transmission, simpler design, and better efficiency; as for magnetic resonance, it can provide more spatial freedom, and each transmitter pad (TransmitterPad) Accommodates multiple receivers, and less heat builds up on near-field metal objects. There are two popular standards in the field of magnetic induction: the Qi standard of the Wireless Power Consortium (WPC), and the standard of the Power Matters Alliance (PMA). For designers of today's magnetic induction-based wearable devices, the question therefore arises as to whether compatibility with the Qi standard, the PMA standard, or both standards can be ensured.

　　Magnetic resonance standards are mainly dominated by the Alliance for Wireless Power (A4WP). Products compatible with the Qi standard or PMA standard are currently on the shelves, while products based on A4WP are expected to be available in 2014.

　　This article examines the wireless power industry and the correlation between magnetic induction and magnetic resonance technologies. It also discusses how chip manufacturers that manufacture magnetic induction wireless power receivers can help magnetic induction technology overcome the problem of double standards.

　　Ecosystem taking shape, wireless charging commercialization accelerated

　　In many aspects of daily life, the inconvenience of wired connections for power and data is inevitable. Wireless data access has become ubiquitous, but similarly simple wireless power access is still not available. Carrying bulky plugs, cords and adapters with you when you go out, and having to worry about finding available public power sockets, is a recurring hassle.

　　After the establishment of a popular wireless power ecosystem, mobile phones will benefit the most, mainly because mobile phones have large and high-brightness displays, powerful multi-core processors, various built-in wireless functions, and applications that require real-time data. programs, and new biometric applications, these factors can cause the phone to need to be recharged several times a day.

　　In addition, consumer demand is trending toward lighter and thinner devices, but unfortunately, the power density of lithium-ion batteries has not increased accordingly. In response to consumer demand, major wearable device manufacturers have begun shipping mobile phones compatible with the Qi standard, currently the most popular wireless charging standard. Mobile phone operators also encourage the establishment of a wireless power transmission ecosystem so that mobile devices can be charged anytime and anywhere and can transmit wireless data.

　　Wireless charging can be achieved simply by placing the device on a device that supports wireless power. The premise is that the launch pad must be widely deployed, which is already happening.

　　Currently, in homes and offices, there are already various Qi and PMA launch boards of different sizes to choose from. New car models from Toyota and Chrysler already provide the option of Qi standard transmitters, and more car models will also provide this feature in the future; in addition, many aftermarket automotive solutions are also available .

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