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　　Introduction to mainstream chips for mobile phone wireless charging

　　Wireless chargers refer to chargers that do not use traditional charging power cords to connect to terminal devices that need to be charged. They use the latest wireless charging technology and magically transmit electrical energy by using the magnetic field generated between coils. Inductive coupling technology will Become a bridge connecting charging base stations and devices.

　　Wireless charging technology obtained 20 patents in 2007. Multiple devices can use one charging base station, and wired charging of mobile phones, MP3 players, power tools and other power adapters will no longer exist.

　　Smartphone and consumer electronics manufacturers are in urgent need of wireless power, and industry technology leadership can help customers promote the technology and simplify the process of charging their devices.

　　Nowadays, many wireless charging manufacturers are looking for chips from well-known brands. Below are the prices of several leading wireless charging IC companies. There are one and multiple price details. The prices are provided by large and well-known distributors. The higher the order quantity, the higher the price. The cheaper it gets.

　　TI's BQ51003 wireless power receiver price

　　The BQ51003 is an advanced integrated receiver IC for wireless power transfer in portable applications, optimized for applications with power levels of 2.5W and below. The device provides AC/DC power conversion while integrating the digital control functions required to use the Qiv1.2 communication protocol. Combined with the BQ500210 transmitter controller, the BQ51003 provides a complete contactless power transfer system for a wireless power solution. BQ51003 is technically researched by TI, and the price is provided by large distributors as follows:

　　IDT p9025A ultra-small Qi wireless power receiver IC price

　　IDT's P9025A is an integrated microcontroller, WPC-1.1.2 compliant wireless power receiver with an advanced Foreign Object Detection (FOD) feature. The device operates by resonating the AC power signal and converting it into a regulated 5.3v output voltage. The receiver includes a high-efficiency synchronous full-bridge rectifier and 5.3v tracking LDO output stage. The p9025A operates automatically detecting the transmitter type and starts the WPC AC modulated communication protocol with optimal efficiency. The device includes WPC-compatible base station control circuitry required to regulate the load of transmitted message packets. It uses minimal external components, reducing overall solution area and cost. Prices are as follows:

　　NXp company NXQ1TXH5 wireless charging transmitter IC price

　　The NXQ1TXH5 controller and driver IC are 5Vqi certified and comply with low-power wireless chargers. It provides a fully integrated solution including a 5V full-bridge power stage as the Wireless Power Consortium (WpC) defines 5VQi standards 5A, 11A, 12A and 16A. NXQ1TXH5 uses a circuit simulation level with dedicated testing equipment. The NXQ1TXH5 based transmitter operates from a single USB power supply limiting the power consumption of each device. Its prices are as follows:

　　There are several competing wireless charging standards on the market, with WPC's Qi wireless charging standard currently dominating the market. This charging method mainly uses magnetic induction technology with tightly coupled coils. However, major industry clusters are undergoing consolidation, and many chip companies are developing standards and products for magnetic resonance charging.

　　After the two major wireless charging alliances pMA and A4Wp announced their merger, they will be committed to integrating magnetic resonance and magnetic induction technologies in the future to achieve multiple modes of charging.

　　The wireless charging products demonstrated by several leading chip companies illustrate the trend of wireless charging. Qualcomm demonstrated wireless charging cars, while MediaTek and Broadcom demonstrated multi-standard mobile phone chargers. Such resonant standards are not widely available in products, but industry experts hope such products will ease the transition in the market.

　　Technology Zone Wireless charging reference design based on BD57020MWV and BD57015GWL Elabi FOTA upgrade plus monster Shared charging to play with life Uninterruptible power supply Foxconn’s acquisition of Belkin may become a wireless charging giant Maxim releases ultra-small size buck with the lowest quiescent current and highest peak efficiency in the industry What are the processes involved in converting electric vehicle charging?

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