Freescale Semiconductor Inc. of Texas, USA announced recently that it will launch a wireless charging scheme that is faster than traditional USB interfaces and other common wired technologies early next year. This solution will support large-screen mobile phones, tablets, and handhelds. Medical equipment and even industrial equipment. They call it the industry's first 15-watt Qi standard wireless charging scheme (3 times that of a normal 5-watt charger).
According to a report recently organized by the Physicists Organization Network, Ars Technica, a well-known technology blogger in the United States, points out that the current Qi (Qi-labeled wireless charging standard) charging board output power is only 5 watts, as slow as a wired charger, and Freescale The new plan for listing next year will be changed. The media comment editor Ron Emadeo said that it "should be as fast as a hard-wired quick charger (like a turbocharger)."
A notable feature of wireless charging systems is that they can efficiently charge larger devices with higher capacity batteries, while charging with smaller devices can make charging faster with higher power output.
"The current mobile products offer a wider range of features, functions and specifications." Dennis Kabro, president of Freescale's MCU Global Markets, said that in turn, wireless charging system developers have to provide larger batteries, faster The charging speed. The company designed a 15-watt charging solution to meet these market needs and release its design ideas. A tablet with a 4000 mAh battery may charge more than 8 hours using a standard USB interface, and their new solution can reduce time by several hours.
Market research company Tirias Research analyst Jim McGregor points out that the power that smaller devices can accept is limited based on the thermal limitations of the receiving coil and the battery. But Freescale’s solution is more beneficial in supporting “more intelligent, higher power charging for two-way communication, and more types of mobile devices.â€
This targeted solution includes two 15-watt ICs: the WPR1516 receiver chip and the accompanying MWCT1012 transmitter chip. For developers, this means that they can use the existing firmware library to implement the core functionality of the most advanced wireless charging system. The program includes an advanced application programming interface that can be used to modify or adjust library functions, allowing for the addition of custom application code, and customizing the end product. The company stated that they are still expanding the scope of development support. The latest overall system solution includes a preliminary product reference design, an optimal performance evaluation board, and the fastest time-to-market. (Chang Lijun)
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