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TDK Develops Ultra-thin Receiving Coil Unit for Wireless Power Transfer on Mobile Devices
By Joy Hou - on 9 Jul 2012, 5:40pm

TDK Develops Ultra-thin Receiving Coil Unit for Wireless Power Transfer

TDK has announced the development of a TDK wireless power transfer coil unit designed for smartphones and other mobile devices.

Image source: TDK

Measuring a mere 0.57mm thin, the receiving coil is highly resistant to shock, providing excellent reliability. The coil's design minimizes the tendency towards rising resistance and achieves a power transfer efficiency that allows clearing the requirements of the Wireless Power Consortium's (WPC) "Qi" standard. Here's an excerpt of what it means to adopt the Qi standard from a previous article on wireless charging:-

Adoption of such a standard will greatly increase wireless charging possibilities on a variety of mobile devices such as phones, tablets, notebooks for a start and more in the future. Being able to cut the cord and getting rid of those nasty proprietary charging bricks brings about an immense improvement in freedom and reducing waste from unused old chargers.

To know more about wireless charging, the Qi standard from WPC, you can check our coverage of what Freescale is doing in this space, complete with demos from Computex 2012.

For TDK at this point of time, output current is on the order of 0.5 to 0.6 Amperes, but an even thinner 0.50mm type with equal or better output current is already in development, with a view towards starting mass production in 2013.

Source: TDK


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