Short-range wireless power for portable devices took one step forward with the unveiling of WiTricity’s iPhone-targeted reference design for the group’s resonant energy transfer system. Like other wireless charging options for Apple’s handsets, WiTricity’s demonstration system consists of a plastic sleeve that envelopes the device and a charging hub that acts as a sort of wireless power “base station.” WiTricity’s resonant inductive coupling technology however, provides several benefits over competitive systems.
Consumers who use charging platforms based on WiTricity’s technology wouldn’t need to place their iPhone directly on the charging pad. Instead placing the iPhone in its vicinity would do the trick. Furthermore, power transmission isn’t affected by materials such as wood or glass, meaning that the pad could be mounted underneath a table or desk providing power for devices resting on the top.
On top of that, WiTricity’s proof-of-concept can charge multiple devices from a single coil. Traditional direct induction systems usually require a separate coil for each device, increasing the size and cost of the charging pads.
WiTricity CEO, Eric Giler, said the following in a statement about the product:
Our team is thrilled to introduce the first wireless charger that works over distance. We've seen the transformative nature of our foundational highly resonant wireless power transfer technology in the automotive, medical and military fields, and now plan to change the game in consumer electronics.
In this way, a realistic and practical approach to wireless transferring useable amounts of power over distances suitable for limited applications can be realized.
Source: WiTricity (Press Release)