Würth Elektronik WE-WPCC WPT/NFC wireless power coil with NFC antenna

The WE-WPCC WPT/NFC, from Würth Elektronik, is a wireless power coil with an integrated NFC antenna. The coil range has been expanded to five models, with receiver coils for transmission powers of up to 30, 40 and 50 W, and transmitters for 100 and 120 W.

The transmitters can be used according to the Qi (5 and 15 W) and Air Fuel Alliance standards for charging consumer electronics such as smartphones, smartwatches, wearables, digital cameras or tablets, while also transmitting data for identification or payment applications. They can also be used in industrial solutions with higher performance.

Wireless power transmission is particularly interesting when mobile devices are to be encapsulated — for example, in medical technology. For this reason, the wireless power coils are designed so that they can also be used outside both the above-mentioned standards for consumer electronics. While Würth Elektronik had already introduced a method for transmitting small amounts of data with the inductive field modulation technique, this solution now offers the possibility of transferring data rates of up to 848 Kbps by combining it with an NFC antenna.

The coils are efficient at transmitting energy due to Litz wire and high-quality ferrite material. The high permeability of the shielding concentrates the magnetic field and protects sensitive electronics or batteries from interference signals.