WREL (technology)

Wireless Resonant Energy Link ( wrel ) is a method for wireless energy transmission over short distances. The connection operates on the principle of a resonant Transformatores, but has in contrast to conventional transformers, no core. The coupling of the two, mounted between stationary and mobile unit coil, provides a wireless link represents the associated poor coupling in the magnetic circuit results in a correspondingly low efficiency of the transmission path. As a rule, this is well below 25 % and depends strongly on the distance to be bridged from. The energy transfer can take place only on a tuned resonant frequency reasonably efficient.

Be developed such interfaces to provide, among other things Intel Corporation with the aim of mobile devices such as laptops wirelessly with electrical energy. Such a system was presented in August 2008 at the Intel Developer Forum in San Francisco.