Patent ID: 9065286
Filing Date: 2015-06-23
Classification: B60L,H01F,H01Q,H02J,Y02T

Abstract:
1. A wireless power system comprising: a source module comprising a source resonator and a power supply coupled to the source resonator to provide power to the source resonator, the source resonator having a resonant frequency ω a portable electronic device having a device module comprising a device resonator and a load coupled to the device resonator to receive power from the device resonator and provide power to the portable electronic device, the device resonator having a resonant frequency ω wherein the device module is spaced from the source module and configured to move freely relative to the source module over a range of distances D between the source module and the device module, wherein the source resonator and the device resonator are configured to resonantly and wirelessly couple electromagnetic power from the source resonator to the device resonator using non-radiative electromagnetic induction having an energy transfer rate κ, and wherein the intrinsic loss rates satisfy κ/√{square root over (Γ wherein f