US 7,994,880 B2Granted

Energy transferring system and method thereof

AssigneeDarfon Electronics Corp.

InventorsChih-Jung Chen, Chih-Lung Lin, Zuei-Chown Jou

Life of this patent

Estimating the term…

Loading patent…

Abstract

An energy transferring system including a source-side resonator, an intermediate resonant module, and a device-side resonator is provided. The three resonators substantially have the same resonant frequency for generating resonance. The energy on the source-side resonator is coupled to the intermediate resonant module, such that non-radiative energy transfer is performed between the source-side resonator and the intermediate resonant module. The energy coupled to the intermediate resonant module is further coupled to the device-side resonator, such that non-radiative energy transfer is performed between the intermediate resonant module and the device-side resonator to achieve energy transfer between the source-side resonator and the device-side resonator. The coupling coefficient between the intermediate resonant module and its two adjacent resonators is larger than the coupling coefficient between the source-side resonator and the device-side resonator. The invention has the advantages of high transmission efficiency, small volume, low cost.

Claims16

Dependent claims

An energy transferring system, comprising:

a source-side resonator for receiving an energy, wherein the source-side resonator has a first resonant frequency;
an intermediate resonant module having a second resonant frequency substantially the same with the first resonant frequency, wherein the energy on the source-side resonator is coupled to the intermediate resonant module, such that non-radiative energy transfer is performed between the source-side resonator and the intermediate resonant module, and the coupling between the source-side resonator and the intermediate resonant module corresponds to a first coupling coefficient;
and
a device-side resonator having a third resonant frequency substantially the same with the second resonant frequency, wherein the energy coupled to the intermediate resonant module is further coupled to the device-side resonator, such that non-radiative energy transfer is performed between the intermediate resonant module and the device-side resonator, and the coupling between the intermediate resonant module and the device-side resonator corresponds to a second coupling coefficient;
wherein the coupling between the source-side resonator and the device-side resonator corresponds to a third coupling coefficient;
wherein the first coupling coefficient is larger than the third coupling coefficient, and the second coupling coefficient is larger than the third coupling coefficient.

3 more elements

Dependencies are inferred from the claim text.