Apparatus for transmitting magnetic resonance wireless power using higher order mode resonance, receiving terminal, and method for transmitting and receiving wireless power using the same

• US 9,543,790 B2
• Filed: 07/16/2013
• Issued: 01/10/2017
• Est. Priority Date: 01/24/2013
• Status: Expired due to Fees

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Kim, Seong-Min, Moon, Jung Ick, Cho, In Kui, Byun, Woo Jin
• Primary Examiner(s): Barnie, Rexford
• Assistant Examiner(s): SHIAO, DAVID A
• Application Number:
  US13/943,380
• Publication Number:
  US 20140203655A1
• Time in Patent Office: 1,274 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H02J 50/12 of the resonant type

Abstract

A method includes matching a basic mode frequency signal and a higher order mode frequency signal to a multi-band frequency signal with respect to a signal in the form of the square wave, transferring the matched basic mode frequency signal and higher order mode frequency signal simultaneously to a multi-resonance reception resonator, converting output impedance of the basic mode frequency and the higher order mode frequency which are received through the reception resonator into a conjugate value of input impedance of the basic mode frequency and the higher order mode frequency of a receiver, and converting the converted multi-band frequency signal into an electric power that is required in a load and transferring the electric power to the load.

Claims

1. An apparatus for transmitting magnetic resonance wireless power using higher order mode resonance, comprising:

a transmitter, which generates a signal in the form of a square wave to generate a high-efficiency signal;

a transmission matcher, which receives the signal in the form of a square wave and which matches impedances of a basic mode frequency signal and a higher order mode frequency signal of the signal in the form of a square wave to corresponding impedances of a multi-band frequency signal to be input to a multi-resonance reception resonator; and

a multi-resonance transmission resonator, which performs wireless transmission of the impedance matched basic mode frequency signal and higher order mode frequency signal simultaneously to the multi-resonance reception resonator,

wherein the transmission matcher converts output impedance of the transmitter with respect to the basic mode frequency and the higher order mode frequency into a conjugate value of input impedance of the transmission resonator with respect to the basic mode frequency and the higher order mode frequency.

2. The apparatus of claim 1, wherein the higher order mode frequency signal is a third order mode frequency signal or a fifth order mode frequency signal.

3. The apparatus of claim 1, wherein the transmission resonator has the same size and shape as the reception resonator.

4. The apparatus of claim 1, wherein the transmission resonator has a size and a shape which are different from a size and a shape of the reception resonator.

5. A system for transmitting and receiving magnetic resonance wireless power using higher order mode resonance, comprising:

the apparatus of claim 1; and

a wireless power receiving terminal, including;

a multi-resonance reception resonator, which receives the basic mode frequency signal and the higher order mode frequency signal which are wirelessly transmitted from the multi-resonance transmission resonator of the apparatus for transmitting wireless power;

a reception matcher, which converts output impedance of the multi-resonance reception resonator with respect to the basic mode frequency and the higher order mode frequency which are input from the reception resonator into a conjugate value of input impedance of a receiver with respect to the basic mode frequency and the higher order mode frequency; and

the receiver, which converts the multi-band frequency signal that is input from the reception matcher into an electric power that is required in a load and transfers the electric power to the load.

6. The system of claim 5, wherein the higher order mode frequency signal is a third order mode frequency signal or a fifth order mode frequency signal.

7. The system of claim 5, wherein the reception resonator has the same size and shape as the transmission resonator.

8. The system of claim 5, wherein the reception resonator has a size and a shape which are different from a size and a shape of the transmission resonator.

9. A method for transmitting and receiving magnetic resonance wireless power higher order mode resonance, comprising:

providing the apparatus of claim 1,

matching, by the transmission matcher, the basic mode frequency signal and the higher order mode frequency signal to the multi-band frequency signal;

transferring, by the multi-resonance transmission resonator, the matched basic mode frequency signal and higher order mode frequency signal simultaneously to the multi-resonance reception resonator,

converting output impedance of the multi-resonance reception resonator with respect to the basic mode frequency and the higher order mode frequency which are received through the multi-resonance reception resonator into a conjugate value of input impedance of a receiver with respect to the basic mode frequency and the higher order mode frequency; and

converting the converted multi-band frequency signal into an electric power that is required in a load and transferring the electric power to the load.

10. The method of claim 9, wherein the matching converts the output impedance of the transmitter with respect to the basic mode frequency and the higher order mode frequency into the conjugate value of the input impedance of the transmission resonator with respect to the basic mode frequency and the higher order mode frequency.

11. The method of claim 9, wherein the higher order mode frequency signal is a third order mode frequency signal or a fifth order mode frequency signal.

12. The apparatus of claim 1, wherein the multi-resonance transmission resonator selectively suppresses wireless transmission of the higher order mode frequency signal in accordance with a user'"'"'s need, or a configuration of the multi-resonance transmission resonator and a configuration of the multi-resonance reception resonator.