CONTACTLESS POWER SUPPLYING COMMUNICATION APPARATUS, CONTACTLESS POWER RECEIVING COMMUNICATION APPARATUS, POWER SUPPLYING COMMUNICATION CONTROLLING METHOD AND POWER RECEIVING COMMUNICATION CONTROLLING METHOD

• US 20110018358A1
• Filed: 06/18/2010
• Published: 01/27/2011
• Est. Priority Date: 07/23/2009
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: KOZAKAI, Osamu
• Application Number:
  US12/818,660
• Publication Number:
  US 20110018358A1
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction

Abstract

A contactless power supplying communication apparatus includes: a resonance element adapted to supply alternating current power to one or more electronic apparatus by resonance; an alternating current power supply section adapted to generate alternating current power of a frequency in accordance with a resonance frequency of the resonance element and supply the generated alternating current power to the resonance element; a communication section adapted to carry out a communication process through the resonance element; and a switching section provided between the resonance element and the communication section and adapted to cut off connection between the resonance element and the communication section upon power supply but establish connection between the resonance element and the communication section upon communication.

Claims

1. A contactless power supplying communication apparatus, comprising:

a resonance element adapted to supply alternating current power to one or more electronic apparatus by resonance;

an alternating current power supply section adapted to generate alternating current power of a frequency in accordance with a resonance frequency of said resonance element and supply the generated alternating current power to said resonance element;

a communication section adapted to carry out a communication process through said resonance element; and

switching means provided between said resonance element and said communication section and adapted to cut off connection between said resonance element and said communication section upon power supply but establish connection between said resonance element and said communication section upon communication.

2. The contactless power supplying communication apparatus according to claim 1, further comprising

an excitation element provided between said alternating current power supply circuit and said resonance element and adapted to receive supply of the alternating current power from said alternating current power supply circuit and supply the alternating current power to said resonance element through electromagnetic induction.

3. A contactless power supplying communication apparatus, comprising:

a resonance element adapted to supply alternating current power to one or more electronic apparatus by resonance;

an alternating current power supply section adapted to generate alternating current power of a frequency in accordance with a resonance frequency of said resonance element and supply the generated alternating current power to said resonance element;

a communication section adapted to carry out a communication process through said resonance element; and

switching means provided between said resonance element and said alternating current power supply section and adapted to establish connection between said resonance element and said alternating current power supply section upon power supply but cut off connection between said resonance element and said alternating current power supply section upon communication.

4. The contactless power supplying communication apparatus according to claim 3, further comprising

an excitation element provided between said alternating current power supply circuit and said resonance element and adapted to receive supply of the alternating current power from said alternating current power supply circuit and supply the alternating current power to said resonance element through electromagnetic induction.

5. A contactless power supplying communication apparatus, comprising:

a resonance element adapted to supply alternating current power to one or more electronic apparatus by resonance;

an alternating current power supply section adapted to generate alternating current power of a frequency in accordance with a resonance frequency of said resonance element and supply the generated alternating current power to said resonance element;

a communication section adapted to carry out a communication process through said resonance element; and

filter means provided between said resonance element and said communication section and having a frequency band which allows a signal of a frequency band to pass through said filter means, said filter means being adapted to keep the impedance of said resonance element to a predetermined value.

6. The contactless power supplying communication apparatus according to claim 5, further comprising

an excitation element provided between said alternating current power supply circuit and said resonance element and adapted to receive supply of the alternating current power from said alternating current power supply circuit and supply the alternating current power to said resonance element through electromagnetic induction.

7. A contactless power supplying communication apparatus, comprising:

a resonance element adapted to supply alternating current power to one or more electronic apparatus by resonance;

an alternating current power supply section adapted to generate alternating current power of a frequency in accordance with a resonance frequency of said resonance element and supply the generated alternating current power to said resonance element;

a communication section adapted to carry out a communication process through said resonance element; and

filter means provided between said resonance element and said alternating current power supply section and having a frequency band which allows the alternating current power to pass through said filter means, said filter means being adapted to keep the impedance of said resonance element to a predetermined value.

8. The contactless power supplying communication apparatus according to claim 7, further comprising

an excitation element provided between said alternating current power supply circuit and said resonance element and adapted to receive supply of the alternating current power from said alternating current power supply circuit and supply the alternating current power to said resonance element through electromagnetic induction.

9. A contactless power receiving communication apparatus, comprising:

a resonance element adapted to receive supply of alternating current power from a resonance element of a power supply source contactlessly through resonance;

a rectification circuit adapted to form direct current power from the alternating current power from said resonance element and output the direct current power;

a communication section adapted to carry out a communication process through said resonance element which receives the supply of the alternating current power; and

switching means provided between said resonance element and said communication section and adapted to cut off connection between said resonance element and said communication section upon power reception but establish connection between said resonance element and said communication section upon communication.

10. The contactless power receiving communication apparatus according to claim 9, further comprising

an excitation element provided between said resonance element and said rectification circuit and adapted to receive supply of the alternating current power from said resonance element through electromagnetic induction and supply the alternating current power to said rectification circuit.

11. A contactless power receiving communication apparatus, comprising:

a resonance element adapted to receive supply of alternating current power from a resonance element of a power supply source contactlessly through resonance;

a rectification circuit adapted to form direct current power from the alternating current power from said resonance element and output the direct current power;

a communication section adapted to carry out a communication process through said resonance element which receives the supply of the alternating current power; and

switching means provided between said resonance element and said rectification circuit and adapted to establish connection between said resonance element and said rectification circuit upon power reception but cut off connection between said resonance element and said rectification circuit upon communication.

12. The contactless power receiving communication apparatus according to claim 11, further comprising

an excitation element provided between said resonance element and said rectification circuit and adapted to receive supply of the alternating current power from said resonance element through electromagnetic induction and supply the alternating current power to said rectification circuit.

13. A contactless power receiving communication apparatus, comprising:

a resonance element adapted to receive supply of alternating current power from a resonance element of a power supply source contactlessly through resonance;

a rectification circuit adapted to form direct current power from the alternating current power from said resonance element and output the direct current power;

a communication section adapted to carry out a communication process through said resonance element which receives the supply of the alternating current power; and

filter means provided between said resonance element and said communication section and having a frequency band which allows a signal of a frequency band to pass through said filter means, said filter means being adapted to keep the impedance of said resonance element to a predetermined value.

14. The contactless power receiving communication apparatus according to claim 13, further comprising

an excitation element provided between said resonance element and said rectification circuit and adapted to receive supply of the alternating current power from said resonance element through electromagnetic induction and supply the alternating current power to said rectification circuit.

15. A contactless power receiving communication apparatus, comprising:

a resonance element adapted to receive supply of alternating current power from a resonance element of a power supply source contactlessly through resonance;

a rectification circuit adapted to form direct current power from the alternating current power from said resonance element and output the direct current power;

a communication section adapted to carry out a communication process through said resonance element which receives the supply of the alternating current power; and

filter means provided between said resonance element and said rectification circuit and having a frequency band which allows the alternating current power to pass through said filter means, said filter means being adapted to keep the impedance of said resonance element to a predetermined value.

16. The contactless power receiving communication apparatus according to claim 15, further comprising

an excitation element provided between said resonance element and said rectification circuit and adapted to receive supply of the alternating current power from said resonance element through electromagnetic induction and supply the alternating current power to said rectification circuit.

17. A power supplying communication controlling method for a contactless power supplying communication apparatus which includes a resonance element for supplying alternating current power to one or more electronic apparatus by resonance, a communication section configured to carry out a communication process through the resonance element, an alternating current power supply section configured to generate alternating current power of a frequency in accordance with a resonance frequency of the resonance element and supply the generated alternating current power to the resonance element, and a switch circuit provided between the resonance element and the communication section and/or between the resonance element and the alternating current power supply section, comprising a step executed by control means of

controlling the switch circuit upon power supply such that, where the switch circuit is provided between the resonance element and the communication section, the switch circuit is switched so as to cut connection between the resonance element and the communication section but, where the switch circuit is provided between the resonance element and the alternating current power supply section, the switch circuit is switched so as to establish connection between the resonance element and the alternating current power supply section but controlling the switch circuit upon communication such that, where the switch circuit is provided between the resonance element and the communication section, the switch circuit is switched so as to establish connection between the resonance element and the communication section but, where the switch circuit is provided between the resonance element and the alternating current power supply section, the switch circuit is switched so as to cut connection between the resonance element and the alternating current power supply section.

18. A power supplying communication controlling method for a contactless power supplying communication apparatus which includes a resonance element for supplying alternating current power to one or more electronic apparatus by resonance, a communication section configured to carry out a communication process through the resonance element, an alternating current power supply section configured to generate alternating current power of a frequency in accordance with a resonance frequency of the resonance element and supply the generated alternating current power to the resonance element, and a filter circuit provided between the resonance element and the communication section and/or between the resonance element and the alternating current power supply section, comprising a step of

applying filtering using the filter circuit configured such that, where the filter circuit is provided between the resonance element and the communication section, the filter circuit has a frequency band which allows a signal of a communication band to pass through the filter circuit and keeps the impedance of the resonance element to a predetermined value, but where the filter circuit is provided between the resonance element and the alternating current power supply section, the filter circuit has a frequency band which allows the alternating current power to pass therethrough and keeps the impedance of the resonance element to the predetermined value.

19. A power receiving communication controlling method for a contactless power receiving communication apparatus which includes a resonance element for receiving supply of alternating current power from a resonance element of a power supply source contactlessly through resonance, a communication section configured to carry out a communication process through the resonance element, a rectification circuit for forming direct current power from the alternating current power from the resonance element and output the direct current power, and a switch circuit provided between the resonance element and the communication section and/or between the resonance element and the rectification circuit, comprising a step executed by control means of

controlling the switch circuit upon power supply such that, where the switch circuit is provided between the resonance element and the communication section, the switch circuit is switched so as to cut connection between the resonance element and the communication section but, where the switch circuit is provided between the resonance element and the rectification circuit, the switch circuit is switched so as to establish connection between the resonance element and the rectification circuit but controlling the switch circuit upon communication such that, where the switch circuit is provided between the resonance element and the communication section, the switch circuit is switched so as to establish connection between the resonance element and the communication section but, where the switch circuit is provided between the resonance element and the rectification circuit, the switch circuit is switched so as to cut connection between the resonance element and the rectification circuit.

20. A power receiving communication controlling method for a contactless power receiving communication apparatus which includes a resonance element for receiving supply of alternating current power from a resonance element of a power supply source contactlessly through resonance, a communication section configured to carry out a communication process through the resonance element, a rectification circuit for forming direct current power from the alternating current power from the resonance element and output the direct current power, and a filter circuit provided between the resonance element and the communication section and/or between the resonance element and the rectification circuit, comprising a step of

applying filtering using the filter circuit configured such that, where the filter circuit is provided between the resonance element and the communication section, the filter circuit has a frequency band which allows a signal of a communication band to pass through the filter circuit and keeps the impedance of the resonance element to a predetermined value, but where the filter circuit is provided between the resonance element and the rectification circuit, the filter circuit has a frequency band which allows the alternating current power to pass therethrough and keeps the impedance of the resonance element to the predetermined value.