APPARATUS AND METHOD FOR WIRELESS CHARGING

• US 20130214734A1
• Filed: 02/21/2013
• Published: 08/22/2013
• Est. Priority Date: 02/21/2012
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kang, Noh-Gyoung, Bae, Tae-Han, Son, Jae-Seung, Won, Eun-Tae, Jung, Hee-Won
• Application Number:
  US13/772,824
• Publication Number:
  US 20130214734A1
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

An apparatus and a method for wireless charging are disclosed. The method includes transmitting a wireless power supply apparatus search signal, receiving a wireless power supply apparatus search response signal and recognizing multiple apparatuses for wirelessly supplying power, sending a request for wirelessly supplying power to a first apparatus, sending a request for cooperative charging to a second apparatus, and receiving first and second power from the first and the second apparatuses, respectively, and performing wireless charging according to reception of a cooperative charging permission signal from the second apparatus for wirelessly supplying power.

Claims

1. A method for wireless charging in an apparatus that wirelessly receives power, the method comprising:

transmitting, by the apparatus, a wireless power supply apparatus search signal;

receiving a wireless power supply apparatus search response signal;

recognizing multiple apparatuses for wirelessly supplying power, based on the wireless power supply apparatus search response signal;

sending a request for wirelessly supplying power, to a first apparatus for wirelessly supplying power among the multiple apparatuses;

receiving a cooperative charging enable signal from the first apparatus;

sending a request for cooperative charging to a second apparatus for wirelessly supplying power, based on the cooperative charging enable signal from the first apparatus;

receiving a cooperative charging permission signal from the second apparatus;

receiving first power and second power from the first apparatus and the second apparatus, respectively; and

performing wireless charging using the first power and the second power.

2. The method of claim 1, wherein the first apparatus has a highest possibility of supplying power to the apparatus for wirelessly receiving power among the multiple apparatuses.

3. The method of claim 2, wherein the first apparatus is closest in distance to the apparatus for wirelessly receiving power, among the multiple apparatuses.

4. An apparatus for wirelessly receiving power, the apparatus comprising:

a communication unit for communicating with at least one apparatus that wirelessly supplies power;

a power receiver for wirelessly receiving power from multiple apparatuses that wirelessly supply power; and

a controller for controlling the communication unit to transmit a wireless power supply apparatus search signal, recognizing the multiple apparatuses that wirelessly supply power based on a wireless power supply apparatus search response signal received through the communication unit, sending a request for wirelessly supplying power to a first apparatus that wirelessly supplies power among the multiple apparatuses, controlling the communication unit to transmit a cooperative charging request signal to a second apparatus that wirelessly supplies power based on a cooperative charging enable signal received from the first apparatus, and controlling the power receiver to receive first power and second power from the first apparatus and the second apparatus, respectively, when a cooperative charging permission signal is received from the second apparatus.

5. The apparatus of claim 4, further comprising a battery unit for charging using the first power and the second power.

6. The apparatus of claim 4, wherein the first apparatus has a highest possibility of supplying power to the apparatus for wirelessly receiving power among the multiple apparatuses.

7. The apparatus of claim 6, wherein the first apparatus is closest in distance to the apparatus for wirelessly receiving power, among the multiple apparatuses.

8. A method for wireless charging by an apparatus that wirelessly supplies power, the method comprising:

receiving, by the apparatus, a wireless power supply apparatus search signal from an charging apparatus that wirelessly receives power;

transmitting a wireless power supply apparatus search response signal to the charging apparatus;

receiving a power supply request signal including an amount of power required by the charging apparatus;

determining whether an amount of power capable of being supplied by the apparatus is at least equal to the amount of power required by the charging apparatus; and

transmitting a cooperative charging enable signal, when the amount of power capable of being supplied is not at least equal to the amount of power required by the charging apparatus.

9. The method of claim 8, further comprising:

receiving a cooperative power supply request signal from the charging apparatus; and

wirelessly transmitting power to the charging apparatus.

10. A method for wireless charging by an apparatus that wirelessly supplies power, the method comprising:

receiving a cooperative charging request signal including an amount of power requiring cooperation from a charging apparatus that wirelessly receives power;

determining whether an amount of power capable of being supplied by that apparatus is at least equal to the amount of power requiring the cooperation; and

transmitting a cooperative charging permission signal to the charging apparatus, when the amount of power capable of being supplied is at least equal to the amount of power requiring the cooperation.

11. The method of claim 10, further comprising:

receiving a cooperative power supply request signal from the charging apparatus; and

wirelessly transmitting power to the charging apparatus.

12. An apparatus that wirelessly supplies power to a charging apparatus that wirelessly receives power, the apparatus comprising:

a communication unit for communicating with the charging apparatus;

a power supply unit for wirelessly transmitting power; and

a controller for receiving a wireless power supply apparatus search signal from the charging apparatus through the communication unit, controlling the communication unit to transmit a wireless power supply apparatus search response signal, determining whether an amount of power capable of being supplied by the apparatus is at least equal to an amount of power required by the charging apparatus in response to a power supply request signal received from the charging apparatus, and transmitting a cooperative charging enable signal through the communication unit, when the amount of power capable of being supplied by the apparatus is not at least equal to the amount of power required by the charging apparatus.

13. The apparatus of claim 12, wherein the power supply controller determines whether the amount of power capable of being supplied by the apparatus is at least equal to an amount of power requiring cooperation in response to a cooperative charging request signal including the amount of power requiring the cooperation received from the charging apparatus, and transmits a cooperative charging permission signal through the communication unit, when the amount of power capable of being supplied by the apparatus is at least equal to the amount of power requiring the cooperation.