METHOD FOR TRANSMITTING POWER WIRELESSLY, METHOD FOR RECEIVING POWER WIRELESSLY, WIRELESS POWER TRANSMITTING DEVICE, AND WIRELESS POWER RECEIVING DEVICE

• US 20130234661A1
• Filed: 12/08/2011
• Published: 09/12/2013
• Est. Priority Date: 12/17/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yang, Seungryul, Jeon, Beomjin, Park, Jangwoong
• Granted Patent: US 9,608,469 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• 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: H04W 12/06 Authentication
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

According to the present invention, the wireless power transmitting device for transmitting power wirelessly includes: a signal processing unit for processing a communication signal to communicate with an external device; a wireless power transmitting unit for outputting a predetermined amount of wireless power to the external device and transmitting/receiving the communication signal to/from the external device; and a control unit for controlling the signal processing unit to generate a detection signal for detecting an external device in order to output the generated detection signal to the wireless power transmitting unit, to allocate an ID to an external device which outputs an authentication signal on the basis of the time at which the authentication signal is received upon receiving the authentication signal according to the detection signal, and to generate the communication signal having the ID to be outputted to the external device in order to output the generated communication signal to the wireless power transmitting unit, and controlling the signal processing unit to determine whether or not the wireless power is allocated to the external device on the basis of charge-related information when the charge-related information is received from the external device having the ID allocated, to generate wireless power allocation information on whether or not the predetermined amount of wireless power is allocated to be outputted to the external device on the basis of a determination result in order to output the generated wireless power allocation information to the wireless power transmitting unit.

Claims

1. A wireless power transmitting device for transmitting power wirelessly, the wireless power transmitting device comprises:

a signal processing unit processing a communication signal in order to communicate with an external device;

a wireless power transmitter outputting predetermined wireless power to the external device, and communicating the communication signal with the external device;

a controller controlling the signal processing unit, so as to generate a detection signal for detecting an external device and to output the generated detection signal to the wireless power transmitter, and, when an authentication signal respective to the detection signal is received, to allocate an ID (Identification) to the external device, which has outputted the authentication signal, based upon a received time of the authentication signal, to generate the communication signal having the ID for outputting the communication signal to the external device, thereby outputting the generated communication signal to the wireless power transmitter, and controlling the signal processing unit, so as to determine whether or not to allocate the wireless power to the external device based upon charge-related information, when the charge-related information is received from the external device having the ID allocated thereto, and, based upon the determined result, to generate wireless power allocation information respective to whether or not a predetermined amount of the wireless power is allocated in order to be outputted to the external device, thereby outputting the generated wireless power allocation information to the wireless power transmitter.

2. The wireless power transmitting device of claim 1, wherein the detection signal includes a sync signal being outputted to an external target at each predetermined time interval.

3. The wireless power transmitting device of claim 1, wherein the controller controls the wireless power transmitter, so that the wireless power can be transmitted to the external device based upon the allocation of the wireless power.

4. The wireless power transmitting device of claim 1, wherein the charge-related information includes at least one of power amount information requested by the external device and change information respective to a change in the charge-related information, and

wherein the power amount information includes at least one of operation mode power amount information required for an operation of the external device and at least one charge mode power amount information required for charging the external device.

5. The wireless power transmitting device of claim 1, wherein, when the authentication signal is received from a plurality of external devices, the controller allocates the ID to each of the plurality of external devices, and when each of the charge-related information is received from the plurality of external devices, priority levels are assigned to the plurality of external devices based upon the charge-related information, and the allocation information is decided in accordance with the priority levels.

6. The wireless power transmitting device of claim 5, wherein the charge-related information includes at least one of operation mode power amount information required for operating the external device and at least one charge mode power amount information required for charging the external device, and

wherein the controller sets up the priority level, so that, among the plurality of external devices, the external device having the operation mode power amount information can have a higher priority level than the external device having only the charge mode power amount information, and controls the signal processing unit and the wireless power transmitter, so that information on the priority level can be generated and outputted to the external device.

7. The wireless power transmitting device of claim 6, wherein, when a plurality of external devices having the operation mode power amount information is provided, among the external devices, the external device having the ID allocated thereto firsthand is given a priority level.

16. The wireless power transmitting device of claim 2, wherein the controller controls the wireless power transmitter, so that the wireless power can be transmitted to the external device based upon the allocation of the wireless power.

17. The wireless power transmitting device of claim 2, wherein the charge-related information includes at least one of power amount information requested by the external device and change information respective to a change in the charge-related information, and

wherein the power amount information includes at least one of operation mode power amount information required for an operation of the external device and at least one charge mode power amount information required for charging the external device.

18. The wireless power transmitting device of claim 2, wherein, when the authentication signal is received from a plurality of external devices, the controller allocates the ID to each of the plurality of external devices, and when each of the charge-related information is received from the plurality of external devices, priority levels are assigned to the plurality of external devices based upon the charge-related information, and the allocation information is decided in accordance with the priority levels.

8. A wireless power transmitting method for transmitting power wirelessly, the method comprises:

outputting a detection signal in order to detect an external device;

receiving an authentication signal respective to the detection signal;

allocating an ID (Identification) to an external device having outputted the authentication signal, based upon a reception time of the authentication signal, and outputting the ID to the external device;

receiving charge-related information from the external device having the ID allocated thereto;

determining whether or not wireless power is to be allocated to the external device based upon the charge-related information, and, based upon the determined result, outputting the wireless power allocation information respective to whether or not the wireless power is allocated to the external device.

9. The method of claim 8, wherein the detection signal includes a sync signal being outputted to an external target at each predetermined time interval.

10. The method of claim 8, wherein the charge-related information includes at least one of power amount information requested by the external device and change information respective to a change in the charge-related information, and

wherein the power amount information includes at least one of operation mode power amount information required for an operation of the external device and at least one charge mode power amount information required for charging the external device, and

wherein the outputting the ID to the external device includes allocated each ID to the plurality of external devices, when the authentication signal is received from the plurality of external devices, and

wherein the receiving charge-related information includes receiving the charge-related information from the plurality of external devices, and

wherein the determining whether or not wireless power is to be allocated to the external device includes assigning a priority level to the plurality of external device, based upon the charge-related information, and deciding the allocation information in accordance with the priority levels, and

wherein the charge-related information includes at least one of operation mode power amount information required for an operation of the external device and at least one charge mode power amount information required for charging the external device, and

wherein, among the plurality of external devices, the external device having the operation mode power amount information has a higher priority level than the external device having only the charge-related power amount information.

11. The method of claim 10, wherein, when a plurality of external devices having the operation mode power amount information is provided, among the external devices, the external device having the ID allocated thereto firsthand is given a priority level.

19. The method of claim 9, wherein the charge-related information includes at least one of power amount information requested by the external device and change information respective to a change in the charge-related information, and

wherein the power amount information includes at least one of operation mode power amount information required for an operation of the external device and at least one charge mode power amount information required for charging the external device, and

wherein the outputting the ID to the external device includes allocated each ID to the plurality of external devices, when the authentication signal is received from the plurality of external devices, and

wherein the receiving charge-related information includes receiving the charge-related information from the plurality of external devices, and

wherein the determining whether or not wireless power is to be allocated to the external device includes assigning a priority level to the plurality of external device, based upon the charge-related information, and deciding the allocation information in accordance with the priority levels, and

wherein the charge-related information includes at least one of operation mode power amount information required for an operation of the external device and at least one charge mode power amount information required for charging the external device, and

wherein, among the plurality of external devices, the external device having the operation mode power amount information has a higher priority level than the external device having only the charge-related power amount information.

12. A wireless power receiving device for receiving power wirelessly, the wireless power receiving device comprises:

a signal processing unit processing a communication signal in order to communicate with an external device;

a wireless power receiver receiving predetermined wireless power from the external device, and selectively the communication signal to and from the external device;

a controller controlling the signal processing unit, so as to, when a predetermined detection signal is received from the external device, generate an authentication signal respective to the detection signal and to output the generated authentication signal to the wireless power receiver, and controlling the signal processing unit, so as to, when an ID is allocated and received from the external device, based upon the authentication signal, generate charge-related information and to output the generated charge-related information to the wireless power receiver, and controlling the wireless power receiver, when wireless power allocation information respective to an allocation amount of the wireless power is received from the external device based upon the charge-related information, so as to receive the wireless power based upon the wireless power allocation information.

13. The wireless power receiving device of claim 12, wherein the charge-related information includes at least one of power amount information requested by the external device and change information respective to a change in the charge-related information, and wherein the power amount information includes at least one of operation mode power amount information required for an operation of the external device and at least one charge mode power amount information required for charging the external device.

14. A wireless power receiving method for receiving power wirelessly, the method comprises:

receiving a detection signal from a predetermined external device;

outputting an authentication signal respective to the detection signal to the external device;

being allocated with an receiving a predetermined ID (Identification) based upon the authentication signal from the external device;

outputting charge-related information to the external device;

receiving wireless power allocation information respective to an allocated amount of wireless power from the external device based upon the charge-related information;

receiving the wireless power based upon the wireless power allocation information.

15. The method of claim 14, wherein the charge-related information includes at least one of power amount information requested by the external device and change information respective to a change in the charge-related information, and

wherein the power amount information includes at least one of operation mode power amount information required for an operation of the external device and at least one charge mode power amount information required for charging the external device.