Wireless power transmitting device and method for supplying wireless power thereof
地域：
Suwon-si
摘要
A wireless power transmitting device is disclosed. The wireless power transmitting device includes a first communicator comprising communication circuitry configured to communicate with a wireless power receiving device, a wireless power transmitter configured to supply wireless power to the wireless power receiving device, and a first controller configured to control the wireless power transmitter to supply initiating power for obtaining wireless power efficiency to the wireless power receiving device and to control the wireless power transmitter to supply driving power for driving an electronic device including the wireless power receiving device to the wireless power receiving device based on the wireless power efficiency being a predetermined value or greater based on information received from the wireless power receiving device through the first communicator.
說明書
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This application is based on and claims priority under 35 U.S.C. § 119 to Korean Patent Application No. 10-2019-0044443, filed on Apr. 16, 2019, in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference herein in its entirety.
The disclosure relates to a wireless power transmitting device and a method for supplying power to an electronic device using the same.
A wireless power system may include a wireless power transmitting device that wirelessly transmits power for driving an electronic device and a wireless power receiving device that receives wireless power from the wireless power transmitting device. For example, wireless power may be supplied from the wireless power transmitting device connected to a power source to the wireless power receiving device connected to a functional part of an electronic device.
權(quán)利要求
What is claimed is:1. A display device comprising:a communicator comprising communication circuitry configured to communicate with a wireless power receiving device included in another display device; a wireless power transmitter configured to supply wireless power to the wireless power receiving device; and a first controller configured to control the display device to:control the wireless power transmitter to supply initiating power having a first duty ratio for obtaining wireless power efficiency to the wireless power receiving device, control the wireless power transmitter to supply driving power having a second duty ratio greater than the first duty ratio without modifying a resonance frequency used to supply the initiating power for driving the other display device including the wireless power receiving device to the wireless power receiving device based on the wireless power efficiency being a predetermined value or greater based on information received from the wireless power receiving device through the first communicator, and control the communicator to transmit image data to the other display device, wherein the display device is disposed on a first surface of a structure, and wherein the other display device including the wireless power receiving device is disposed on a second surface of the structure, the second surface being different from the first surface. 2. The display device as claimed in claim 1 , wherein the first controller is configured to control the wireless power transmitter to supply the initiating power to the wireless power receiving device until the wireless power efficiency reaches the predetermined value or greater to prevent and/or reduce a leakage magnetic field. 3. The display device as claimed in claim 1 , wherein the first controller is configured to control the wireless power transmitter to supply the driving power to the wireless power receiving device based on the wireless power efficiency being equal to or greater than the predetermined value based on alignment of a wireless power transmission coil included in the display transmitting device and a wireless power reception coil included in the wireless power receiving device. 4. The display device as claimed in claim 1 , wherein the first controller is configured to control the initiating power and/or the driving power to be supplied to the wireless power receiving device by adjusting a duty ratio of an inverter included in the wireless power transmitter. 5. The display device as claimed in claim 1 , wherein the information received from the wireless power receiving device includes a wireless power efficiency value between the wireless power receiving device and the wireless power transmitting device. 6. A display device comprising:a display panel; a communicator comprising communication circuitry configured to communicate with a wireless power transmitting device included in another display device; a wireless power receiver configured to receive wireless power from the wireless power transmitting device; and a controller configured to control the display device to:receive, using the wireless power receiver, initiating power having a first duty ratio for obtaining wireless power efficiency from the wireless power transmitting device, obtain wireless power efficiency based on information received by the wireless power receiver through the communicator and the initiating power received by the wireless power receiver, transmit the obtained wireless power efficiency to the wireless power transmitting device through the communicator, based on the obtained wireless power efficiency being a predetermined value or greater, receive, using the wireless power receiver, driving power having a resonance frequency used to supply the initiating power from the wireless power transmitting device and a second duty ratio greater than the first duty ratio, and provide the driving power output from the wireless power receiver to the display panel, control the communicator to receive image data from the other display device, display the received image data on the display panel, wherein the other display device including the wireless power transmitting device is disposed on a first surface of a structure, and wherein the display device is disposed on a second surface of the structure, the second surface being different from the first surface. 7. The display device as claimed in claim 6 , whereinthe controller is configured to control the driving power through the wireless power receiver to the display panel based on the wireless power efficiency being equal to or greater than the predetermined value based on alignment of a wireless power transmission coil included in the wireless power transmitting device and a wireless power reception coil included in the display device. 8. The display device as claimed in claim 6 , whereinthe information received by the display device includes a power value of the wireless power transmitting device. 9. The display device as claimed in claim 6 , whereinthe controller is configured to control a heavy load switch between the display device and the display panel to provide the driving power to the display panel. 10. The display device as claimed in claim 9 , whereinthe controller is configured control a switch between the wireless power receiver and the display panel to provide the driving power to the display panel as a control signal for turning on the heavy load switch received from the wireless power transmitting device through the communicator. 11. The display device as claimed in claim 6 , whereinthe controller is configured to transmit a control signal related to the obtained wireless power efficiency to a user interface providing the wireless power efficiency information. 12. The display device as claimed in claim 11 , wherein the user interface is configured to provide the wireless power efficiency information using a plurality of light emitting diodes (LEDs). 13. A method of supplying power using a display device, the method comprising:supplying initiating power having a first duty ratio for obtaining wireless power efficiency to a wireless power receiving device included in another display device; receiving information related to the wireless power efficiency from the wireless power receiving device; supplying driving power having a second duty ratio greater than the first duty ratio without modifying a resonance frequency used to supply the initiating power for driving the other display device including the wireless power receiving device to the wireless power receiving device based on the wireless power efficiency being a predetermined value or greater based on the received information; and transmitting image data to the other display device, wherein the display device is disposed on a first surface of a structure, and wherein the other display device including the wireless power receiving device is disposed on a second surface of the structure, the second surface being different from the first surface. 14. The method as claimed in claim 13 , whereinthe supplying of the initiating power comprises supplying the initiating power to the wireless power receiving device until the wireless power efficiency reaches the predetermined value or greater to prevent and/or reduce a leakage magnetic field. 15. The method as claimed in claim 13 , whereinthe supplying of the driving power comprises supplying the driving power to the wireless power receiving device based on the wireless power efficiency being equal to or greater than the predetermined value based on alignment of a wireless power transmission coil included in the display device and a wireless power reception coil included in the wireless power receiving device. 16. The method as claimed in claim 13 , whereinthe supplying of the initiating power or the driving power comprises supplying the initiating power or the driving power to the wireless power receiving device by adjusting a duty ratio of an inverter. 17. A method of supplying power using a display device, the method comprising:receiving, using the display device, initiating power having a first duty ratio for obtaining wireless power efficiency from a wireless power transmitting device included in another display device; receiving information related to wireless power efficiency from the wireless power transmitting device; obtaining wireless power efficiency based on the received information and the initiating power received using a wireless power receiver included in the display device; transmitting the obtained wireless power efficiency to the wireless power transmitting device;based on the obtained wireless power efficiency being a predetermined value or greater, receiving, using the wireless power receiver, driving power having a resonance frequency used to supply the initiating power from the wireless power transmitting device and a second duty ratio greater than the first duty ratio, and providing the driving power to a display panel included in the display device; receiving image data from the other display device; and displaying the received image data on the display panel, wherein the other display device includes the wireless power transmitting device is disposed on a first surface of a structure, and wherein the display device is disposed on a second surface of the structure, the second surface being different from the first surface. 18. The method as claimed in claim 17 , whereinthe providing of the driving power to the display panel comprises providing the driving power to the display panel based on the wireless power efficiency being equal to or greater than the predetermined value based on alignment of a wireless power transmission coil included in the wireless power transmitting device and a wireless power reception coil included in the display device. 19. The method as claimed in claim 17 , whereinthe information related to the wireless power efficiency includes a power value of the wireless power transmitting device. 20. The method as claimed in claim 17 , further comprising turning on a heavy load switch between the display device and the display panel to provide the driving power to the display panel.
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