APPARATUS AND METHOD OF CONTROLLING WIRELESS POWER TRANSMISSION

• US 20130057079A1
• Filed: 09/06/2012
• Published: 03/07/2013
• Est. Priority Date: 09/07/2011
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, Se-Ho, Kim, Ki-Hyun, Kim, Joon-II, Park, Jin-Hyoung, Lee, Woo-Ram, Lee, Kyung-Woo
• Application Number:
  US13/605,381
• Publication Number:
  US 20130057079A1
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• 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 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

An apparatus for controlling wireless power transmission includes a near-field wireless communication antenna for receiving wireless power transmission control signals from a power transmitting device at a communication frequency, a near-field wireless communication Integrated Circuit (IC) for delivering wireless power transmission control messages based on the wireless power transmission control signals received through the near-field wireless communication antenna to a power IC, a Wireless Power Transmission (WPT) coil for resonating at a frequency band corresponding to a resonant frequency of the power transmitting device, to receive power supplied from the power transmitting device, and the power IC for controlling output of a constant voltage, using the supply power received by the WPT coil, based on the wireless power transmission control messages from the near-field wireless communication IC.

Claims

1. An apparatus for controlling wireless power transmission, comprising:

a near-field wireless communication antenna for receiving wireless power transmission control signals from a power transmitting device at a communication frequency;

a near-field wireless communication Integrated Circuit (IC) for delivering wireless power transmission control messages based on the wireless power transmission control signals received through the near-field wireless communication antenna to a power IC;

a Wireless Power Transmission (WPT) coil for resonating at a frequency band identical to a resonant frequency of the power transmitting device, to receive supply power from the power transmitting device; and

the power IC for controlling output of a constant voltage, using the supply power received by the WPT coil based on the wireless power transmission control messages from the near-field wireless communication IC.

2. The apparatus of claim 1, wherein the near-field wireless communication includes Near Field Communication (NFC) communication.

3. The apparatus of claim 1, wherein the communication frequency band and the power transmission frequency band are different from each other.

4. The apparatus of claim 3, wherein the communication frequency band includes a 13.56 MHz band.

5. The apparatus of claim 3, wherein the power transmission frequency band includes a 6.78 MHz band or 100˜

200 KHz band.

6. The apparatus of claim 3, wherein the near-field wireless communication antenna and the WPT coil are in an oval shape, sharing a center, each being arranged inside or outside, relative to the oval.

8. The method of claim 6, wherein the near-field wireless communication includes Near Field Communication (NFC) communication.

9. The method of claim 6, wherein the communication frequency band and the power transmission frequency band are different from each other.

10. The method of claim 9, wherein the communication frequency band includes a 13.56 MHz band.

11. The method of claim 9, wherein the power transmission frequency band includes a 6.78 MHz band or 100˜

200 KHz band.

7. A method of controlling wireless power transmission, comprising:

receiving wireless power transmission control signals from a power transmitting device through a near-field wireless communication antenna at a communication frequency;

delivering wireless power transmission control messages based on the received wireless power transmission control signals to a power Integrated Circuit (IC); and

outputting a constant voltage, using supply power received by a Wireless Power Transmission (WPT) coil, based on the wireless power transmission control messages.