METHOD AND APPARATUS FOR CONTROLLING WIRELESS POWER TRANSMISSION

• US 20120293010A1
• Filed: 05/17/2012
• Published: 11/22/2012
• Est. Priority Date: 05/17/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, Sung-Bum, LEE, Young-Min, KIM, Hong-Kweun, PARK, Se-Ho, LEE, Woo-Ram, KIM, Joon-II, HAN, Seung-Woo
• Granted Patent: US 9,166,446 B2
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/80 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 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H02J 7/0047 with monitoring or indicating devices or circuits

Abstract

A wireless power transmission controlling apparatus and method are provided. The apparatus includes a power amplifier that receives a source power, amplifies the received source power, and outputs a wireless power transmission signal from the amplified received source power, a band pass filter that filters the wireless power transmission signal, and passes a harmonic wave corresponding to a communication frequency band, and a communication unit that transmits a wireless power transmission control signal using the harmonic wave corresponding to the communication frequency band.

Claims

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

a power amplifier that receives a source power, amplifies the received source power, and outputs a wireless power transmission signal from the amplified received source power;

a band pass filter that filters the wireless power transmission signal, and passes a harmonic wave corresponding to a communication frequency band; and

a communication unit that transmits a wireless power transmission control signal using the harmonic wave corresponding to the communication frequency band.

2. The apparatus of claim 1, wherein the communication unit performs a near field communication (NFC).

3. The apparatus of claim 1, further comprising a resonance unit that resonates at a wireless power transmission frequency band to output the wireless power transmission signal.

4. The apparatus of claim 3, wherein the communication frequency band and the wireless power transmission frequency band are different frequency bands.

5. The apparatus of claim 1, wherein the communication frequency band is 13.56 megahertz (MHz).

6. The apparatus of claim 3, wherein the wireless power transmission frequency band is 6.78 MHz.

9. The method of claim 6, further comprising transmitting the wireless power transmission signal in a wireless power transmission frequency band.

10. The method of claim 9, wherein the communication frequency band and the wireless power transmission frequency band are different band frequency bands.

12. The method of claim 9, wherein the wireless power transmission frequency band is 6.78 MHz.

7. A method of controlling wireless power transmission by a power supplying apparatus, the method comprising:

receiving, by the power supplying apparatus, a source power;

amplifying the received source power;

outputting a wireless power transmission signal using the amplified received source power;

extracting a harmonic wave corresponding to a communication frequency band from the wireless power transmission signal; and

transmitting a wireless power transmission control signal using the harmonic wave corresponding to the communication frequency band.

8. The method of claim 7, wherein the power supplying apparatus extracts the harmonic wave corresponding to the communication frequency band from the wireless power transmission signal, in response to a request for transmission of the wireless power transmission control signal.

11. The method of claim 7, wherein the communication frequency band is 13.56 megahertz (MHz).