SYSTEM FOR MULTI-BAND POWER TRANSMISSION WITH MULTIPLE PROTOCOLS

• US 20160359370A1
• Filed: 05/23/2016
• Published: 12/08/2016
• Est. Priority Date: 06/05/2015
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: PARK, Soo Young, PARK, Su Bin, LEE, Jong Heon
• Granted Patent: US 10,284,016 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• 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 7/00302 Overcharge protection
• CPC Class Codes: H02J 7/00304 Overcurrent protection
• CPC Class Codes: H02J 7/00308 Overvoltage protection
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

An apparatus for receiving a wireless power signal includes a detection unit configured to discover a power signal having plural components, each generated by plural wireless charging techniques, a recognition unit configured to analyze the power signal to recognize which component of the power signal can be corresponding to each of the plural wireless charging techniques, a combination unit configured to combine outputs of the recognition unit into a single energy signal, and a charging unit configured to use the energy signal for charging a battery.

Claims

1. An apparatus for receiving a wireless power signal, comprising:

a detection unit configured to discover a power signal having plural components, each generated by plural wireless charging techniques;

a recognition unit configured to analyze the power signal to recognize which component of the power signal can be corresponding to each of the plural wireless charging techniques;

a combination unit configured to combine outputs of the recognition unit into a single energy signal; and

a charging unit configured to use the energy signal for charging a battery.

2. The apparatus according to claim 1, wherein the plural wireless charging techniques comprises a charging method using at least one of electromagnetic induction, magnetic resonance and a radio frequency signal.

3. The apparatus according to claim 2, wherein the plural wireless charging techniques comprises plural charging method using the electromagnetic induction but transceiving a combination signal of power signals or feedback signals which have different structures and/or information.

4. The apparatus according to claim 2, wherein the charging method using the electromagnetic induction comprises at least one way which is standardized by the Wireless Power Consortium (WPC) and/or the Power Matters Alliance (PMA), the charging method using the magnetic resonance comprises a way which is standardized by the Alliance for Wireless Power (A4WP), and the charging method using the radio frequency signal comprises a way using a radio-wave or a microwave.

5. The apparatus according to claim 1, wherein the detection unit comprises at least one of a coil and an antenna which is operable according to the plural wireless charging techniques.

6. The apparatus according to claim 1, wherein the recognition unit comprises at least one frequency filter for passing the power signal with a particular frequency band.

7. The apparatus according to claim 1, further comprising a control unit configured to control that the power signal is dynamically analyzed and/or combined by the recognition unit and/or the combination unit according to a power receiving efficiency, a level of voltage or current, or a requirement for a subject charging device, or to engage with a processing system equipped in the apparatus or an external device so as to control the recognition unit and/or the combination unit.

8. The apparatus according to claim 7, wherein the control unit comprises a feedback unit configured to feedback operational results of the recognition unit and/or the combination unit.

9. The apparatus according to claim 1, wherein the combination unit comprises a power combiner.

10. The apparatus according to claim 1, further comprising a reference signal generator configured to generate a reference signal used for effectively detecting the plural components of the power signal in a case when the power signal includes the plural components generated based on the plural wireless charging techniques, and to supply the reference signal into the detection unit.

11. A method for receiving a wireless power signal, comprising:

discovering a power signal having plural components, each generated by plural wireless charging techniques;

analyzing the power signal to recognize which component of the power signal can be corresponding to each of the plural wireless charging techniques;

combining recognized signals into a single energy signal; and

charging a battery by using the energy signal.

12. The method according to claim 11, wherein the plural wireless charging techniques comprises a charging method using at least one of electromagnetic induction, magnetic resonance and a radio frequency signal.

13. The method according to claim 12, wherein the charging method using the electromagnetic induction comprises at least one way which is standardized by the Wireless Power Consortium (WPC) and/or the Power Matters Alliance (PMA), the charging method using the magnetic resonance comprises a way which is standardized by the Alliance for Wireless Power (A4WP), and the charging method using the radio frequency signal comprises a way using a radio-wave or a microwave.

14. The method according to claim 11, wherein the discovering a power signal comprises controlling at least one of a coil and an antenna according to the plural wireless charging techniques.

15. The method according to claim 11, wherein the combining outputs of the recognition unit comprises controlling at least one frequency filter for disassembling the power signal with a particular frequency band.

16. The method according to claim 11, wherein the combining outputs of the recognition unit comprises adjusting a coupling factor of the outputs of the recognition unit.

17. The method according to claim 11, wherein the analyzing the power signal and the combining recognized signals are controlled according to a power receiving efficiency, a level of voltage or current, or a requirement for a subject charging device.

18. The method according to claim 17, further comprising feeding back results of the analyzing the power signal and the combining recognized outputs.

19. An apparatus for transmitting a wireless power signal, comprising:

a signal generator configured to generate plural power signals which are transferred according to plural wireless charging techniques;

a mixer configured to mix the plural power signals according to a combination possibility of the plural power signals; and

a transmitter configured to transmit one of the plural power signals and a mixed signal of the plural power signals.

20. The apparatus according to claim 19, wherein the combination possibility is determined based on the plural wireless charging techniques, and if the plural power signals have no combination possibility, the mixer delivers the plural power signals into the transmitter respectively.