Amplification relay device of electromagnetic wave and a radio electric power conversion apparatus using the device

• US 8,259,429 B2
• Filed: 12/15/2010
• Issued: 09/04/2012
• Est. Priority Date: 07/29/2004
• Status: Active Grant

• Current Assignee: Andong National University Industry Academic Cooperation Foundation, JC Protek Company Limited
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Hyung-Joo
• Primary Examiner(s): Jackson, Stephen W
• Application Number:
  US12/969,285
• Publication Number:
  US 20110176251A1
• Time in Patent Office: 629 Days
• Field of Search: 361/113
• US Class Current: 361/113
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/502 the energy repeater being integrated together with the emitter or the receiver
• CPC Class Codes: H02J 7/00712 the cycle being controlled or terminated in response to electric parameters
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04B 7/15535 Control of relay amplifier gain amplifier gain control in general H03G3/00; gain control reducing self - or loop interference H04B7/15578

Abstract

The present invention provides an amplifying repeater, which is constructed in such a manner that a ferrite core is inserted into a coil with a predetermined number of winds to increase an induced electromotive force caused by an increase in flux linkage using a time-varying magnetic field of electromagnetic waves at a position distant from various electromagnetic wave generating sources by a predetermined distance and the induction coil and a variable condenser for inducing resonance are connected to each other to increase current while reducing a resistant component existing in the induction coil to intensify and amplify the magnetic field of electromagnetic waves. Furthermore, the present invention provides a wireless power conversion charging device using the magnetic field of electromagnetic waves, which is located between an electromagnetic wave generating source transmitter and a receiving coil or attached to the transmitter and receiving coil. The wireless power conversion charging device includes a rectifying diode for rectifying an electromotive force induced in a construction in which a resonance and impedance matching variable condenser is connected to a coil in series or in parallel in order to transmit maximum induced power to a charging battery that is a load using electromagnetic waves amplified by the amplifying repeater, and a smoothing condenser for smoothing the rectified voltage. Accordingly, charging power required for various small power electronic devices can be provided and power can be supplied to various loads.

Claims

1. A repeater system positioned between an electromagnetic wave generating source and a receiver, the receiver being configured to receive power from the electromagnetic wave generating source, the repeater system comprising:

a first repeater positioned proximate to the electromagnetic wave generating source; and

a second repeater spaced away from the first repeater,

wherein

the first repeater comprises a first induction coil and a first condenser connected to the first induction coil to construct a first resonance circuit, and

the second repeater comprises a second induction coil and a second condenser connected to the second induction coil to construct a second resonance circuit.

2. The repeater system of claim 1, further comprising:

at least one third repeater comprising a third induction coil and a third condenser connected to the third induction coil to construct a third resonance circuit.

3. The repeater system of claim 2, wherein the at least one third repeater is attached to at least one of the first repeater, the second repeater, and the receiver.

4. The repeater system of claim 1, wherein the power is transmitted wirelessly from the first repeater to the second repeater.

5. A wireless power transmitting system comprising:

an electromagnetic wave generating source configured to generate an electromagnetic wave;

a receiver configured to receive power from the electromagnetic wave generating source; and

a repeater system positioned between the electromagnetic wave generating source and the receiver, the repeater system comprising;

a first repeater positioned proximate to the electromagnetic wave generating source; and

a second repeater spaced away from the first repeater,

wherein the first repeater comprises a first induction coil and a first condenser connected to the first induction coil to construct a first resonance circuit, and

the second repeater comprises a second induction coil, and a second condenser connected to the second induction coil to construct a second resonance circuit.

6. The wireless power transmitting system of claim 5, wherein

the receiver comprises an induction coil and a condenser, and

the receiver is configured to receive, through the repeater system, the power generated by the electromagnetic wave generating source through resonance of the induction coil and the condenser of the receiver.

7. The wireless power transmitting system of claim 5, wherein the receiver is configured to supply the power received from the repeater system to a battery.

8. A method of wirelessly repeating power using at least one repeat LC circuit, the method comprising:

wirelessly receiving, by the at least one repeat LC circuit, power from a transmission LC circuit; and

repeating, by the at least one repeat LC circuit, the power received from the transmission LC circuit, to a reception LC circuit,

wherein each of the at least one repeat LC circuit, the transmission LC circuit, and the reception LC circuit comprises an induction coil, and a condenser connected to the induction coil to construct a resonance circuit, and

the method satisfies at least one of conditions (1) through (3) as follows;

condition (1) in which the power received at the reception LC circuit through the at least one repeat LC circuit is greater than or equal to 0.28 watts,

condition (2) in which a current of the power received at the reception LC circuit through the at least one repeat LC circuit is greater than or equal to 4.7 milliamps, and

condition (3) in which a distance between the transmission LC circuit and the reception LC circuit is greater than or equal to 5 centimeters.

9. The method of claim 8, wherein the at least one repeat LC circuit is attached to the transmission LC circuit or the reception LC circuit.

30. The repeater system of claim 9, wherein the receiver is designed to receive a charging power greater than 1.6 milliwatts (mW) through the second amplifying repeater, within a distance of at least 5 cm from the electromagnetic wave generating source.

31. The repeater system of claim 9, wherein the induction coil of the second amplifying repeater and an induction coil of the receiver are formed on a common core.

32. The repeater system of claim 9, wherein the second amplifying repeater is positioned within a distance of at least 5 cm from the electromagnetic generating source.

10. A wireless power transmitting method comprising,

generating power by an electromagnetic wave generating source;

receiving, by a first repeater, the power from the electromagnetic wave generating source, and wirelessly transmitting the received power to a second repeater; and

wirelessly transmitting, by the second repeater, the power received from the first repeater, to a receiver.

36. The method of claim 10, wherein the first repeater comprises a first induction coil and a first condenser connected to the first induction coil to construct a first resonance circuit, and the second repeater comprises a second induction coil and a second condenser connected to the second induction coil to construct a second resonance circuit.

37. The method of claim 10, wherein the receiver is designed to receive a charging power greater than 1.6 milliwatts (mW) through the second amplifying repeater, within a distance of at least 5 cm from the electromagnetic wave generating source.

38. The method of claim 10, wherein an induction coil of the second amplifying repeater and an induction coil of the receiver are formed on a common core.

39. The method of claim 10, wherein the second amplifying repeater is positioned within a distance of at least 5 cm from the electromagnetic generating source.

11. A wireless power transmitting system comprising:

a first amplifying repeater configured to amplify a magnetic field of an electromagnetic wave;

a second amplifying repeater spaced away from the first amplifying repeater, and configured to repeat the electromagnetic wave; and

a receiver attached to the second amplifying repeater and configured to receive the electromagnetic wave from the second amplifying repeater,

wherein each of the first amplifying repeater, the second amplifying repeater, and the receiver comprises an induction coil and a condenser connected to the induction coil to construct a resonance circuit.

12. The wireless power transmitting system of claim 11, further comprising an electromagnetic wave generating source configured to generate the electromagnetic wave using an electronic wave from inside of a TV or a monitor.

13. The wireless power transmitting system of claim 12, wherein the electromagnetic wave generating source comprises an induction coil to generate an alternating current (AC) power.

14. The wireless power transmitting system of claim 11, wherein the condenser is a variable condenser to perform impedance matching.

15. The wireless power transmitting system of claim 11, wherein the second amplifying repeater is positioned within a distance of 5 centimeters (cm) to 12 cm from the electromagnetic generating source.

16. The wireless power transmitting system of claim 11, wherein the receiver is designed to receive a charging power greater than 1.6 milliwatts (mW) through the second amplifying repeater, within a distance of at least 5 cm from the electromagnetic wave generating source.

17. The wireless power transmitting system of claim 11, wherein the receiver is designed to receive a charging current greater than 1.2 milliamps (mA) through the second amplifying repeater, within a distance of at least 5 cm from the electromagnetic wave generating source.

18. The wireless power transmitting system of claim 11, wherein the receiver is configured to provide, to a load, a constant direct current (DC) voltage using the received electromagnetic wave.

19. The wireless power transmitting system of claim 11, wherein the induction coil of the second amplifying repeater and the induction coil of the receiver are formed on a common core.

33. The repeater system of claim 13, wherein the receiver is designed to receive a charging power greater than 1.6 milliwatts (mW) through the second amplifying repeater, within a distance of at least 5 cm from the electromagnetic wave generating source.

34. The repeater system of claim 13, wherein the induction coil of the second amplifying repeater and an induction coil of the receiver are formed on a common core.

35. The repeater system of claim 13, wherein the second amplifying repeater is positioned within a distance of at least 5 cm from the electromagnetic generating source.

20. A system for amplifying an electromagnetic wave and for converting wireless power, the system comprising:

a first circuit comprising a first induction coil and a first condenser connected to the first induction coil to construct a first resonance circuit;

a second circuit comprising a second induction coil and a second condenser connected to the second induction coil to construct a second resonance circuit;

a third circuit comprising a third induction coil and a third condenser connected to the third induction coil to construct a third resonance circuit;

wherein

the first circuit is configured to wirelessly transmit an electromagnetic wave to the second circuit,

the second circuit is spaced away from the first circuit, and is configured to wirelessly receive the electromagnetic wave from the first circuit and amplify a magnetic field of the received electromagnetic wave, and

the third circuit is spaced away from the second circuit, and is configured to wirelessly receive electromagnetic wave from the second circuit.

21. The system of claim 20, wherein the third circuit is designed to receive a charging power greater than 2.2 milliwatts (mW) through the second circuit, within a distance of at least 10 centimeters (cm) from the first circuit.

22. The system of claim 20, wherein the third circuit is designed to receive a charging current greater than 1.7 milliamps (mA) through the second circuit, within a distance of at least 10 cm from the first circuit.

23. The system of claim 20, further comprising:

a fourth circuit attached to the third circuit and configured to amplify the magnetic field of the electromagnetic wave radiated from the second circuit,

wherein the fourth circuit comprises a fourth induction coil and a fourth condenser connected to the fourth induction coil to construct a fourth resonance circuit.

24. The system of claim 23, wherein the third circuit is designed to receive a charging power greater than 1.3 mW through the fourth circuit, within a distance of at least 14 cm from the first circuit.

25. The system of claim 23, wherein the third circuit is designed to receive a charging current greater than 1 mA through the fourth circuit, within a distance of at least 14 cm from the first circuit.

26. A repeater system positioned between an electromagnetic wave generating source and a receiver, and the receiver being configured to receive power from the electromagnetic wave generating source, the repeater system comprising:

a first repeater positioned proximate to the electromagnetic wave generating source and configured to amplify a magnetic field of an electromagnetic wave generated by the electromagnetic wave generating source; and

a second repeater spaced away from the first repeater and configured to amplify the magnetic field of the electromagnetic wave radiated from the first repeater,

wherein

the first repeater comprises a first induction coil and a first condenser connected to the first induction coil to construct a first resonance circuit, and

the second repeater comprises a second induction coil and a second condenser connected to the second induction coil to construct a second resonance circuit.

27. The repeater system of claim 26, further comprising:

at least one third repeater comprising a third induction coil and a third condenser connected to the third induction coil to construct a third resonance circuit.

40. The repeater system of claim 26, wherein the receiver is designed to receive a charging power greater than 1.6 milliwatts (mW) through the second amplifying repeater, within a distance of at least 5 cm from the electromagnetic wave generating source.

41. The repeater system of claim 26, wherein the induction coil of the second amplifying repeater and an induction coil of the receiver are formed on a common core.

42. The repeater system of claim 26, wherein the second amplifying repeater is positioned within a distance of at least 5 cm from the electromagnetic generating source.

28. A method of charging a battery, the method comprising:

amplifying a magnetic field of an electromagnetic wave at a position proximate to an electromagnetic wave generating source;

re-amplifying the magnetic field of the electromagnetic wave at a position away from the electromagnetic wave generating source;

generating a direct current (DC) voltage by rectifying an electromotive force induced by the electromagnetic wave of which the magnetic field is re-amplified; and

providing the generated DC voltage to the battery,

wherein the amplifying is performed by an induction coil and a condenser connected to the induction coil to construct a resonance circuit.

29. A method of supplying a power to a load, the method comprising:

amplifying a magnetic field of an electromagnetic wave at a position proximate to an electromagnetic wave generating source;

re-amplifying the magnetic field of the electromagnetic wave at a position away from the electromagnetic wave generating source;

generating a direct current (DC) voltage by rectifying an electromotive force induced by the electromagnetic wave of which the magnetic field is re-amplified; and

providing the generated DC voltage to the load,

wherein the amplifying is performed by an induction coil and a condenser connected to the induction coil to construct a resonance circuit.

43. The method of claim 29, wherein the electromotive force is greater than 1.6 milliwatts (mW) within a distance of at least 5 cm from the electromagnetic wave generating source.

44. The method of claim 29, wherein the electromotive force is greater than 1.2 milliamps (mA) within a distance of at least 5 cm from the electromagnetic wave generating source.