Resonance power generator and method, and resonance power receiver and method

• US 8,598,746 B2
• Filed: 12/14/2010
• Issued: 12/03/2013
• Est. Priority Date: 12/14/2009
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Nam Yun, Hong, Young Tack, Kwon, Sang Wook, Park, Eun Seok, Ryu, Young Ho
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Pham, Duc M
• Application Number:
  US12/967,609
• Publication Number:
  US 20110140542A1
• Time in Patent Office: 1,085 Days
• Field of Search: 307/104, 307/140, 307/149, 323355-366
• US Class Current: 307/104
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence

Abstract

Provided is a resonance power generator and a resonance power receiver, and methods thereof. The resonance power generator may include a frequency generator to receive a direct current (DC) voltage, and to generate a power carrier signal, a high voltage matching transformer to be adjusted to enable an output voltage to be greater than an input voltage, a high current matching transformer to be adjusted to enable an output current to be greater than an input current, a switching unit to switch between the high voltage matching transformer and the high current matching transformer, a control unit to control the switching unit in accordance with an input signal, and a power resonator to transmit a power to a target resonator.

Claims

1. A resonance power generator, comprising:

a frequency generator configured to;

receive a direct current (DC) voltage; and

generate a power carrier signal;

a high voltage matching transformer configured to be adjusted to enable an output voltage to be greater than an input voltage;

a high current matching transformer configured to be adjusted to enable an output current to be greater than an input current;

a switching unit configured to switch between the high voltage matching transformer and the high current matching transformer;

a control unit configured to control the switching unit in accordance with an input signal; and

a power resonator configured to transmit a power to a target resonator.

2. The resonance power generator of claim 1, further comprising an alternating current/direct current (AC/DC) converter configured to:

receive an alternating current (AC) voltage; and

convert the received AC voltage to the DC voltage.

3. The resonance power generator of claim 1, wherein the high voltage matching transformer is further configured to be adjusted to enable a winding ratio of a second winding side to be greater than a winding ratio of a first winding side.

4. The resonance power generator of claim 1, wherein the high current matching transformer is further configured to be adjusted to enable a winding ratio of a first winding side to be greater than a winding ratio of a second winding side.

5. The resonance power generator of claim 1, wherein one of the high voltage matching transformer and the high current matching transformer comprises a transformer for which a resistance value of a load of an output is adjusted.

6. The resonance power generator of claim 1, wherein the input signal comprises a user input signal.

7. The resonance power generator of claim 1, wherein the input signal comprises a signal fed back from the target resonator.

8. The resonance power generator of claim 1, further comprising a power amplifier to amplify a power of the power carrier signal.

9. A resonance power receiver, comprising:

a target resonator configured to receive a power transmitted from a power resonator;

a rectifier configured to rectify the power into a direct current (DC) signal;

a sensing unit configured to;

receive the DC signal; and

sense a high current power and a high voltage power;

an alternating current/direct current (AC/DC) conversion unit configured to convert each of the high current power and the high voltage power into a DC voltage; and

a control unit configured to feed back, to the power resonator, high voltage power information or high current power information in order to control a switching unit of the power resonator to switch between a high voltage matching transformer and a high current matching transformer.

10. A method for a resonance power generator, the method comprising:

receiving a direct current (DC) voltage;

generating a power carrier signal;

adjusting a high voltage matching transformer to enable an output voltage to be greater than an input voltage;

adjusting a high current matching transformer to enable an output current to be greater than an input current;

switching between the high voltage matching transformer and the high current matching transformer;

controlling the switching in accordance with an input signal; and

transmitting a power to a target resonator.

11. The method of claim 10, further comprising:

receiving an alternating current (AC) voltage; and

converting the received AC voltage to the DC voltage.

12. The method of claim 10, further comprising adjusting the high voltage matching transformer to enable a winding ratio of a second winding side to be greater than a winding ratio of a first winding side.

13. The method of claim 10, further comprising adjusting the high current matching transformer to enable a winding ratio of a first winding side to be greater than a winding ratio of a second winding side.

14. The method of claim 10, wherein one of the high voltage matching transformer and the high current matching transformer comprises a transformer for which a resistance value of a load of an output is adjusted.

15. The method of claim 10, wherein the input signal comprises a user input signal.

16. The method of claim 10, wherein the input signal comprises a signal fed back from the target resonator.

17. The method of claim 10, further comprising amplifying a power of the power carrier signal.

18. A method for a resonance power receiver, the method comprising:

receiving a power transmitted from a power resonator;

rectifying the power into a direct current (DC) signal;

receiving the DC signal;

sensing a high current power and a high voltage power;

converting each of the high current power and the high voltage power into a DC voltage; and

feeding back, to the power resonator, high voltage power information or high current power information in order to control a switching unit of the power resonator to switch between a high voltage matching transformer and a high current matching transformer.