Resonance power generator

• US 8,611,111 B2
• Filed: 12/13/2010
• Issued: 12/17/2013
• Est. Priority Date: 12/14/2009
• Status: Active Grant

• 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): Laxton, Gary L
• Application Number:
  US12/966,033
• Publication Number:
  US 20110141772A1
• Time in Patent Office: 1,100 Days
• Field of Search: 307/104, 307/149, 363/178, 363/34, 363/39, 363/40, 363/95
• US Class Current: 363/34
• 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
• 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: H04B 5/79 for data transfer in combination with power transfer

Abstract

A resonance power generator is provided. The resonance power generator includes an alternating current/direct current (AC/DC) rectifier to rectify an input signal of an alternating voltage and an AC generator to generate an AC signal based on the rectified signal that is output from the AC/DC rectifier. The resonance power generator may also include, for example, a control unit to control a frequency of the AC signal, a filter unit to remove a spurious signal or a harmonic element included in the AC signal, a voltage/current amplifier to amplify the AC signal, and a source resonator to transmit a power to a target resonator.

Claims

1. A resonance power generator comprising:

an alternating current/direct current (AC/DC) rectifier configured to rectify an input signal of an alternating voltage;

an AC generator configured to generate an AC signal using the rectified signal output from the AC/DC rectifier;

a control unit configured to control a frequency of the AC signal;

a filter unit configured to remove a spurious signal or a harmonic element included in the frequency-controlled AC signal;

a passive voltage/current amplifier configured to passively amplify the filtered AC signal;

a feedback loop configured to receive an output of the passive voltage/current amplifier, to detect an amount of change in a value of the AC signal that passes through the passive voltage/current amplifier, and to feed back the value of the detected amount of change to the control unit, wherein the control unit compensates the AC signal input to the passive voltage/current amplifier based on the value of the amount of change; and

a source resonator configured to transmit power derived from the passively amplified AC signal to a target resonator.

2. The resonance power generator of claim 1, further comprising:

a voltage/current controller configured to receive the rectified signal output from the AC/DC rectifier, and to control an amount of the power transmitted to the target resonator, wherein

the AC generator generates the AC signal based on an output signal of the voltage/current controller.

3. The resonance power generator of claim 1, wherein:

the AC generator comprises a switching circuit unit, and

the control unit controls a switching frequency of the switching circuit unit.

4. The resonance power generator of claim 1, wherein:

the AC generator comprises an oscillator, and

the control unit controls an oscillating frequency of the oscillator.

5. The resonance power generator of claim 4, wherein the oscillator comprises a pulse sharpener to sharpen a generated oscillation signal.

6. The resonance power generator of claim 1, further comprising:

an AC frequency tuning unit configured to tune the frequency of the AC signal.

7. The resonance power generator of claim 6, wherein:

the feedback loop detects a value of at least one of the frequency of the AC signal having passed through the AC/DC rectifier, a phase of the AC signal, and an amount of the power of the AC signal, and

the AC frequency tuning unit receives feedback of the detected value to tune the frequency of the AC signal.

8. The resonance power generator of claim 7, wherein:

the feedback control and protection circuit receives, from the control unit, information about the AC signal generated by the AC generator, and

the information about the AC signal is transmitted to the AC frequency tuning unit.

9. A resonance power generator, comprising:

an alternating current/direct current (AC/DC) rectifier configured to rectify an input signal of an alternating voltage;

an AC generator configured to generate an AC signal using the rectified signal output from the AC/DC rectifier;

a passive voltage/current amplifier configured to passively amplify the AC signal;

a feedback loop configured to receive an output of the passive voltage/current amplifier, to detect an amount of change of a value of the AC signal that passes through the passively amplified by the passive voltage/current amplifier, and to feed back the value of the detected amount of change;

a control unit to compensate the AC signal output by the AC generator and input to the passive voltage/current amplifier based on the value of the amount of change; and

a source resonator configured to transmit power derived from the passively amplified AC signal to a target resonator.

10. The resonance power generator of claim 9, wherein the AC generator comprises a switching circuit unit, and a frequency of the AC signal output from the AC generator is determined based on the switching frequency of the switching circuit unit.

11. The resonance power generator of claim 9, wherein the AC generator comprises an oscillator, and a frequency of the AC signal that is output from the AC generator is determined based on the oscillating frequency of the oscillator.

12. The resonance power generator of claim 9, further comprising:

a voltage/current controller configured to receive the rectified signal output from the AC/DC rectifier, and to control an amount of the power transmitted to the target resonator, wherein

the AC generator receives an output signal of the voltage/current controller and generates the AC signal based on the output signal.

13. The resonance power generator of claim 9,

wherein the feedback loop detects a value of at least one of the frequency of the AC signal having passed through the AC/DC rectifier, a phase of the AC signal, and an amount of the power of the AC signal, and the resonance power generator further comprises:

an AC frequency tuning unit configured to tune the frequency of the AC signal, based on the detected feedback information; and

a filter unit configured to remove a spurious signal or a harmonic element included in the AC signal, based on the detected feedback information.