KR102042103B1 - Apparatus of magnetic resonance using wireless power transmission using higher order mode resonance and receiving terminal thereof, method for transmitting and receiving wireless power by using the same - Google Patents
Apparatus of magnetic resonance using wireless power transmission using higher order mode resonance and receiving terminal thereof, method for transmitting and receiving wireless power by using the same Download PDFInfo
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- KR102042103B1 KR102042103B1 KR1020130021915A KR20130021915A KR102042103B1 KR 102042103 B1 KR102042103 B1 KR 102042103B1 KR 1020130021915 A KR1020130021915 A KR 1020130021915A KR 20130021915 A KR20130021915 A KR 20130021915A KR 102042103 B1 KR102042103 B1 KR 102042103B1
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Abstract
Magnetic resonance wireless power transmission and reception method using the high-order mode resonance of the present invention, the process of matching the basic mode frequency signal and the higher-order mode frequency signal to a multi-band frequency signal with respect to the square wave signal, and the matched basic mode frequency signal and Simultaneously transmitting the high-order mode frequency signal to the multi-resonance receiving resonator; and output impedances at the fundamental mode frequency and the higher-order mode frequency received through the receiving resonator. And converting the converted multi-band frequency signal into a power required by the load and transferring the converted multi-band frequency signal to the load.
Description
The present invention relates to a wireless power transmission technique using magnetic resonance, and more particularly, to a magnetic resonance wireless power transmission apparatus using a high-order mode resonance suitable for overcoming the efficiency degradation according to the basic characteristics of the conventional wireless power transmission wireless magnetic resonance method; A receiving terminal and a method for transmitting and receiving wireless power thereof.
In general, the magnetic resonance type wireless power transmission is a method of generating a frequency signal corresponding to the basic mode resonance of the resonator in the transmitter and transmitting the power to the resonator to wirelessly transmit power. In order to increase, the transmission device is composed of inverter or switching amplifier structure.
The basic output waveform in the time domain of such an inverter or switching amplifier structure is represented by a square wave form. The square wave type signal exhibits about 85% of the total power at the fundamental mode resonance frequency and the remaining power appears at the higher-order mode resonance frequency signal. do. Conventional magnetic resonance wireless power transmission method transmits the basic mode resonant frequency signal of the resonator with high efficiency, but the higher-order mode resonant frequency signal shows very low transmission efficiency. The high-order mode resonant frequency signal is not transmitted well.
FIG. 1 is a block diagram showing the configuration of a typical magnetic resonance wireless power transmitter. In the conventional magnetic resonance wireless power transmitter, a
Referring to FIG. 1, the
2 is a characteristic graph illustrating transfer characteristics between a conventional magnetic resonance transmission resonator and a reception resonator.
Referring to FIG. 2, the transmission characteristics between the conventional magnetic
3 illustrates waveforms in a time domain and waveforms in a frequency domain of square waves, which are output waveforms of a general high efficiency transmitter. Referring to FIG. 3, a time-domain waveform of a square wave is represented by a shape in which the same waveform is repeated at regular intervals, and the frequency-domain waveform of the square wave is represented by the following equation (Equation 1) below. The signal is generated every time.
When the power ratio for each mode in the square wave frequency domain is calculated by squaring each coefficient of the fundamental mode frequency and the higher-order frequency of the square wave shown in
As shown in FIG. 3 and
The present invention is to propose a method for improving the power transmission efficiency of the conventional magnetic resonance method in the wireless power transmission using the magnetic resonance method, the present invention is to provide a fundamental mode of the resonance frequency of the resonator transmission characteristics of the existing magnetic resonance method The power transmission characteristics are excellent, but the power transmission characteristics of the higher-order mode resonant frequency are not low, so it is impossible to transmit the higher-order mode signal, thereby improving the problem of deterioration of basic efficiency. Resonance method has the feature to improve the efficiency of wireless power transmission.
According to an aspect of the present invention, a transmitter for generating a signal in the form of a square wave in order to generate a signal having high efficiency matches a basic mode frequency signal and a higher-order mode frequency signal with a multi-band frequency signal with respect to the generated square wave signal. It provides a magnetic resonance wireless power transmission apparatus using a high-order mode resonance including a transmission matcher and a multi-resonant transmission resonator for wirelessly transmitting the matched basic mode frequency signal and the higher-order mode frequency signal to a multi-resonant reception resonator at the same time. do.
The transmission matcher of the present invention may convert the output impedance at the fundamental mode frequency and the higher-order mode frequency of the transmitter into a conjugate value of the input impedance at the fundamental mode frequency and the higher-order mode frequency of the transmission resonator.
The higher order mode frequency signal of the present invention may be a third mode frequency signal or a fifth mode frequency signal.
The transmission resonator of the present invention may have the same size and shape as that of the reception resonator.
The transmission resonator of the present invention may have a size and shape different from the size and shape of the reception resonator.
According to another aspect of the present invention, a multi-resonance reception resonator for receiving a fundamental mode frequency signal and a higher-order mode frequency signal wirelessly transmitted from a multi-resonance transmission resonator of a wireless power transmission apparatus, and an input from the reception resonator A reception matcher for converting the output impedance at the fundamental mode frequency and the higher-order mode frequency into a conjugate value of the input impedance at the fundamental mode frequency and the higher-order mode frequency of the receiver, and a multi-band frequency signal input from the reception matcher at the load. Provided is a wireless power receiving terminal using a higher-order mode resonance including the receiver to convert the power to the required power to deliver the load.
The reception resonator of the present invention may have the same size and shape as that of the transmission resonator.
The reception resonator of the present invention may have a size and shape different from the size and shape of the transmission resonator.
According to another aspect of the present invention, a process of matching a basic mode frequency signal and a higher-order mode frequency signal to a multi-band frequency signal with respect to a square wave signal, and simultaneously multiplexing the matched basic mode frequency signal and a higher-order mode frequency signal Transmitting the resonance to the reception resonator, and converting the output impedance at the fundamental mode frequency and the higher mode frequency received through the reception resonator into a conjugate value of the input impedance at the fundamental mode frequency and the higher mode frequency of the receiver. And converting the converted multi-band frequency signal into a power source required by a load and transmitting the same to a load.
The matching process of the present invention may convert the output impedance at the fundamental mode frequency and the higher order frequency into a conjugate value of the input impedance at the fundamental mode frequency and the higher order frequency of the transmission resonator.
According to the present invention, a method of overcoming the problem of lowering transmission efficiency by transmitting only a basic mode frequency signal, which is a problem of the conventional magnetic resonance method, is proposed. The efficiency of power transmission can be improved, and energy saving effect can be realized simultaneously.
1 is a block diagram showing the configuration of a typical magnetic resonance wireless power transmission device,
2 is a characteristic graph showing transfer characteristics between a conventional magnetic resonance transmitting resonator and a receiving resonator;
3 is a waveform diagram showing a waveform in a time domain and a frequency domain of a square wave which is an output waveform of a general high efficiency transmitter;
Figure 4 is a block diagram showing the configuration of a wireless power transmission apparatus and a receiving terminal of the magnetic resonance method according to the first embodiment of the present invention,
5 is a characteristic diagram showing signal transmission characteristics between a multi-resonance transmission resonator and a multi-resonance reception resonator according to
First, the advantages and features of the present invention, and a method for achieving them will be apparent with reference to the first embodiment described below in detail with the accompanying drawings. Here, the present invention is not limited to the first embodiment disclosed below, but can be implemented in various different forms, only the first embodiment is to make the disclosure of the present invention complete, the present invention belongs to In order to enable one of ordinary skill in the art to clearly understand the scope of the invention, the technical scope of the present invention should be defined by the claims.
In addition, in the following description of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may be changed according to intention or custom of a user, an operator, or the like. Therefore, the definition should be made based on the technical idea described throughout this specification.
Hereinafter, with reference to the accompanying drawings will be described in detail a
4 is a block diagram showing the configuration of a wireless power transmitter and a receiving terminal of the magnetic resonance method according to the first embodiment of the present invention, the wireless power transmission device 410 and the receiving terminal 420 when largely divided The wireless power transmitter 410 may include a transmitter 412, a transmission matcher 414, a transmission resonator 416, and the like, and the reception terminal 420 may include a reception resonator ( 422, receive matcher 424, receiver 426, and the like. Here, the receiving terminal 420 may be, for example, a mobile communication terminal, a personal mobile communication terminal, a smartphone, a wireless LAN terminal, a tablet PC, a slate PC, a desktop, a notebook PC, and the like.
Referring to FIG. 4, in the magnetic resonance-type wireless power transmitter and the receiving terminal according to the first embodiment of the present invention, 99% or more of the square wave signal power is a basic mode and a higher order mode (for example, third mode and fifth mode). Exists in
Therefore, the magnetic resonance wireless power using the higher order mode of the present invention is a method of transmitting a higher order mode up to the fifth mode including a basic mode frequency signal, depending on the needs of the user or the configuration of the transmission and reception resonator, the basic mode and the third mode It is also applicable to the method of transmitting only.
First, the transmitter 412 of the wireless power transmitter 410 side may provide a function such as generating a square wave signal to generate a signal of high efficiency, and the transmission matcher 414 may include In order to transmit the fundamental mode frequency signal (basic mode resonant frequency signal) and the higher-order mode frequency signal (higher-order resonant frequency signal) to the transmission resonator 416 without loss, a function of matching a multi-band frequency signal is performed. Can provide.
That is, the transmission matcher 414 of the present invention sets the fundamental impedance of the transmitter 412 and the output impedance at the 3rd and 5th mode frequencies to the 3rd and 5th fundamental modes of the transmission resonator 416 of the multi-resonance. A function of converting the input impedance at the difference mode frequency into a conjugate value can be performed. In this conjugate matching scheme, it is possible to transfer the maximum power of the basic mode frequency signal and the third and fifth mode frequency signals.
Next, the multi-resonant transmission resonator 416 is a receiving terminal 420, that is, a multi-resonance receiving resonator 422 without loss of the frequency signal of the fundamental mode and the higher-order mode used in the conventional magnetic resonance method at the same time ) May provide a function such as wireless transmission (forwarding). At this time, the multi-resonance transmission resonator 416 and the multi-resonance reception resonator 422 may be the same size or shape or different.
In addition, the multi-resonance transmission resonator 416 and the multi-resonance reception resonator 422 of the reception terminal 420 applied to the wireless power transmission apparatus 410 according to the present invention, the primary mode frequency signal and the third and In order to wirelessly transmit and receive the fifth mode frequency signal, as described above, only the basic mode frequency signal and the third mode frequency signal may be configured as required by the user.
Meanwhile, the multi-resonance reception resonator 422 in the reception terminal 420 may provide a function such as transferring the received signal (multi-band frequency signal) to the reception matcher 424. 424 may provide a function such as transferring the input multi-band frequency signal to the receiver 426 without loss. Here, the receive matcher 424 sets the output impedance at the fundamental mode frequencies and the 3rd and 5th mode frequencies of the multi-resonance reception resonator 422 to the 3rd and 5th order of the base mode frequency of the receiver 426. Function such as converting the input impedance at the mode frequency into a conjugate value. In this case, the multi-resonance reception resonator 422 may have the same size and shape as that of the multi-resonance transmission resonator 416 in the wireless power transmitter 410.
In addition, the receiver 426 may provide a function of converting a multi-band frequency signal transmitted from the reception matcher 424 into a power required by the load 428 and then transferring the multiband frequency signal to the load 428. 428 may perform a desired operation by using the power (power source) transmitted (input) from the receiver 426.
5 is a characteristic diagram illustrating signal transmission characteristics between a multi-resonant transmission resonator and a multi-resonance reception resonator according to
Referring to FIG. 5, signal transmission characteristics between the multi-resonance transmission resonator 416 in the wireless power transmission apparatus 410 and the multi-resonance reception resonator 422 in the reception terminal 420 are basic. It has a characteristic that can transmit the mode frequency signal and the third and fifth mode frequency signal without loss, and the structure of the multi-resonant transmission resonator 416 and the reception resonator 422 having these characteristics are the same or different. It may be implemented in various forms having a size and shape.
The wireless power transmission and reception method of the magnetic resonance method using the high-order mode according to the first embodiment of the present invention is a method for improving the transmission efficiency, which is one of the problems of the conventional magnetic resonance method as described above, the power of the transmitter (transmitter) It is possible to provide a method capable of delivering the whole to a receiving terminal (receiver) without loss. According to the method proposed in the present invention, performing the magnetic resonance-type wireless power transmission and reception can have the effect of improving the power efficiency and energy saving at the same time, and the transmission efficiency is selected by selecting the order of the basic mode and the higher order mode used according to the user's needs. It has the advantage of being adjustable.
The above description is merely illustrative of the technical spirit of the present invention, and those skilled in the art to which the present invention pertains have various permutations, modifications, changes, and the like without departing from the essential characteristics of the present invention. You will easily see this possible. That is, the first embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical spirit of the present invention is not limited by the first embodiment.
Therefore, the protection scope of the present invention should be interpreted by the claims to be described later, and all technical ideas within the equivalent scope will be construed as being included in the scope of the present invention.
410: wireless power transmission device 412: transmitter
414 transmission matching unit 416 transmission resonator
420: receiving terminal 422: receiving resonator
424: reception matcher 426: receiver
428: load
Claims (12)
A transmission matcher for matching a fundamental mode frequency signal and an odd high order mode frequency signal to a multi-band frequency signal with respect to the generated square wave signal;
A multi-resonant transmission resonator for wirelessly transmitting the matched basic mode frequency signal and higher-order mode frequency signal to a multi-resonant reception resonator at the same time
Including,
The transmission matcher,
Magnetic resonance wireless power transmission apparatus using a high-order mode resonance for converting the output impedance at the fundamental mode frequency and the higher-order mode frequency of the transmitter to a conjugate value of the input impedance at the fundamental mode frequency and the higher-order mode frequency of the transmission resonator.
The high order mode frequency signal is,
Magnetic resonance wireless power transmission apparatus using a high-order mode resonance that is a third mode frequency signal or a fifth mode frequency signal.
The transmission resonator,
Magnetic resonance wireless power transmission apparatus using a high-order mode resonance having the same size and shape as that of the receiving resonator.
The transmission resonator,
Magnetic resonance wireless power transmission apparatus using a high-order mode resonance having a size and shape different from the size and shape of the receiving resonator.
The receiver for converting the multi-band frequency signal input from the reception matcher to the power required by the load to transfer to the load
Wireless power receiving terminal using a higher-order mode resonance comprising a.
The high order mode frequency signal is,
3rd mode frequency signal or 5th mode frequency signal
Wireless power receiving terminal using high-order mode resonance.
The reception resonator is
Wireless power receiving terminal using a higher-order mode resonance having the same size and shape as the size and shape of the transmission resonator.
The reception resonator is
Wireless power receiving terminal using a high-order mode resonance having a size and shape different from the size and shape of the transmission resonator.
Simultaneously delivering the matched basic mode frequency signal and higher order mode frequency signal to a multi-resonance reception resonator;
Converting the output impedance at the fundamental mode frequency and the higher mode frequency received through the reception resonator into a conjugate value of the input impedance at the fundamental mode frequency and the higher mode frequency of the receiver;
The process of converting the converted multi-band frequency signal to the power required by the load and delivering it to the load
Including,
The matching process is,
Magnetic resonance wireless power transmission and reception method using high-order mode resonance for converting the output impedance at the fundamental mode frequency and higher order mode frequency to a conjugate value of the input impedance at the fundamental mode frequency and higher order frequency of the transmission resonator.
The high order mode frequency signal is,
Magnetic resonance wireless power transmission / reception method using high-order mode resonance, which is a third mode frequency signal or a fifth mode frequency signal.
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| US13/943,380 US9543790B2 (en) | 2013-01-24 | 2013-07-16 | Apparatus for transmitting magnetic resonance wireless power using higher order mode resonance, receiving terminal, and method for transmitting and receiving wireless power using the same |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090284245A1 (en) * | 2008-05-13 | 2009-11-19 | Qualcomm Incorporated | Wireless power transfer for appliances and equipments |
| US20120112535A1 (en) * | 2008-09-27 | 2012-05-10 | Aristeidis Karalis | Wireless energy transfer for vehicles |
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| DE102007060811A1 (en) * | 2007-09-01 | 2009-03-05 | Maquet Gmbh & Co. Kg | Device and method for wireless energy and / or data transmission between a source device and at least one target device |
| KR101702861B1 (en) | 2009-12-24 | 2017-02-23 | 삼성전자주식회사 | Wireless Power Transmission Device and Wireless Power Transmission Method |
| KR101726195B1 (en) * | 2010-08-25 | 2017-04-13 | 삼성전자주식회사 | Method and apparatus of tracking of resonance impedance in resonance power transfer system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090284245A1 (en) * | 2008-05-13 | 2009-11-19 | Qualcomm Incorporated | Wireless power transfer for appliances and equipments |
| US20120112535A1 (en) * | 2008-09-27 | 2012-05-10 | Aristeidis Karalis | Wireless energy transfer for vehicles |
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