CN107749772B - Wireless energy information synchronous transmission system - Google Patents
Wireless energy information synchronous transmission system Download PDFInfo
- Publication number
- CN107749772B CN107749772B CN201711261224.8A CN201711261224A CN107749772B CN 107749772 B CN107749772 B CN 107749772B CN 201711261224 A CN201711261224 A CN 201711261224A CN 107749772 B CN107749772 B CN 107749772B
- Authority
- CN
- China
- Prior art keywords
- signal
- coupling transformer
- resonance
- resonance unit
- coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 37
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 14
- 230000008878 coupling Effects 0.000 claims abstract description 75
- 238000010168 coupling process Methods 0.000 claims abstract description 75
- 238000005859 coupling reaction Methods 0.000 claims abstract description 75
- 238000004891 communication Methods 0.000 claims abstract description 35
- 230000003321 amplification Effects 0.000 claims description 7
- 238000004146 energy storage Methods 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention provides a wireless energy information synchronous transmission system which comprises a signal modulator (1), a first coupling transformer (2), an alternating current source (3), a first multi-resonance unit (4), a main coupling coil (5), a second multi-resonance unit (6), a second coupling transformer (7), a load (8) and a signal demodulator (9). The invention constructs a multi-resonance unit which at least comprises two resonance frequencies, and introduces a signal frequency on the basis of ensuring good energy transmission performance, and the two can achieve mutual noninterference in synchronous transmission. The invention can obtain the best transmission characteristic for both energy and information. Meanwhile, the invention also provides a signal coupling transformer capable of adjusting the coupling coefficient, and the purposes of adjusting the signal receiving voltage and the signal-to-noise ratio of the communication system can be achieved by adjusting the rotation angle of the coupling transformer.
Description
Technical Field
The invention belongs to the technical field of wireless energy-carrying communication, and particularly relates to a wireless energy information synchronous transmission system.
Background
With the technological accumulation over the last decade, research efforts in the laboratory have gradually gone into industrialization. Many high-tech products such as new energy vehicles, human body implanted devices, intelligent devices, etc. have adopted wireless energy transmission technology. Many of these products need supporting communication facilities, take the wireless energy transmission technology of human implanted equipment as an example, and the design of this technology is in order to make corresponding medical equipment can be through the mode of external power supply in patient's internal continuous work to avoid secondary operation to bring more misery to the patient. Since the device works in the human body, the volume is an important technical index, and in addition, since the running state of the device needs to be monitored and related physiological indexes need to be mastered, the energy transmission system needs to bear a certain communication function to meet the requirement of data transmission. In the conventional design scheme, additional communication modules such as WIFI are added, and the system needs additional space for arranging the antennas, so that a technology for communicating by using an energy transmission loop needs to be developed. In order to meet the requirement, a magnetic coupling resonant wireless energy-carrying communication technology is developed, the technology comprises two parts, namely a magnetic coupling resonant wireless communication technology and a magnetic coupling resonant wireless energy transmission technology, the system structures of the two parts are similar, an alternating magnetic field is used as a transmission means, energy and information are received and demodulation work is completed through the electromagnetic induction principle, most of the existing technical schemes are designed by a system structure with a single resonant frequency, and the transmission efficiency of the energy and the information is difficult to be considered during design.
Disclosure of Invention
The invention provides a wireless energy information synchronous transmission system for solving the technical problems in the prior art, the wireless energy information synchronous transmission system designed by the invention adopts a multi-resonance topology, the communication frequency reasonably utilizes other resonance frequencies of the system, and compared with the prior method, the wireless energy information synchronous transmission system can transmit information more remotely, more quickly and more efficiently without influencing energy transmission.
The purpose of the invention is realized by the following technical scheme: a wireless energy information synchronous transmission system comprises a signal modulator 1, a first coupling transformer 2, an alternating current source 3, a first multi-resonance unit 4, a main coupling coil 5, a second multi-resonance unit 6, a second coupling transformer 7, a load 8 and a signal demodulator 9; the signal modulator 1 is connected with the primary side of the first coupling transformer 2; one end of the secondary side of the first coupling transformer 2 is connected with an alternating current source 3, and the other end of the secondary side of the first coupling transformer is connected with a first multi-resonance unit 4; the other end of the alternating current source 3 is connected with a first multi-resonance unit 4; the first multi-resonance unit 4 is connected with a second multi-resonance unit 6 through a main coupling coil 5; the second multi-resonant unit 6 is connected with one end of the primary side of the second coupling transformer 7, and the load 8 is connected with the other end of the primary side of the second coupling transformer 7; the load 8 is connected with the second multi-resonant unit 6; the secondary side of the second coupling transformer 7 is connected with a signal demodulator 9; the first multi-resonant cell 4 is identical in structure to the second multi-resonant cell 6.
Further, the main coupling coil 5 comprises a transmitting coil and a receiving coil, the first multi-resonance unit 4 is connected with the transmitting coil, the second multi-resonance unit 6 is connected with the receiving coil, and energy and information are transmitted through mutual inductance between the transmitting coil and the receiving coil.
Further, the first multi-resonant unit 4 and the second multi-resonant unit 6 are both of an inverted L-shaped structure formed by 2 energy storage elements.
Further, the first multi-resonant unit 4 and the second multi-resonant unit 6 are both in a T-shaped, pi-shaped, triangular or star-shaped structure formed by 3 energy storage elements.
Further, the signal modulator 1 includes a signal modulation module, a power amplification module, a first communication rate adjusting resistor, and a first resonance compensation network; the signal modulation module, the power amplification module, the first communication rate adjusting resistor and the first resonance compensation network are sequentially connected, and the first resonance compensation network is connected with the first coupling transformer 2.
Further, the signal demodulator 9 includes a second resonance compensation network, a second communication rate adjustment resistor, a signal processing module and a signal demodulation module; the second resonance compensation network, the second communication rate adjusting resistor, the signal processing module and the signal demodulation module are sequentially connected, and the second resonance compensation network is connected with the second coupling transformer 7.
Further, the first coupling transformer 2 and the second coupling transformer 7 are wound by square or circular solenoid coils, and the coupling coefficient is changed by rotating around the Z axis.
The advantages of the invention are mainly embodied in the following aspects:
1. the multi-resonance structure is adopted, the multi-resonance structure provided by the invention has a plurality of resonance frequencies, one resonance frequency can be adopted to stably and efficiently transmit energy, the other resonance frequency can be adopted to transmit information at high speed and high efficiency with higher signal-to-noise ratio, and the energy and information transmission can be carried out simultaneously without mutual influence, so that the aim of synchronously transmitting the energy and the information can be efficiently realized by adopting the multi-resonance system.
2. The invention provides a signal coupling and extraction mode by utilizing self inductance elements of a multi-resonance structure, which can effectively reduce the number of additionally-increased devices. Compared with a general coupling coil, the adjustable coupling transformer provided by the mode has the advantage that the coupling coefficient can be adjusted through rotation, so that the output characteristic of a communication system can be changed.
Drawings
Fig. 1 is a structural view of a wireless energy information synchronous transmission system;
FIG. 2 is a structural view of a multi-resonant unit of an inverted L-shaped configuration;
FIG. 3 is a diagram of a multi-resonant cell structure of a T-shaped structure;
FIG. 4 is a diagram of a multi-resonant cell structure of a pi-type structure;
FIG. 5 is a diagram of a multi-resonant cell structure in a delta configuration;
FIG. 6 is a diagram of a multi-resonant unit structure of a star configuration;
FIG. 7 is a schematic diagram of a coupling transformer (including a magnetic core);
FIG. 8 is a schematic diagram of a coupling transformer (without a magnetic core);
FIG. 9 is a block diagram of a signal modulator;
fig. 10 is a structural diagram of a signal demodulator.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With reference to fig. 1, the present invention provides a wireless energy information synchronous transmission system, which includes a signal modulator 1, a first coupling transformer 2, an ac source 3, a first multi-resonant unit 4, a main coupling coil 5, a second multi-resonant unit 6, a second coupling transformer 7, a load 8, and a signal demodulator 9; the signal modulator 1 is connected with the primary side of the first coupling transformer 2; one end of the secondary side of the first coupling transformer 2 is connected with an alternating current source 3, and the other end of the secondary side of the first coupling transformer is connected with a first multi-resonance unit 4; the other end of the alternating current source 3 is connected with a first multi-resonance unit 4; the first multi-resonance unit 4 is connected with a second multi-resonance unit 6 through a main coupling coil 5; the second multi-resonant unit 6 is connected with one end of the primary side of the second coupling transformer 7, and the load 8 is connected with the other end of the primary side of the second coupling transformer 7; the load 8 is connected with the second multi-resonant unit 6; the secondary side of the second coupling transformer 7 is connected with a signal demodulator 9; the first multi-resonant cell 4 is identical in structure to the second multi-resonant cell 6. The wireless energy information synchronous transmission system is applied to a wireless energy transmission system needing near field communication, and can carry out long-distance high-speed and high-efficiency communication while keeping good electric energy transmission performance; the corresponding multi-resonant cells together with the coupling transformer act as a compensation network for the system, resulting in a system with multiple resonant frequencies.
The main coupling coil 5 comprises a transmitting coil and a receiving coil, the first multi-resonance unit 4 is connected with the transmitting coil, the second multi-resonance unit 6 is connected with the receiving coil, and energy and information are transmitted through mutual inductance between the transmitting coil and the receiving coil.
With reference to fig. 2 to 6, the first multi-resonant unit 4 and the second multi-resonant unit 6 are both of an inverted L-shaped structure formed by 2 energy storage elements, or both of them are both of a T-shaped, pi-shaped, triangular or star-shaped structure formed by 3 energy storage elements. The energy storage element is an inductor or a capacitor. The first multi-resonant unit 4 and the second multi-resonant unit 6 may also be configured in other forms. The multi-resonance system is constructed to have a plurality of resonance frequencies, one frequency is selected as an energy transmission frequency, the other frequency is selected as a signal transmission frequency, and energy and information are transmitted through mutual inductance between the main coupling coils.
Referring to fig. 7 and 8, fig. 7 shows a coupling transformer with a magnetic core, fig. 8 shows a coupling transformer without a magnetic core, and the first coupling transformer 2 and the second coupling transformer 7 are wound by square or circular solenoid coils and the coupling coefficient is changed by rotating around the Z-axis. The coupling transformer utilizes the inductance element in the multi-resonance unit, and compared with other information loading modes, the coupling transformer effectively reduces the elements required by the system and reduces the volume of equipment. The coupling transformer has the advantage of adjustable coupling coefficient, which can be changed between 0 and 1 by rotating around the Z axis, and the conditional mode is used for adjusting the signal-to-noise ratio of the signal and the amplitude of the received signal. When communication frequency within 1MHz is used, the leakage inductance of the transformer can be further reduced and the volume can be reduced by loading the magnetic core.
With reference to fig. 9, the signal modulator 1 includes a signal modulation module, a power amplification module, a first communication rate adjustment resistor, and a first resonance compensation network; the signal modulation module, the power amplification module, the first communication rate adjusting resistor and the first resonance compensation network are sequentially connected, and the first resonance compensation network is connected with the first coupling transformer 2. The signal modulator 1 generates a modulation signal by using signal modulation modes such as FSK, ASK, and the like, and a first-stage power amplification module is added at a rear stage to improve power output capability because the modulation signal cannot output larger power. Meanwhile, a communication rate adjusting resistor is added, the response time of a communication loop can be adjusted by adjusting the resistance value of the resistor, and the response time corresponds to the maximum communication rate of the system, so that the maximum communication rate of the system can be adjusted by introducing the communication rate adjusting resistor. A resonance compensation network designed aiming at signal frequency is arranged for compensating reactive power of a signal loop, the added resonance compensation network can maximize signal transmission power and has frequency selection characteristics to filter partial noise, and a more complex multi-resonance matching mode can be adopted for obtaining better transmission characteristics.
Referring to fig. 10, the signal demodulator 9 includes a second resonance compensation network, a second communication rate adjustment resistor, a signal processing module, and a signal demodulation module; the second resonance compensation network, the second communication rate adjusting resistor, the signal processing module and the signal demodulation module are sequentially connected, and the second resonance compensation network is connected with the second coupling transformer 7. The signal demodulator 9 employs a similar resonant tuning manner as the signal modulator 1 to compensate for the reactive power of the communication loop and has a filtering function to ensure a high signal-to-noise ratio. The second communication rate adjustment resistor functions in the same manner as the first communication rate adjustment resistor. Because the acquired signals are usually small in signal amplitude, a first-stage signal processing module is added, the module comprises a signal amplifying and filtering module for preprocessing the signals, and the processed signals finish the demodulation work of the signals in a frequency discrimination or envelope detection mode.
The invention constructs a multi-resonance unit which at least comprises two resonance frequencies, and introduces a signal frequency on the basis of ensuring good energy transmission performance, and the two frequencies can not interfere with each other during transmission. The system can meet reactive compensation of the system under two resonant frequencies, so that the transmission efficiency is higher, and compared with the original single resonant system, the system can obtain the optimal transmission characteristics of energy and information. The original system design method needs the power supply to simultaneously take energy output and signal modulation tasks into consideration, the signal coupling mode adopted by the invention reduces the requirements of the system on the performance of the power supply, and the two power supplies with different power levels respectively undertake the transmission tasks of energy and information, thereby reducing the requirements on the power supply design and saving the cost. The coupling transformer designed by the invention has the advantage of variable coupling coefficient, the signal-to-noise ratio and the signal receiving voltage of a system can be adjusted by finely adjusting the device in practical use, and compared with a fixed parameter transformer, the coupling transformer brings convenience to parameter adjustment of a communication system. Compared with the general energy and information transmission structure topology, the method and the device have the advantages that the whole efficiency and the fine adjustment of the later-stage system communication parameters are considered when the continuous and stable energy transmission is guaranteed and the communication requirements of the system are met.
The wireless energy information synchronous transmission system provided by the invention is described in detail, and the principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (4)
1. A wireless energy information synchronous transmission system is characterized in that: the device comprises a signal modulator (1), a first coupling transformer (2), an alternating current source (3), a first multi-resonance unit (4), a main coupling coil (5), a second multi-resonance unit (6), a second coupling transformer (7), a load (8) and a signal demodulator (9); the signal modulator (1) is connected with the primary side of the first coupling transformer (2); one end of the secondary side of the first coupling transformer (2) is connected with an alternating current source (3), and the other end of the secondary side of the first coupling transformer is connected with a first multi-resonance unit (4); the other end of the alternating current source (3) is connected with a first multi-resonance unit (4); the first multi-resonance unit (4) is connected with the second multi-resonance unit (6) through a main coupling coil (5); the second multi-resonance unit (6) is connected with one end of the primary side of the second coupling transformer (7), and the load (8) is connected with the other end of the primary side of the second coupling transformer (7); the load (8) is connected with the second multi-resonance unit (6); the secondary side of the second coupling transformer (7) is connected with a signal demodulator (9); the first multi-resonant unit (4) and the second multi-resonant unit (6) are identical in structure;
the signal modulator (1) comprises a signal modulation module, a power amplification module, a first communication rate adjusting resistor and a first resonance compensation network; the signal modulation module, the power amplification module, the first communication rate adjusting resistor and the first resonance compensation network are sequentially connected, and the first resonance compensation network is connected with the first coupling transformer (2);
the signal demodulator (9) comprises a second resonance compensation network, a second communication rate adjusting resistor, a signal processing module and a signal demodulation module; the second resonance compensation network, the second communication rate adjusting resistor, the signal processing module and the signal demodulation module are sequentially connected, and the second resonance compensation network is connected with a second coupling transformer (7);
the first coupling transformer (2) and the second coupling transformer (7) are wound by square or circular solenoid coils, and the coupling coefficient is changed by rotating around the Z axis.
2. The system of claim 1, wherein: the main coupling coil (5) comprises a transmitting coil and a receiving coil, the first multi-resonance unit (4) is connected with the transmitting coil, the second multi-resonance unit (6) is connected with the receiving coil, and energy and information are transmitted through mutual inductance between the transmitting coil and the receiving coil.
3. The system of claim 2, wherein: the first multi-resonance unit (4) and the second multi-resonance unit (6) are both of an inverted L-shaped structure formed by 2 energy storage elements.
4. The system of claim 2, wherein: the first multi-resonance unit (4) and the second multi-resonance unit (6) are of T-shaped, pi-shaped, triangular or star-shaped structures formed by 3 energy storage elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261224.8A CN107749772B (en) | 2017-12-04 | 2017-12-04 | Wireless energy information synchronous transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261224.8A CN107749772B (en) | 2017-12-04 | 2017-12-04 | Wireless energy information synchronous transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107749772A CN107749772A (en) | 2018-03-02 |
| CN107749772B true CN107749772B (en) | 2020-12-11 |
Family
ID=61250394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711261224.8A Active CN107749772B (en) | 2017-12-04 | 2017-12-04 | Wireless energy information synchronous transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107749772B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962571A (en) * | 2018-07-23 | 2018-12-07 | 哈尔滨工业大学 | Cross type plane thread tubular type magnetic coupling arrangement |
| CN109474555A (en) * | 2018-10-22 | 2019-03-15 | 哈尔滨工业大学 | Wireless energy and data synchronous transmission system and its Parameters design based on inductive coupling and FSK modulation |
| CN112422159B (en) * | 2020-11-06 | 2021-06-25 | 西安电子科技大学 | Electro-magnetic quadrature coupling device for energy-carrying communication and energy-carrying communication system |
| CN117691980A (en) * | 2023-11-24 | 2024-03-12 | 宁波群芯微电子股份有限公司 | Magnetic coupling isolation relay circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701227A (en) * | 2014-01-14 | 2014-04-02 | 哈尔滨工业大学 | Wireless energy and signal synchronous transmission system based on multi-resonant technique |
| CN104158305A (en) * | 2014-07-30 | 2014-11-19 | 华南理工大学 | Energy and information synchronous transmission system based on self-adaptive magnetic coupling resonance matching |
| CN105024738A (en) * | 2015-06-26 | 2015-11-04 | 重庆大学 | Shared-channel-based energy signal parallel transmission system |
| WO2015172049A1 (en) * | 2014-05-09 | 2015-11-12 | The Board Of Trustees Of The Leland Stanford Junior University | Short range wireless communication |
| CN105305655A (en) * | 2015-10-19 | 2016-02-03 | 中国科学院自动化研究所 | Fuse setting system based on double-channel coupling coil |
| CN107069990A (en) * | 2017-03-27 | 2017-08-18 | 华北电力大学（保定） | A kind of two-band magnet coupled resonant type wireless electric energy and signal synchronous transmission system |
-
2017
- 2017-12-04 CN CN201711261224.8A patent/CN107749772B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701227A (en) * | 2014-01-14 | 2014-04-02 | 哈尔滨工业大学 | Wireless energy and signal synchronous transmission system based on multi-resonant technique |
| WO2015172049A1 (en) * | 2014-05-09 | 2015-11-12 | The Board Of Trustees Of The Leland Stanford Junior University | Short range wireless communication |
| CN104158305A (en) * | 2014-07-30 | 2014-11-19 | 华南理工大学 | Energy and information synchronous transmission system based on self-adaptive magnetic coupling resonance matching |
| CN105024738A (en) * | 2015-06-26 | 2015-11-04 | 重庆大学 | Shared-channel-based energy signal parallel transmission system |
| CN105305655A (en) * | 2015-10-19 | 2016-02-03 | 中国科学院自动化研究所 | Fuse setting system based on double-channel coupling coil |
| CN107069990A (en) * | 2017-03-27 | 2017-08-18 | 华北电力大学（保定） | A kind of two-band magnet coupled resonant type wireless electric energy and signal synchronous transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107749772A (en) | 2018-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107749772B (en) | Wireless energy information synchronous transmission system | |
| US10027377B2 (en) | Wireless power supply apparatus | |
| JP5930328B2 (en) | System for wireless power transmission | |
| US9633780B2 (en) | Apparatus and method for controlling resonator of wireless power transmission system | |
| US9837826B2 (en) | Resonating apparatus with increased isolation for stable wireless power transmission | |
| CN205647044U (en) | Magnetic coupling resonant mode wireless charging device with self -adaptive control ability | |
| CN110277820A (en) | A kind of parameter self-regulation wireless charging system based on LCC compensation network | |
| CN103915907A (en) | Primary-secondary self-coupling magnetic resonance wireless power transmission device and operation method thereof | |
| CN204721105U (en) | Insert the asymmetric wireless power transmission systems of repeating coil | |
| CN104242483B (en) | Magnet coupled resonant type multi-load radio energy chain transmission network with load isolation characteristic | |
| CN110350670A (en) | A kind of Universal wireless charging transmitting end device and control method | |
| CN103178623A (en) | Magnetically coupled resonance type wireless power transmission controllable-inductance tuning unit | |
| CN107546866B (en) | Positive bridging coil EMR electromagnetic resonance energy transmission system design method | |
| CN107482790B (en) | Efficiently positive wireless power supply system design method in parallel | |
| CN105186706A (en) | Automatic sweep-frequency wireless resonant power transmission device and operation method | |
| CN107546867B (en) | Magnetic coupling high efficiency electric energy transmits bridging coil design method | |
| CN104135086A (en) | Resonant wireless energy transfer device | |
| CN107508388B (en) | Design method of magnetic coupling resonance high-efficiency electric energy transmission coil | |
| CN107394901B (en) | Inhibit the wireless power transmission coil design approaches of frequency splitting | |
| CN105932786A (en) | Different quantities of load access-based single relay multi-load wireless power transmission system work frequency stabilizing method | |
| US10277061B1 (en) | Wireless device | |
| CN104682575B (en) | A kind of resonance type wireless electric energy transmission system for adding both-end impedance transformer network | |
| CN207939267U (en) | Asymmetric coils structure magnetic coupling resonant radio energy Transmission system | |
| CN103337917A (en) | Adjustable inductor as well as wireless charging system applying adjustable inductor and control method of wireless charging system | |
| Wang et al. | Optimization of simultaneous wireless power and data transmission system with single coil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |