CN211880183U - Self-adaptive magnetic coupling resonant wireless power transmission system - Google Patents
Self-adaptive magnetic coupling resonant wireless power transmission system Download PDFInfo
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- CN211880183U CN211880183U CN202020201552.XU CN202020201552U CN211880183U CN 211880183 U CN211880183 U CN 211880183U CN 202020201552 U CN202020201552 U CN 202020201552U CN 211880183 U CN211880183 U CN 211880183U
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Abstract
The utility model discloses a self-adaptation magnetic coupling resonant mode wireless power transmission system, including high frequency conversion circuit, resonance transmission circuit and rectification output circuit, high frequency conversion circuit includes resistance R1, resistance R2, triode Q1 and coil L1, and resonance transmission circuit includes coil L2, coil L3, electric capacity C2 and electric capacity C3, and rectification output circuit includes rectifier bridge D1, electric capacity C3 and coil L4, resistance R1's one end connecting resistance R3 and power VCC. The utility model discloses self-adaptation magnetic coupling resonant mode wireless power transmission system adopts the magnetic coupling resonance technique, wireless power transmission in the adaptable middle and small distance to applicable a plurality of equipment use simultaneously, its circuit is simple relatively moreover, preparation low cost, and production is convenient.
Description
Technical Field
The utility model relates to a transmission system specifically is a resonant mode wireless power transmission system of self-adaptation magnetic coupling.
Background
The current changes in one coil, which produces induced electromotive forces in adjacent coils, are electrically independent of each other, and the interaction between them is linked by a magnetic field, electronically known as magnetic coupling.
Magnetic coupling is commonly used in various wireless transmission systems and circuits to achieve remote wireless transmission of signals.
The prior art carries out wireless power transmission through magnetic induction, and it is only applicable to the single equipment of closely, and mostly is miniwatt equipment, and the component circuit is also comparatively complicated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a self-adaptation magnetic coupling resonant mode wireless power transmission system to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a self-adaptive magnetic coupling resonant wireless electric energy transmission system comprises a high-frequency conversion circuit, a resonant transmission circuit and a rectification output circuit, wherein the high-frequency conversion circuit comprises a resistor R, a triode Q and a coil L, the resonant transmission circuit comprises a coil L, a capacitor C and a capacitor C, the rectification output circuit comprises a rectifier bridge D, a capacitor C and a coil L, one end of the resistor R is connected with the resistor R and a power supply VCC, the other end of the resistor R is connected with the resistor R and the base electrode of the triode Q, the collector electrode of the triode Q is connected with the resistor R, the capacitor C and the capacitor C, the emitter electrode of the triode Q is connected with the resistor R, the capacitor C and the capacitor C, the other end of the capacitor C is connected with the coil L, the other end of the resistor R is connected with the other end of the resistor R, the other end of the capacitor C, the other end of the, the coil L3 is connected in parallel with the capacitor C3, the coil L4 and the capacitor C4 are connected in parallel with two input ends of the rectifier bridge D1, and the capacitor C8 and the load RL are connected with two output ends of the rectifier bridge D1.
As a further technical solution of the present invention: the capacitor C1 is an adjustable capacitor.
As a further technical solution of the present invention: the capacitor C8 and the load RL are connected to two output terminals of the rectifier bridge D1.
As a further technical solution of the present invention: the transistor Q1 is an NPN transistor.
As a further technical solution of the present invention: the rectifier bridge D1 is a full-bridge rectifier circuit.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses self-adaptation magnetic coupling resonant mode wireless power transmission system adopts the magnetic coupling resonance technique, wireless power transmission in the adaptable middle and small distance to applicable a plurality of equipment use simultaneously, its circuit is simple relatively moreover, preparation low cost, and production is convenient.
Drawings
Fig. 1 is an overall schematic view of the present invention.
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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, an adaptive magnetic coupling resonant wireless power transmission system includes a high frequency conversion circuit, a resonant transmission circuit and a rectification output circuit, wherein the high frequency conversion dc voltage source input terminal VCC and the ground terminal GND, the high frequency conversion realizes LC oscillation by the miller oscillation circuit, and the system can reach a proper resonant frequency by C1 tuning. L2, C2, L3 and C3 are resonance transmission parts which are respectively composed of inductance capacitors with the same size and can improve transmission efficiency and transmission distance, and a transmitting coil L2 and a receiving coil L3 are respectively and strongly coupled with L1 and L4, and are similar to a primary coil and a secondary coil of a transformer. The rectification output part converts the received alternating current signal into a direct current signal through full-bridge rectification, and the direct current signal is filtered by a large capacitor C8 and then connected to a load RL, or is converted into electric energy applicable to other standards again.
The specific circuit is shown in figure 1, the high-frequency conversion circuit comprises a resistor R, a triode Q and a coil L, the resonance transmission circuit comprises a coil L, a capacitor C and a capacitor C, the rectification output circuit comprises a rectifier bridge D, a capacitor C and a coil L, one end of the resistor R is connected with the resistor R and a power supply VCC, the other end of the resistor R is connected with the resistor R and a base electrode of the triode Q, a collector electrode of the triode Q is connected with the resistor R, the capacitor C and the capacitor C, an emitter electrode of the triode Q is connected with the resistor R, the capacitor C and the capacitor C, the other end of the capacitor C is connected with the capacitor C and the coil L, the other end of the resistor R is connected with the other end of the resistor R, the other end of the capacitor C, the other end of the coil L and GND, the coil L is connected with the, the capacitor C8 and the load RL are connected to two output terminals of the rectifier bridge D1.
When a direct current power supply signal is connected, the high-frequency conversion part converts direct current electric energy into sine wave alternating current electric energy, the resonant frequency of the sine wave alternating current electric energy is the resonant frequency of the effect of the equivalent capacitor C connected with the capacitor C5, the capacitor C6 and the capacitor C7 in series and then connected with the capacitor C1 in parallel and the inductor L1, and the equivalent capacitor C can be approximately regarded as the equivalent capacitor connected with the capacitor C7 and the capacitor C1 in parallel because the value of C7 is far smaller than that of C5 and C6. By adjusting the C1, the resonant frequency can be changed to some extent, thereby achieving the purpose of tuning. The resonant transmission part formed by the transmitting coil L2 and the matching capacitor C2 thereof, the receiving coil L3 and the matching capacitor C3 thereof and the oscillating circuit formed by the coil L1 and the equivalent capacitor C should have the same resonant frequency, so that the energy can be effectively transmitted as much as possible. And finally, the rectification output part converts the alternating current electric energy into direct current electric energy so that the direct current electric energy can be used on related equipment.
Example 2: on the basis of embodiment 1, the capacitor C1 of the present design is a tunable capacitor. Therefore, the proportion and the parameters of the electromagnetic coupling can be conveniently adjusted, and the method is suitable for different design environment requirements.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. An adaptive magnetic coupling resonance type wireless power transmission system comprises a high-frequency conversion circuit, a resonance transmission circuit and a rectification output circuit, and is characterized in that the high-frequency conversion circuit comprises a resistor R1, a resistor R2, a transistor Q1 and a coil L1, the resonance transmission circuit comprises a coil L1, a capacitor C1 and a capacitor C1, the rectification output circuit comprises a rectification bridge D1, a capacitor C1 and the coil L1, one end of the resistor R1 is connected with the resistor R1 and a power supply VCC, the other end of the resistor R1 is connected with the resistor R1 and the base of the transistor Q1, the collector of the transistor Q1 is connected with the resistor R1, the capacitor C1 and the capacitor C1, the emitter of the transistor Q1 is connected with the resistor R1, the capacitor C1 and the capacitor C1, the other end of the capacitor C1 is connected with the capacitor C1 and the coil GND, coil L2 is connected with electric capacity C2 in parallel, and coil L3 is connected with electric capacity C3 in parallel, and coil L4 and electric capacity C4 are all connected in parallel at the two input terminals of rectifier bridge D1.
2. The adaptive magnetic-coupling resonant wireless power transmission system according to claim 1, wherein the capacitor C1 is an adjustable capacitor.
3. The adaptive magnetic coupling resonant wireless power transmission system according to claim 1, wherein the capacitor C8 and the load RL are connected to two output terminals of the rectifier bridge D1.
4. The adaptive magnetic coupling resonant wireless power transmission system according to claim 1, wherein the transistor Q1 is an NPN transistor.
5. The adaptive magnetic coupling resonant wireless power transmission system according to claim 1, wherein the rectifier bridge D1 is a full bridge rectifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020201552.XU CN211880183U (en) | 2020-02-24 | 2020-02-24 | Self-adaptive magnetic coupling resonant wireless power transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020201552.XU CN211880183U (en) | 2020-02-24 | 2020-02-24 | Self-adaptive magnetic coupling resonant wireless power transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211880183U true CN211880183U (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020201552.XU Expired - Fee Related CN211880183U (en) | 2020-02-24 | 2020-02-24 | Self-adaptive magnetic coupling resonant wireless power transmission system |
Country Status (1)
| Country | Link |
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| CN (1) | CN211880183U (en) |
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2020
- 2020-02-24 CN CN202020201552.XU patent/CN211880183U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210811 Address after: 071000 Room 403, 4th floor, office building, 3S shuangchuang community, No. 888, Hengyuan West Road, Baoding City, Hebei Province Patentee after: BAODING HUAMANDA POWER EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 236500 No. 8, Lane 1, dongshunhe street, Dongcheng office, Jieshou City, Fuyang City, Anhui Province Patentee before: Cao Ling |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201106 |