CN106816966A - Wireless charging and NFC twin coils coexist circuit - Google Patents
Wireless charging and NFC twin coils coexist circuit Download PDFInfo
- Publication number
- CN106816966A CN106816966A CN201710162138.5A CN201710162138A CN106816966A CN 106816966 A CN106816966 A CN 106816966A CN 201710162138 A CN201710162138 A CN 201710162138A CN 106816966 A CN106816966 A CN 106816966A
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- coil
- wireless charging
- nfc
- circuit
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- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008713 feedback mechanism Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
Classifications
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- H02J7/025—
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- H02J5/005—
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to wireless charging technical field, specifically related to wireless charging and NFC twin coils coexists circuit, it includes first coil, the second coil, wireless charging module and NFC module, the first coil is nested in the second coil, the first coil is electrically connected with wireless charging module, and second coil is electrically connected with NFC module.The present invention is used in wireless charging transmitting terminal system, easy to operate, stable performance, and wireless charging is nested with NFC coils to be set, and is not interfere with each other, the efficient stable of common guarantee wireless charging process.
Description
Technical field
The present invention relates to wireless charging technical field, and in particular to wireless charging and NFC twin coils coexist circuit.
Background technology
With the continuous progress of wireless charging skill technology, wireless charger with wireless charging function and equipment is electrically charged
Also make rapid progress.Existing wireless charger is charged generally by the way of electromagnetic induction to being electrically charged equipment, at some
In with scene, due to occurring in wireless charging energy electromagnetic during other loads, the wireless charger generally also can persistently be given
Energy is given, so as to cause to heat and damage equipment, or even potential safety hazard is produced.Furthermore, in order to ensure the ageing of wireless charging,
The charging transmitting terminal of usual wireless charger is constantly in opening, which results in energy consumption under no load
Waste.
The content of the invention
Therefore, circuit coexists the invention provides a kind of wireless charging and NFC twin coils, wireless charging transmitting terminal is used in
It is easy to operate in system, stable performance, wireless charging is nested with NFC coils to be set, and is not interfere with each other, common guarantee wireless charging
The efficient stable of process.
To achieve the above object, circuit coexists the invention provides wireless charging and NFC twin coils, it includes First Line
Circle, the second coil, wireless charging module and NFC module, the first coil are nested in the second coil, the first coil with
Wireless charging module is electrically connected with, and second coil is electrically connected with NFC module.
Further, the first coil is arranged on flexible PCB, and the flexible PCB is provided with wireless charging
Module and NFC module, the first coil periphery are uniformly arranged with the second coil, two taps of the first coil and wireless charging
Electric module is electrically connected with, and two taps and the NFC module of second coil are electrically connected with.
Further, the first coil is Wireless charging coil, in parallel one between the tap of Wireless charging coil two
First electric capacity, the Wireless charging coil, first coil and wireless charging module constitute the first oscillating circuit, the first vibration electricity
Road receives the signal from the transmitting of wireless charging base.
Further, second coil is NFC coils, one second electric capacity in parallel between the tap of NFC coils two,
NFC coils, the second electric capacity and NFC module constitute the second oscillating circuit, and second oscillating circuit is received from the transmitting of NFC transmitting terminals
Signal.
Prior art is different from, above-mentioned technical proposal has the advantages that：
1st, technical scheme is by designing the twin coil mode of NFC coil nesting Wireless charging coil by two not
Same coil unites two into one as coaxial coil, and is distinguished Wireless charging coil and NFC coils by different wiring taps
It is connected on wireless charging circuit and NFC circuit.So as to realize the reception of the signal that different frequency is realized on same coil.When
During NFC transmitting terminals transmitting NFC signals, the first oscillating circuit receives NFC signals, NFC circuit work and charging circuit will not be responded；
And when transmitting terminal send be wireless charging signal when, wireless charging circuit work and NFC circuit will not be responded.So as to avoid
So as to avoid whole wireless charging system that the equipment of connection is set up due to None- identified, and the essence to being electrically charged equipment cannot be realized
Standard charges, while it also avoid wireless charging system, constantly place generates heat and damages or produce potential safety hazard in the course of the work.
2nd, it is identified using twin coil, intelligently can be responded respectively in wireless charging circuit and NFC circuit, wireless charging
The transmitting terminal of module is in opening without the moment, effectively saves power consumption.
3rd, the circuit in the present invention is by the way that NFC interfaces can constantly precisely feedback be electrically charged equipment in charging process
The state such as battery and temperature, so that more reliable and safer regulation transmitting terminal.
4th, by feedback mechanism, the transmitting terminal of wireless charging module can dynamically adjust power, adapt to transmitting and
The a variety of wireless charging distances of receiving terminal, and reduce overload or temperature that the waste of power and receiving terminal are likely to occur
Hidden danger.
5th, the present invention is applied in wireless charging transmitting terminal system, easy to operate, stable performance, wireless charging and NFC phases
It is mutually independent, it does not interfere with each other, the efficient stable of common guarantee wireless charging process.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the circuit theory diagrams of the embodiment of the present invention 2.
Description of reference numerals：
1. NFC module, 2. wireless charging module, 3. first coil, 4. the second coil.
Specific embodiment
To describe technology contents, structural feature, the objects and the effects of technical scheme in detail, below in conjunction with specific reality
Apply example and coordinate accompanying drawing to be explained in detail.
Embodiment 1：
Refer to shown in Fig. 1, the wireless charging and NFC twin coils of the present embodiment coexist circuit, and it includes first coil 3, second
Coil 4, wireless charging module 2 and NFC module 1, the first coil 3 are nested in the second coil 4, the first coil 3 with
Wireless charging module 2 is electrically connected with, and second coil 4 is electrically connected with NFC module 1.The first coil 3 is arranged on flexibility
On circuit board, the flexible PCB is provided with wireless charging module 2 and NFC module 1, the periphery of the first coil 3 uniformly around
The second coil 4 is provided with, two taps and the wireless charging module 2 of the first coil 3 are electrically connected with, the two of second coil 4
Tap is electrically connected with NFC module 1.
In another embodiment, the first coil 3 is around being located on the tubular bobbin that an insulating materials is made,
Wireless charging module 2 and NFC module 1 are provided with the tubular bobbin.
In the present embodiment, its first coil and the second coil are directly to customize in the flexible circuit with polyester film as base material
On plate.By the electric capacity inside the resonant frequency for wishing to reach and chip pin end, coil inductance is calculated, further according to structure chi
Very little and coil inductance formula calculates the number of turns and line footpath of whole coil.Due to first coil and the resonant frequency of the second coil design
Point is different, it is ensured that two coils work independently without interfering with each other.
Embodiment 2：
In order to principle of the invention is expanded on further, with reference to shown in Fig. 2, in the present embodiment 2, the first coil 3 is wireless charging
Electric coil 3, one first electric capacity C1 of parallel connection between 3 liang of taps of the Wireless charging coil, wireless charging module 2, the first electric capacity C1 and
Wireless charging coil 3 constitutes the first oscillating circuit, and first oscillating circuit receives the signal from the transmitting of wireless charging base.
In the present embodiment, second coil 4 is NFC coils 4, one second electric capacity in parallel between 4 liang of taps of the NFC coils
C2, NFC coil 4, the second electric capacity C2 and NFC module 1 constitute the second oscillating circuit, and second oscillating circuit is received from NFC hairs
Penetrate the signal of end transmitting.
The operation principle of the present embodiment 2：
As a result of the coil coil of Wireless charging coil setting nested with NFC coils, coil coil in the present embodiment 2
1, the 2 pin connection NFC circuit of tap, and an oscillating circuit is constituted with electric capacity C4, what reception was sended over from NFC transmitting terminals
Signal；3, the 4 pin connection wireless charging circuit of coil tap, and another oscillating circuit is constituted with C3, receive and come from wireless charging
The signal that electric base is emitted.Because wireless charging is different with the working frequency of NFC, when transmitting terminal transmission is NFC signals
When, NFC circuit is worked and wireless charging circuit will not be responded；And when transmitting terminal send be wireless charging signal when, wireless charging
Circuit is worked and NFC circuit will not be responded, and two coils are coaxially integrated and ensure wireless charging and NFC monitoring works in a coil
Without interacting.
Prior art is different from, the present embodiment has the advantages that：
1st, technical scheme is by designing the twin coil mode of NFC coil nesting Wireless charging coil by two not
Same coil unites two into one as coaxial coil, and is distinguished Wireless charging coil and NFC coils by different wiring taps
It is connected on wireless charging circuit and NFC circuit.So as to realize the reception of the signal that different frequency is realized on same coil.When
During NFC transmitting terminals transmitting NFC signals, the first oscillating circuit receives NFC signals, NFC circuit work and charging circuit will not be responded；
And when transmitting terminal send be wireless charging signal when, wireless charging circuit work and NFC circuit will not be responded.So as to avoid
So as to avoid whole wireless charging system that the equipment of connection is set up due to None- identified, and the essence to being electrically charged equipment cannot be realized
Standard charges, while it also avoid wireless charging system, constantly place generates heat and damages or produce potential safety hazard in the course of the work.
2nd, it is identified using twin coil, intelligently can be responded respectively in wireless charging circuit and NFC circuit, wireless charging
The transmitting terminal of module is in opening without the moment, effectively saves power consumption.
3rd, the circuit in the present invention is by the way that NFC interfaces can constantly precisely feedback be electrically charged equipment in charging process
The state such as battery and temperature, so that more reliable and safer regulation transmitting terminal.
4th, by feedback mechanism, the transmitting terminal of wireless charging module can dynamically adjust power, adapt to transmitting and
The a variety of wireless charging distances of receiving terminal, and reduce overload or temperature that the waste of power and receiving terminal are likely to occur
Hidden danger.
5th, the present invention is applied in wireless charging transmitting terminal system, easy to operate, stable performance, wireless charging and NFC phases
It is mutually independent, it does not interfere with each other, the efficient stable of common guarantee wireless charging process.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to
Nonexcludability is included, so that process, method, article or terminal device including a series of key elements not only include those
Key element, but also other key elements including being not expressly set out, or also include being this process, method, article or end
The intrinsic key element of end equipment.In the absence of more restrictions, limited by sentence " including ... " or " including ... "
Key element, it is not excluded that also there is other key element in the process including the key element, method, article or terminal device.This
Outward, herein, " it is more than ", " being less than ", " exceeding " etc. are interpreted as not including this number；" more than ", " below ", " within " etc. understand
It is to include this number.
Although being described to the various embodiments described above, those skilled in the art once know basic wound
The property made concept, then can make other change and modification to these embodiments, so embodiments of the invention are the foregoing is only,
Not thereby scope of patent protection of the invention, the equivalent structure that every utilization description of the invention and accompanying drawing content are made are limited
Or equivalent flow conversion, or other related technical fields are directly or indirectly used in, similarly it is included in patent of the invention
Within protection domain.
Claims (4)
1. wireless charging and NFC twin coils coexist circuit, it is characterised in that including：First coil, the second coil, wireless charging
Module and NFC module, the first coil are nested in the second coil, and the first coil electrically connects with wireless charging module
Connect, second coil is electrically connected with NFC module.
2. wireless charging according to claim 1 and NFC twin coils coexist circuit, it is characterised in that the first coil
It is located on a flexible PCB, the flexible PCB is provided with wireless charging module and NFC module, the first coil periphery
Uniform to be arranged with the second coil, two taps and the wireless charging module of the first coil are electrically connected with, second coil
Two taps are electrically connected with NFC module.
3. wireless charging according to claim 2 and NFC twin coils coexist circuit, it is characterised in that the first coil
It is Wireless charging coil, one first electric capacity in parallel, the Wireless charging coil, First Line between the tap of Wireless charging coil two
Circle and wireless charging module constitute the first oscillating circuit, and first oscillating circuit receives the letter from the transmitting of wireless charging base
Number.
4. wireless charging according to claim 2 and NFC twin coils coexist circuit, it is characterised in that second coil
It is NFC coils, one second electric capacity in parallel between the tap of NFC coils two, NFC coils, the second electric capacity and NFC module constitute second
Oscillating circuit, second oscillating circuit receives the signal from the transmitting of NFC transmitting terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710162138.5A CN106816966A (en) | 2017-03-17 | 2017-03-17 | Wireless charging and NFC twin coils coexist circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710162138.5A CN106816966A (en) | 2017-03-17 | 2017-03-17 | Wireless charging and NFC twin coils coexist circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106816966A true CN106816966A (en) | 2017-06-09 |
Family
ID=59116199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710162138.5A Pending CN106816966A (en) | 2017-03-17 | 2017-03-17 | Wireless charging and NFC twin coils coexist circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106816966A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI677159B (en) * | 2017-11-20 | 2019-11-11 | 大陸商鵬鼎控股（深圳）股份有限公司 | Wireless power consortium device and method for manufacturing the same |
| US10819394B1 (en) | 2019-10-04 | 2020-10-27 | Nxp B.V. | Detection of NFC proximity IC cards (PICCs) during wireless charging |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202435145U (en) * | 2011-10-12 | 2012-09-12 | 台湾东电化股份有限公司 | Induction module shared by near field communication and wireless charging |
| CN203326090U (en) * | 2013-04-03 | 2013-12-04 | 中兴通讯股份有限公司 | Wireless multifunctional device and electronic equipment |
| CN103515698A (en) * | 2012-06-28 | 2014-01-15 | 比亚迪股份有限公司 | NFC (Near Field Communication) antenna and electronic equipment |
| CN104577358A (en) * | 2013-10-22 | 2015-04-29 | 恩智浦有限公司 | Antenna resonance frequency control driver |
-
2017
- 2017-03-17 CN CN201710162138.5A patent/CN106816966A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202435145U (en) * | 2011-10-12 | 2012-09-12 | 台湾东电化股份有限公司 | Induction module shared by near field communication and wireless charging |
| CN103515698A (en) * | 2012-06-28 | 2014-01-15 | 比亚迪股份有限公司 | NFC (Near Field Communication) antenna and electronic equipment |
| CN203326090U (en) * | 2013-04-03 | 2013-12-04 | 中兴通讯股份有限公司 | Wireless multifunctional device and electronic equipment |
| CN104577358A (en) * | 2013-10-22 | 2015-04-29 | 恩智浦有限公司 | Antenna resonance frequency control driver |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI677159B (en) * | 2017-11-20 | 2019-11-11 | 大陸商鵬鼎控股（深圳）股份有限公司 | Wireless power consortium device and method for manufacturing the same |
| US10819394B1 (en) | 2019-10-04 | 2020-10-27 | Nxp B.V. | Detection of NFC proximity IC cards (PICCs) during wireless charging |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170609 |
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| WD01 | Invention patent application deemed withdrawn after publication |