CN103023160A - Wireless power supply system used for printed circuit boards - Google Patents
Wireless power supply system used for printed circuit boards Download PDFInfo
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- CN103023160A CN103023160A CN2012105537146A CN201210553714A CN103023160A CN 103023160 A CN103023160 A CN 103023160A CN 2012105537146 A CN2012105537146 A CN 2012105537146A CN 201210553714 A CN201210553714 A CN 201210553714A CN 103023160 A CN103023160 A CN 103023160A
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Abstract
The invention discloses a wireless power supply system used for printed circuit boards, relates to the field of wireless electric energy transmission, and solves the problems of complicated routing and poor power supply quality which are caused by existing power supply modes adopting externally connected power lines, and poor anti-jamming capability of the printed circuit boards. A transmitter circuit of the wireless power supply system used for printed circuit boards is used for inverting direct current into alternating current with an f frequency and sending out an alternating magnetic field with the f frequency; each receiving circuit is used for sensing the alternating magnetic field generated by the transmitter circuit and generating alternating current with the f frequency; and the alternating current is performed with rectification and voltage stabilization and then supplies power for a branch circuit. The wireless power supply system used for printed circuit boards is suitable for wireless power supply of printed circuit boards.
Description
Technical field
The present invention relates to the wireless power transmission field.
Background technology
Some circuit are often arranged, the power line that the power supply of these circuit is drawn from power circuit on one printed circuit board.When the electricity consumption branch on the circuit board was more, it is comparatively complicated that cabling just becomes, and take more printed circuit board space.In addition, in actual use, such as relay, high-frequency switch circuit etc. all can increase power supply ripple, power quality exerted an influence, thereby affect other circuit working.In order to reduce the phase mutual interference between the different circuit, often carry out electrical isolation at some branch circuits.Traditional partition method mainly is to adopt insulating power supply, but the insulating power supply cost is higher, and because its inside has transformer, so volume is larger.
Summary of the invention
The present invention is that the cabling that the existing supply power mode that adopts circumscripted power line causes is complicated, power supply quality is poor in order to solve, and the problem of the poor anti jamming capability of printed circuit board (PCB), thereby is provided for the wireless power supply system of printed circuit board (PCB).
Be used for the wireless power supply system of printed circuit board (PCB), it is characterized in that: it comprises radiating circuit 1 and n receiving circuit 3; Described radiating circuit 1 and n receiving circuit 3 all are arranged on the printed circuit board (PCB) 10; N is positive integer;
It is the alternating current of f that described radiating circuit 1 is used for dc inverter is become frequency, and sends the alternating magnetic field that frequency is f;
The alternating magnetic field that each receiving circuit 3 all produces for induced emission circuit 1, and to produce frequency be the alternating current of f, described alternating current is a branch circuit power supply behind rectifying and voltage-stabilizing.
It also comprises M repeat circuit 2; Repeat circuit 2 is arranged on the printed circuit board (PCB) 10;
Repeat circuit 2 is used for the alternating magnetic field of induced emission circuit 1 generation and resonance occurs, and improves waveform and increases formed resonance current, and then strengthen the intensity of alternating magnetic field, guarantees that each receiving circuit 3 all can receive alternating magnetic field; M is positive integer.
Radiating circuit 1 comprises resonance radiating circuit 11, inverter circuit 12 and power supply 13; Described resonance radiating circuit 11 comprises a coil 111 and a capacitance group 112;
Power supply 13 is used for providing direct current to inverter circuit 12; Two outputs of described inverter circuit 12 are connected with the two ends of a coil 111 respectively; Capacitance group 112 and coil 111 are in parallel or be connected in series.
Each receiving circuit 3 includes resonance receiving circuit 31 and regulator rectifier circuit 32; Described resonance receiving circuit 31 comprises No. three coils 311 and No. three capacitance group 312;
The two ends of No. three coils 311 are connected with two inputs of regulator rectifier circuit 32 respectively; No. three capacitance group 312 is connected in parallel between two inputs of regulator rectifier circuit 32.
Repeat circuit 2 comprises No. two coils 21 and No. two capacitance group 22; The two ends of described No. two coils 21 are connected with the two ends of No. two capacitance group 22 respectively.
No. one coil 111, M No. two coil 21 and n No. three coils 311 all adopt the copper floor that covers of printed circuit board (PCB) to realize.
A coil (111), M No. two coil (21) and n No. three coils (311) are internal coil or external coil, described internal coil is to adopt the coil that the copper layer forms that covers of printed circuit board (PCB), and described external coil is the coil that adopts the wire coiling to form.
The scope of frequency f is 10KHz-10MHz.
The wireless power supply system that is used for printed circuit board (PCB) is separated structure or nesting type structure.
Described separated structure is: No. one coil 111, M No. two coil 21 and n No. three perspective planes of coil 311 on printed circuit board (PCB) are separated from one another.
Described nesting type structure is: individual No. two coils 21 of M and individual No. three perspective planes of coil 311 on printed circuit board (PCB) of n all are positioned at the perspective plane in the vertical direction of a coil 111.
Beneficial effect: the present invention adopts the resonance type wireless electric energy transmission technology, has realized the wireless power of each branch circuit on the circuit board, has simplified the printed circuit board (PCB) cabling, saves space on the plate.And wireless power has been realized good electrical isolation, has promoted the antijamming capability of printed circuit board (PCB).The invention power supply quality is good, and thoroughly the place to go insulating power supply on the printed circuit board (PCB), the decrease cost, reduced the volume of printed circuit board (PCB) electric supply installation.
Description of drawings
Fig. 1 is the structural representation that the present invention adopts the discrete layout; Fig. 2 is the structural representation that the present invention adopts the nested type layout.
Embodiment
Embodiment one, in conjunction with Fig. 1 this embodiment is described, is used for the wireless power supply system of printed circuit board (PCB), it comprises radiating circuit 1 and n receiving circuit 3; Described radiating circuit 1 and n receiving circuit 3 all are arranged on the printed circuit board (PCB) 10; N is positive integer;
It is the alternating current of f that described radiating circuit 1 is used for dc inverter is become frequency, and sends the alternating magnetic field that frequency is f;
The alternating magnetic field that each receiving circuit 3 all produces for induced emission circuit 1, and to produce frequency be the alternating current of f, described alternating current is a branch circuit power supply behind rectifying and voltage-stabilizing.
Coil of present embodiment and a capacitance group, No. three coils and No. three capacitance group also can be to be connected in series.
When between branch circuit not altogether, when needing electrical isolation, each branch circuit needs a receiving circuit; When between branch circuit, need not electrical isolation, but required supply power voltage is not simultaneously, can a receiving circuit be set each branch circuit, the voltage stabilizing circuit of several different voltage stabilizing values that yet can be connected in parallel after the receiving circuit rectification.
When between branch circuit, need not electrical isolation and supply power voltage is identical, but distant or cabling can arrange respectively a receiving circuit when inconvenient.
The power of inverter circuit designs by following requirement:
The equivalent impedance of resonance receiving circuit and repeat circuit to radiating circuit, and is added the impedance of resonance radiating circuit, gained and as equivalent load impedance;
Be supply voltage at input voltage, load is under the condition of equivalent load impedance, and the power output of inverter circuit should be greater than each branch circuit power demand under the rated condition and loss power sum.
Can change by the direct voltage of adjusting power supply output the power output of receiving circuit.
Operation principle: during circuit working, inverter circuit is converted to the alternating current that frequency is f with the direct current of power supply output, for the resonance radiating circuit provides energy.The resonance radiating circuit sends the alternating magnetic field that frequency is f to the external world.The alternating magnetic field generation resonance that repeat circuit and resonance radiating circuit produce improves waveform and increases formed resonance current, makes distant receiving circuit also can receive alternating magnetic field.The resonance receiving circuit receives alternating magnetic field, and producing same frequency in coil is the alternating current of f, and this alternating current is powered to branch circuit behind rectifying and voltage-stabilizing.
Compared with prior art, the present invention has following beneficial effect:
1, the power line that each circuit supply is drawn from power supply on traditional printed circuit board (PCB), the present invention adopts the resonance type wireless electric energy transmission technology, has realized the wireless power of each branch circuit on the circuit board, has simplified the printed circuit board (PCB) cabling, saves space on the plate.
2, wireless power has been realized good electrical isolation, has promoted the antijamming capability of printed circuit board (PCB).
3, replaced the insulating power supply on the printed circuit board (PCB), reduced cost, reduce volume.
The difference of the described wireless power supply system for printed circuit board (PCB) of embodiment two, this embodiment and embodiment one is, it also comprises M repeat circuit 2; Repeat circuit 2 is arranged on the printed circuit board (PCB) 10;
Repeat circuit 2 is used for the alternating magnetic field of induced emission circuit 1 generation and resonance occurs, and improves waveform and increases formed resonance current, and then strengthen the intensity of alternating magnetic field, guarantees that each receiving circuit 3 all can receive alternating magnetic field; M is positive integer.
The difference of the described wireless power supply system for printed circuit board (PCB) of embodiment three, this embodiment and embodiment two is, radiating circuit 1 comprises resonance radiating circuit 11, inverter circuit 12 and power supply 13; Described resonance radiating circuit 11 comprises a coil 111 and a capacitance group 112;
Power supply 13 is used for providing direct current to inverter circuit 12; Two outputs of described inverter circuit 12 are connected with the two ends of a coil 111 respectively; Capacitance group 112 and coil 111 are in parallel or be connected in series.
The difference of the described wireless power supply system for printed circuit board (PCB) of embodiment four, this embodiment and embodiment three is, each receiving circuit 3 includes resonance receiving circuit 31 and regulator rectifier circuit 32; Described resonance receiving circuit 31 comprises No. three coils 311 and No. three capacitance group 312;
The two ends of No. three coils 311 are connected with two inputs of regulator rectifier circuit 32 respectively; No. three capacitance group 312 is connected in parallel between two inputs of regulator rectifier circuit 32.
The difference of the described wireless power supply system for printed circuit board (PCB) of embodiment five, this embodiment and embodiment four is, repeat circuit 2 comprises No. two coils 21 and No. two capacitance group 22; The two ends of described No. two coils 21 are connected with the two ends of No. two capacitance group 22 respectively.
The difference of the described wireless power supply system for printed circuit board (PCB) of embodiment six, this embodiment and embodiment five is, No. one coil 111, M No. two coil 21 and n No. three coils 311 are internal coil or external coil, described internal coil is to adopt the coil that the copper layer forms that covers of printed circuit board (PCB), and described external coil is the coil that adopts the wire coiling to form.
The difference of the described wireless power supply system for printed circuit board (PCB) of embodiment seven, this embodiment and embodiment six is, the scope of frequency f is 10KHz-10MHz.
The difference of the described wireless power supply system for printed circuit board (PCB) of embodiment eight, this embodiment and embodiment seven is, the wireless power supply system that is used for printed circuit board (PCB) is separated structure or nesting type structure.
The difference of the described wireless power supply system for printed circuit board (PCB) of embodiment nine, this embodiment and embodiment eight is, described separated structure refers to: No. one coil 111, M No. two coil 21 and n No. three perspective planes of coil 311 on printed circuit board (PCB) are separated from one another.
At the through-put power maximum point, the repeat circuit of resonance receiving circuit and vicinity or the coupling coefficient of resonance radiating circuit adopted the discrete layout structure less than 0.25 o'clock.
The difference of the described wireless power supply system for printed circuit board (PCB) of embodiment ten, this embodiment and embodiment eight is, described nesting type structure refers to: M No. two coil 21 and n No. three perspective planes of coil 311 on printed circuit board (PCB) all are positioned at the perspective plane in the vertical direction of a coil 111.
At the through-put power maximum point, the coupling coefficient of resonance radiating circuit and resonance receiving circuit adopted the nested type layout structure greater than 0.25 o'clock.
Claims (10)
1. be used for the wireless power supply system of printed circuit board (PCB), it is characterized in that: it comprises radiating circuit (1) and n receiving circuit (3); Described radiating circuit (1) and n receiving circuit (3) all are arranged on the printed circuit board (PCB) (10); N is positive integer;
It is the alternating current of f that described radiating circuit (1) is used for dc inverter is become frequency, and sends the alternating magnetic field that frequency is f;
The alternating magnetic field that each receiving circuit (3) all produces for induced emission circuit (1), and to produce frequency be the alternating current of f, described alternating current is a branch circuit power supply behind rectifying and voltage-stabilizing.
2. the wireless power supply system for printed circuit board (PCB) according to claim 1 is characterized in that it also comprises M repeat circuit (2); Repeat circuit (2) is arranged on the printed circuit board (PCB) (10);
Repeat circuit (2) is used for the alternating magnetic field of induced emission circuit (1) generation and resonance occurs, and improves waveform and increases formed resonance current, and then strengthen the intensity of alternating magnetic field, guarantees that each receiving circuit (3) all can receive alternating magnetic field; M is positive integer.
3. the wireless power supply system for printed circuit board (PCB) according to claim 1 is characterized in that radiating circuit (1) comprises resonance radiating circuit (11), inverter circuit (12) and power supply (13); Described resonance radiating circuit (11) comprises a coil (111) and a capacitance group (112);
Power supply (13) is used for providing direct current to inverter circuit (12); Two outputs of described inverter circuit (12) are connected with the two ends of a coil (111) respectively; A capacitance group (112) is in parallel with a coil (111) or be connected in series.
4. the wireless power supply system for printed circuit board (PCB) according to claim 3 is characterized in that each receiving circuit (3) includes resonance receiving circuit (31) and regulator rectifier circuit (32); Described resonance receiving circuit (31) comprises No. three coils (311) and No. three capacitance group (312);
The two ends of No. three coils (311) are connected with two inputs of regulator rectifier circuit (32) respectively; No. three capacitance group (312) are connected in parallel between two inputs of regulator rectifier circuit (32).
5. the wireless power supply system for printed circuit board (PCB) according to claim 4 is characterized in that repeat circuit (2) comprises No. two coils (21) and No. two capacitance group (22); The two ends of described No. two coils (21) are connected with the two ends of No. two capacitance group (22) respectively.
6. the wireless power supply system for printed circuit board (PCB) according to claim 5, it is characterized in that a coil (111), M No. two coil (21) and n No. three coils (311) are internal coil or external coil, described internal coil is to adopt the coil that the copper layer forms that covers of printed circuit board (PCB), and described external coil is the coil that adopts the wire coiling to form.
7. the wireless power supply system for printed circuit board (PCB) according to claim 6, the scope that it is characterized in that frequency f is 10KHz-10MHz.
8. the wireless power supply system for printed circuit board (PCB) according to claim 7 is characterized in that the wireless power supply system for printed circuit board (PCB) is separated structure or nesting type structure.
9. the wireless power supply system for printed circuit board (PCB) according to claim 8, it is characterized in that, described separated structure refers to: a coil (111), M No. two coil (21) and n the perspective plane of No. three coils (311) on printed circuit board (PCB) are separated from one another.
10. the wireless power supply system for printed circuit board (PCB) according to claim 8, it is characterized in that, described nesting type structure refers to: individual No. two coils (21) of M and the individual perspective plane of No. three coils (311) on printed circuit board (PCB) of n all are positioned at the perspective plane in the vertical direction of a coil (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105537146A CN103023160A (en) | 2012-12-19 | 2012-12-19 | Wireless power supply system used for printed circuit boards |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105537146A CN103023160A (en) | 2012-12-19 | 2012-12-19 | Wireless power supply system used for printed circuit boards |
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| CN103023160A true CN103023160A (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105537146A Pending CN103023160A (en) | 2012-12-19 | 2012-12-19 | Wireless power supply system used for printed circuit boards |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501060A (en) * | 2013-10-21 | 2014-01-08 | 哈尔滨工业大学 | Relay desktop multi-load wireless power-supplying system |
| CN103730932A (en) * | 2013-12-20 | 2014-04-16 | 深圳市文鼎创数据科技有限公司 | Wireless charging system |
| CN106787234A (en) * | 2016-12-23 | 2017-05-31 | 深圳英伦科技股份有限公司 | Wireless charging capacitance type minitype power supply and its application |
| CN109661099A (en) * | 2018-12-21 | 2019-04-19 | 重庆蓝岸通讯技术有限公司 | A kind of PCB construction that excessive electric power can be recycled |
| CN110316457A (en) * | 2019-04-11 | 2019-10-11 | 武汉大学 | Printed electronic packing device and design method based on magnetic resonance wireless power technology |
| CN110329631A (en) * | 2019-04-11 | 2019-10-15 | 武汉大学 | The luminous packing device of printing based on magnetic resonance wireless power technology and design method |
| CN110329660A (en) * | 2019-04-11 | 2019-10-15 | 武汉大学 | Printed sensor packing device and design method based on magnetic resonance wireless power technology |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501060A (en) * | 2013-10-21 | 2014-01-08 | 哈尔滨工业大学 | Relay desktop multi-load wireless power-supplying system |
| CN103730932A (en) * | 2013-12-20 | 2014-04-16 | 深圳市文鼎创数据科技有限公司 | Wireless charging system |
| CN106787234A (en) * | 2016-12-23 | 2017-05-31 | 深圳英伦科技股份有限公司 | Wireless charging capacitance type minitype power supply and its application |
| CN106787234B (en) * | 2016-12-23 | 2023-09-22 | 深圳英伦科技股份有限公司 | Wireless charging capacitance type micro power supply and application thereof |
| CN109661099A (en) * | 2018-12-21 | 2019-04-19 | 重庆蓝岸通讯技术有限公司 | A kind of PCB construction that excessive electric power can be recycled |
| CN109661099B (en) * | 2018-12-21 | 2021-04-16 | 重庆蓝岸通讯技术有限公司 | PCB structure of recoverable excessive electric power |
| CN110316457A (en) * | 2019-04-11 | 2019-10-11 | 武汉大学 | Printed electronic packing device and design method based on magnetic resonance wireless power technology |
| CN110329631A (en) * | 2019-04-11 | 2019-10-15 | 武汉大学 | The luminous packing device of printing based on magnetic resonance wireless power technology and design method |
| CN110329660A (en) * | 2019-04-11 | 2019-10-15 | 武汉大学 | Printed sensor packing device and design method based on magnetic resonance wireless power technology |
| CN110329660B (en) * | 2019-04-11 | 2021-01-26 | 武汉大学 | Printed sensor packaging device based on magnetic resonance wireless power supply technology and design method |
| CN110316457B (en) * | 2019-04-11 | 2021-01-26 | 武汉大学 | Printing electronic packaging device based on magnetic resonance wireless power supply technology and design method |
| CN110329631B (en) * | 2019-04-11 | 2021-01-26 | 武汉大学 | Printing light-emitting packaging device based on magnetic resonance wireless power supply technology and design method |
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Application publication date: 20130403 |