CN107027217A - A kind of LED circuit of wireless power - Google Patents
A kind of LED circuit of wireless power Download PDFInfo
- Publication number
- CN107027217A CN107027217A CN201710269871.7A CN201710269871A CN107027217A CN 107027217 A CN107027217 A CN 107027217A CN 201710269871 A CN201710269871 A CN 201710269871A CN 107027217 A CN107027217 A CN 107027217A
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- Prior art keywords
- circuit
- led
- wireless power
- diode
- inductance
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of LED circuit of wireless power.By magnetic coupling resonance wireless power technical controlling LED multi-path lighting circuit, so as to realize the LED multi-path illumination based on wireless power.The LED circuit includes high-frequency signal source, drive circuit, dc source, transmitting coil circuit, metal-oxide-semiconductor, N number of receiving coil circuit and N number of load circuit, and N is positive integer.
Description
Technical field
The present invention relates to a kind of LED circuit of wireless power, belong to the technical field of LED circuit.
Background technology
Non-radiation type magnetic coupling resonance is as novel radio power supply technique, by producing the resonant object of two identical frequencies
It is raw it is very strong intercouple, and there was only weaker coupling to the receiving terminal of disresonance frequence around.Magnetic coupling resonator system includes
Launch resonance coil, secondary reception resonance coil and load.
LED has brightness height, low operating voltage, small power consumption, miniaturization, long lifespan, impact resistance and performance stable due to it
Etc. advantage, it is used widely in fields such as finance, traffic, physical culture, advertisements；LED is operated under environment under low pressure and by electric current
Come
It is driven, typically in LED circuits, the power supply of LED work is obtained from after power supply decompression, at present
Existing LED circuits are complex, and its reduction voltage circuit typically uses capacitance-resistance voltage reduction circuit, the operation principle of capacitance-resistance voltage reduction circuit
It is the capacitive reactance that produces under certain AC signal frequency using electric capacity to limit maximum operating currenbt, the output electricity of this kind of circuit
Stream compared with
Small, with the change of input voltage, LED brightness also changes therewith, and capacitance-resistance step down type power supply is a kind of non-isolated
Electricity
Source, security is relatively low；In addition, the violent change of the high-frequency noise, voltage in LED operating circuits can influence its luminous effect
Really, so needing to take some means to provide stable operating current to LED illuminating circuits in LED circuits；LED
Own temperature can be raised with the growth of fluorescent lifetime, when reach certain high temperature when, LED can occur explosion in addition burns out
Whole LED circuits, cause the economic loss that can not be saved.
LED has the remarkable advantage of energy-conservation, and LED color change can beautify the environment, and wireless power LED is many extraordinary
Occasion has protection against electric shock, the advantage such as explosion-proof.Therefore we need research to realize that more intelligent LED shines based on magnetic coupling wireless power
Obvious results fruit.
The content of the invention
For magnetic coupling resonance wireless power LED illumination application scenario, the technical problems to be solved by the invention are to provide
A kind of LED circuit of wireless power.By magnetic coupling resonance wireless power technical controlling LED multi-path lighting circuit, so as to realize
LED multi-path illumination based on wireless power.
The present invention uses following technical scheme to solve above-mentioned technical problem：
The present invention provides a kind of LED circuit of wireless power, including high-frequency signal source, drive circuit, dc source, transmitting coil
Circuit, metal-oxide-semiconductor, N number of receiving coil circuit and N number of load circuit, N is positive integer, wherein：
The input connection of high-frequency signal source and drive circuit, high-frequency signal is provided to drive circuit；
The output end of drive circuit and the grid of metal-oxide-semiconductor are connected, for the driving force needed for metal-oxide-semiconductor provides high-frequency work；
The two ends of transmitting coil circuit connect the drain electrode of the positive pole of dc source, metal-oxide-semiconductor respectively, the negative pole of the first dc source,
The source electrode of metal-oxide-semiconductor is grounded respectively；
Emission inductance in transmitting coil circuit constitutes an air-core transformer with the reception inductance in each receiving coil；
Each receiving coil circuit connects a load circuit respectively, is that load circuit is powered all the way；
Each load circuit includes a current rectifying and wave filtering circuit, a control circuit and a LED load, rectifying and wave-filtering electricity
Road, control circuit, LED load are sequentially connected.
As the further prioritization scheme of the present invention, transmitting coil circuit includes the first electric capacity and the first inductance in parallel,
The positive pole connection of the common port and dc source of first electric capacity and the first inductance, the drain electrode of another common port and metal-oxide-semiconductor
Connection.
As the further prioritization scheme of the present invention, each receiving coil includes the second inductance and the second electric capacity in parallel.
As the further prioritization scheme of the present invention, current rectifying and wave filtering circuit includes the bridge rectifier being connected and LC filtering
Circuit.
As the further prioritization scheme of the present invention, bridge rectifier includes first to fourth diode, LC filtered electricals
Road includes filter inductance and filter capacitor；Wherein, negative electrode, the receiving coil of the anode of the first diode respectively with the second diode
One end of circuit, negative electrode, the anode of the 3rd diode of the other end of receiving coil circuit respectively with the 4th diode is connected, and
The anode of two diodes anode respectively with the 4th diode, one end of filter capacitor are connected, the other end of filter capacitor and filter
One end connection of ripple inductance, negative electrode, the negative electrode of the first diode of the other end of filter inductance respectively with the 3rd diode is connected.
As the further prioritization scheme of the present invention, control circuit includes a triode and a resistance, the one of resistance
The source electrode of the grid of end connecting triode, the other end and triode is grounded respectively, and the drain electrode of triode and one end of LED load connect
Connect.
As the further prioritization scheme of the present invention, LED load is light emitting diode.
As the further technical scheme of the present invention, the working frequency of metal-oxide-semiconductor and the working frequency one of transmitting coil circuit
Cause.
The present invention uses above technical scheme compared with prior art, with following technique effect：
LED energy signal is included in the energy of transmitting coil by the present invention by studying, the communication electricity special without relying on
Road is that can be achieved to be controlled LED.It is compared to secondary side to compare using independent communication module light modulation, the program need not
The tedious steps such as address matching, it is convenient to be integrated with digitization system, with good application prospect.
Brief description of the drawings
Fig. 1 is a kind of LED circuit diagram of wireless power.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings：
Present aspect provides a kind of wireless power LED illumination System Color control circuit, as shown in figure 1, a kind of LED of wireless power
Circuit, including high-frequency signal source, drive circuit, dc source, transmitting coil circuit, metal-oxide-semiconductor, N number of receiving coil circuit and N
Individual load circuit, wherein：The input connection of high-frequency signal source and drive circuit, high-frequency signal is provided to drive circuit；Driving
The output end of circuit and the grid of metal-oxide-semiconductor are connected, for the driving force needed for metal-oxide-semiconductor provides high-frequency work；Transmitting coil circuit
Two ends connect the drain electrode of the positive pole of dc source, metal-oxide-semiconductor respectively, the negative pole of the first dc source, the source electrode of metal-oxide-semiconductor connect respectively
Ground；Emission inductance in transmitting coil circuit constitutes an air-core transformer with the reception inductance in each receiving coil；Each
Receiving coil circuit connects a load circuit respectively, is that load circuit is powered all the way；Each load circuit includes a rectification
Filter circuit, a control circuit and a LED load, current rectifying and wave filtering circuit, control circuit, LED load are sequentially connected.
Wherein, a receiving coil circuit and a load circuit constitute receiving terminal, the hardware knot of N roads receiving terminal all the way
Structure is identical, but the resonant frequency point per receiving coil all the way can be set different, and to other when being worked per resonance circuit all the way
The influence very little of resonance coil.
Below in conjunction with the accompanying drawings, by transmitting terminal and wherein it is described in detail all the way exemplified by receiving terminal：
The radiating circuit is by dc source V1, metal-oxide-semiconductor Q1, the first inductance（Transmitting coil）L1, the first electric capacity（Transmitting coil resonance
Electric capacity）C1 is constituted, and one end, the L1 one end of V1 positive pole respectively with C1 are connected, the C1 other end, the L1 other end respectively with Q1
Drain electrode connection, the output channel of Q1 grid and drive circuit connected, and V1 negative pole, Q1 source electrode are grounded respectively.
Receiving terminal all the way in the present embodiment is by the second inductance（Receiving coil）L2, the second electric capacity（Receiving coil resonance electricity
Hold）C2, current rectifying and wave filtering circuit, control circuit and LED 1 are constituted, wherein, current rectifying and wave filtering circuit includes diode
D1-D4, filter inductance L3 and filter capacitor C3, control circuit include the first triode Q2 and first resistor R1.L2 one end point
The anode of one end, D1, D2 negative electrode not with C2 are connected, the other end, D3 anode, the D4 the moon of the L1 other end respectively with C2
Pole is connected, and D1 negative electrode one end respectively with L3, D3 negative electrode are connected, L3 other end one end respectively with C3, LED1 sun
Pole is connected, and LED1 negative electrode and Q2 drain electrode are connected, and Q2 grid and R1 one end are connected, the R1 other end, the C3 other end,
D2 anode, D4 anode, Q2 source electrode are grounded respectively.
L1 and L2 constitutes one and magnetic coupling resonance is produced between air-core transformer, and L1 and L2, passes through the magnetic resonance of coil
L2 can receive the active power of L1 transmission, and provide direct current energy after rectified filter circuit for LED1.
The design parameter of the preferred embodiment of the present invention is as follows：Input voltage V1 is 24VDC；Q1 working frequencies are 200kHz；
Switching tube is IPB108N15N3G；Commutation diode is BYG22D；The chip that high-frequency signal source is used is DSP
TMS320F2812；The chip that drive circuit is used is IR2100.
It is described above, it is only the embodiment in the present invention, but protection scope of the present invention is not limited thereto, and appoints
What be familiar with the people of the technology disclosed herein technical scope in, it will be appreciated that the conversion or replacement expected, should all cover
Within the scope of the present invention, therefore, protection scope of the present invention should be defined by the protection domain of claims.
Claims (8)
1. a kind of LED circuit of wireless power, it is characterised in that including high-frequency signal source, drive circuit, dc source, transmitting
Coil circuit, metal-oxide-semiconductor, N number of receiving coil circuit and N number of load circuit, N is positive integer, wherein：
The input connection of high-frequency signal source and drive circuit, high-frequency signal is provided to drive circuit；
The output end of drive circuit and the grid of metal-oxide-semiconductor are connected, for the driving force needed for metal-oxide-semiconductor provides high-frequency work；
The two ends of transmitting coil circuit connect the drain electrode of the positive pole of dc source, metal-oxide-semiconductor respectively, the negative pole of the first dc source,
The source electrode of metal-oxide-semiconductor is grounded respectively；
Emission inductance in transmitting coil circuit constitutes an air-core transformer with the reception inductance in each receiving coil；
Each receiving coil circuit connects a load circuit respectively, is that load circuit is powered all the way；
Each load circuit includes a current rectifying and wave filtering circuit, a control circuit and a LED load, rectifying and wave-filtering electricity
Road, control circuit, LED load are sequentially connected.
2. the LED circuit of a kind of wireless power according to claim 1, it is characterised in that transmitting coil circuit is included simultaneously
The first electric capacity and the first inductance of connection, the positive pole connection of the common port and dc source of the first electric capacity and the first inductance, separately
The drain electrode connection of one common port and metal-oxide-semiconductor.
3. the LED circuit of a kind of wireless power according to claim 1, it is characterised in that each receiving coil is included simultaneously
The second inductance and the second electric capacity of connection.
4. the LED circuit of a kind of wireless power according to claim 1, it is characterised in that current rectifying and wave filtering circuit includes phase
Bridge rectifier and LC filter circuits even.
5. a kind of LED circuit of wireless power according to claim 4, it is characterised in that bridge rectifier includes the
One to the 4th diode, LC filter circuits include filter inductance and filter capacitor；Wherein, the anode of the first diode is respectively with
The negative electrode of two diodes, one end of receiving coil circuit, the other end of receiving coil circuit negative electrode respectively with the 4th diode,
The anode connection of 3rd diode, the anode of the second diode anode respectively with the 4th diode, one end of filter capacitor connect
Connect, one end of the other end of filter capacitor and filter inductance is connected, the moon of the other end of filter inductance respectively with the 3rd diode
Pole, the negative electrode connection of the first diode.
6. the LED circuit of a kind of wireless power according to claim 1, it is characterised in that control circuit includes one three
The source electrode of pole pipe and a resistance, the grid of one end connecting triode of resistance, the other end and triode is grounded respectively, triode
Drain electrode and LED load one end connect.
7. the LED circuit of a kind of wireless power according to claim 1, it is characterised in that LED load is light-emitting diodes
Pipe.
8. the LED circuit of a kind of wireless power according to claim 1, it is characterised in that the working frequency and hair of metal-oxide-semiconductor
The working frequency for penetrating coil circuit is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269871.7A CN107027217A (en) | 2017-04-24 | 2017-04-24 | A kind of LED circuit of wireless power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269871.7A CN107027217A (en) | 2017-04-24 | 2017-04-24 | A kind of LED circuit of wireless power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107027217A true CN107027217A (en) | 2017-08-08 |
Family
ID=59527250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710269871.7A Pending CN107027217A (en) | 2017-04-24 | 2017-04-24 | A kind of LED circuit of wireless power |
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| Country | Link |
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| CN (1) | CN107027217A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883305A (en) * | 2017-10-12 | 2018-04-06 | 无锡昊瑜节能环保设备有限公司 | A kind of field wireless lighting systems |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931736A (en) * | 2012-11-26 | 2013-02-13 | 南京邮电大学 | Magnetic coupled resonance wireless supply power control system |
| CN103066709A (en) * | 2013-01-30 | 2013-04-24 | 江苏华英光宝科技股份有限公司 | Multi-receiving-end magnetic coupling wireless energy transmission system |
| CN103078414A (en) * | 2012-12-30 | 2013-05-01 | 南京邮电大学 | Wireless electric energy transmission device with controllable transmission power and method |
| KR20160121698A (en) * | 2015-04-10 | 2016-10-20 | 서울과학기술대학교 산학협력단 | Apparatus and Method for wireless power transmission capable of frequency selection for LED panel |
-
2017
- 2017-04-24 CN CN201710269871.7A patent/CN107027217A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931736A (en) * | 2012-11-26 | 2013-02-13 | 南京邮电大学 | Magnetic coupled resonance wireless supply power control system |
| CN103078414A (en) * | 2012-12-30 | 2013-05-01 | 南京邮电大学 | Wireless electric energy transmission device with controllable transmission power and method |
| CN103066709A (en) * | 2013-01-30 | 2013-04-24 | 江苏华英光宝科技股份有限公司 | Multi-receiving-end magnetic coupling wireless energy transmission system |
| KR20160121698A (en) * | 2015-04-10 | 2016-10-20 | 서울과학기술대학교 산학협력단 | Apparatus and Method for wireless power transmission capable of frequency selection for LED panel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883305A (en) * | 2017-10-12 | 2018-04-06 | 无锡昊瑜节能环保设备有限公司 | A kind of field wireless lighting systems |
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Application publication date: 20170808 |