CN205454171U - LED (Light -Emitting diode) lighting system - Google Patents
LED (Light -Emitting diode) lighting system Download PDFInfo
- Publication number
- CN205454171U CN205454171U CN201620228047.8U CN201620228047U CN205454171U CN 205454171 U CN205454171 U CN 205454171U CN 201620228047 U CN201620228047 U CN 201620228047U CN 205454171 U CN205454171 U CN 205454171U
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- Prior art keywords
- circuit
- led
- switch
- voltage
- filter circuit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The utility model discloses a LED (Light -Emitting diode) lighting system, including switching power supply and lighting load, switching power supply includes high -pressure rectification filter circuit, switch voltage stabilizing circuit, current foldback circuit, low pressure rectification filter circuit and switching transformer, high pressure rectification filter circuit, switch voltage stabilizing circuit and switching transformer's high -pressure side three links to each other and forms the first loop, and low pressure rectification filter circuit, current foldback circuit and switching transformer's low -pressure end three links to each other and forms the second return circuit, has connected gradually sample comparison circuit and voltage stabilizing circuit 0 circuit between current foldback circuit and the switch voltage stabilizing circuit, the lighting load is connected between low pressure rectification filter circuit's output and sample comparison circuit's output. The utility model discloses optimized rectification, filtering, step -down and constant current circuit's structure, had safely, stable and the efficient advantage.
Description
Technical field
This utility model relates to lighting technical field, especially relates to a kind of LED illumination System.
Background technology
In existing LED illumination System, mostly it is that 220V power supply is directly accessed in the LED spotlight being installed in functional area and LED pendent lamp by zero live wire, and be to reach stable power supply effect, then need to be internally provided with rectification, filtering, blood pressure lowering and constant-current circuit at each LED light source.If as a example by one family unit, the electronic component for lighting source then can be the most hundreds of individual, so, not only bad for the heat radiation within LED light source, will also result in the waste of resource.It addition, the radiator many employings metal arranged in existing LED light source or non-insulating material, so, the effect of rectification, filtering, blood pressure lowering and constant voltage can be affected on the contrary, reduce the safety run.
Utility model content
The purpose of this utility model is the problems referred to above overcoming prior art, a kind of LED illumination System is provided, this system optimization structure of rectification, filtering, blood pressure lowering and constant-current circuit, greatly reduces the quantity of lighting load internal electronic element, has safe and stable and efficient advantage.
The purpose of this utility model is achieved through the following technical solutions:
Including Switching Power Supply and lighting load；
Switching Power Supply includes high-voltage rectifying filter circuit, switch voltage-stabilizing circuit, current foldback circuit, lower pressure rectifier filter circuit and switch transformer；
The high-pressure side three of high-voltage rectifying filter circuit, switch voltage-stabilizing circuit and switch transformer is connected to form the first loop; the low-pressure end three of lower pressure rectifier filter circuit, current foldback circuit and switch transformer is connected to form second servo loop, is connected with sampling comparison circuit and photoelectric coupling circuit between current foldback circuit and switch voltage-stabilizing circuit in turn；
Lighting load is connected between the outfan of lower pressure rectifier filter circuit and the outfan of sampling comparison circuit.
During this utility model application, the input of high-voltage rectifying filter circuit accesses civil power, and high-voltage rectifying filter circuit will obtain the unidirectional current of positive about 300V, and supplies switch voltage-stabilizing circuit after civil power 220V or 380V rectifying and wave-filtering.First loop is high frequency oscillation circuit; so then produce a high frequency low voltage alternating current at switch transformer low-pressure end; second servo loop is the low-voltage direct output loop with multinomial defencive function, then obtains a constant voltage low-voltage DC, and supply lighting load use after lower pressure rectifier filter circuit.Current foldback circuit, sampling comparison circuit, photoelectric coupling circuit, switch voltage-stabilizing circuit and switch transformer are collectively forming overcurrent protection loop.When lighting load quit work or short circuit, overload time; current foldback circuit then provides a signal of telecommunication to sampling comparison circuit; sampling comparison circuit obtains magnitude of voltage by comparing; and this magnitude of voltage is supplied to photoelectric coupling circuit; finally it is sent to switch voltage-stabilizing circuit so that switch voltage-stabilizing circuit is operated in low frequency state, and then allows whole Switching Power Supply be maintained at the sleep state of low output; so, it is possible to decrease the consumption of Switching Power Supply itself.Wherein, the setting of photoelectric coupling circuit can ensure the high-pressure side in isolating switch power and low-pressure end while transmitting telecommunication number.
For filtering out the interference of electrical network, further, also including anti-jamming circuit, the outfan of anti-jamming circuit is connected with the input of described high-voltage rectifying filter circuit.Also can be by the High-frequency Interference in Switching Power Supply and mains isolation by the setting of anti-jamming circuit.
Further, the first intelligent expansion interface it is additionally provided with between described switch voltage-stabilizing circuit and described photoelectric coupling circuit.By the setting of the first intelligent expansion interface, remotely controlling and intelligent interconnection control of light can be realized.
Further, described lighting load includes the many groups of LED modules being arranged in parallel, and is provided with LED string and the constant-current circuit connect with LED series winding in each group of LED module, and LED string includes the LED lamp bead of multiple series connection.By the setting of Switching Power Supply, in each LED module, only need to be provided with constant-current circuit can ensure stable, safety and run efficiently.And the setting organizing LED module is advantageously implemented the demand of several functions area illumination more.
For ease of controlling the switch of each group of LED module, further, the loop that LED module described in each group and described Switching Power Supply are formed is provided with control switch.
Further, also include that control panel, described control switch arrange on the control panel, and be additionally provided with the second intelligent expansion interface on this control panel.By the setting of the first intelligent expansion interface, remotely controlling and intelligent interconnection control of light can be realized.
This utility model has the advantages that
1, this utility model optimizes the structure of rectification, filtering, blood pressure lowering and constant-current circuit, each functional circuit module is incorporated in Switching Power Supply, greatly reduce the quantity of lighting load internal electronic element, and then substantially increase safety and the stability of whole illuminator.
2, in this utility model; first loop is high frequency oscillation circuit; so then produce a high frequency low voltage alternating current at switch transformer low-pressure end; second servo loop is the low-voltage direct output loop with multinomial defencive function; Switching Power Supply the most then can be made to export one group or multigroup safety reliable constant voltage low-voltage DC, and supply lighting load use.
3, only having the high-tension electricity of 220V in whole system inside Switching Power Supply, other work are held at the DC state of safety low-pressure, substantially increase the safety of whole illuminator.
4, quit work when lighting load or short circuit, overload time; current foldback circuit then provides a signal of telecommunication to sampling comparison circuit; sampling comparison circuit obtains magnitude of voltage by comparing; and this magnitude of voltage is supplied to photoelectric coupling circuit; finally it is sent to switch voltage-stabilizing circuit so that switch voltage-stabilizing circuit is operated in low frequency state, and then allows whole Switching Power Supply be maintained at the sleep state of low output; so, it is possible to decrease the consumption of Switching Power Supply itself.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of LED illumination System described in the utility model；
Fig. 2 is the circuit diagram of embodiment 2.
Entitled corresponding to reference in accompanying drawing: 1, anti-jamming circuit, 2, high-voltage rectifying filter circuit, 3, switch voltage-stabilizing circuit; 4, photoelectric coupling circuit, 5, sampling comparison circuit, 6, current foldback circuit; 7, lower pressure rectifier filter circuit, 8, switch transformer, 9, LED string; 10, constant-current circuit, 11, LED module, 12, Switching Power Supply; 13, lighting load; 14, switch, the 15, first intelligent expansion interface, the 16, second intelligent expansion interface are controlled.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1
As it is shown in figure 1, a kind of LED illumination System, including Switching Power Supply 12 and lighting load 13；
Switching Power Supply 12 includes high-voltage rectifying filter circuit 2, switch voltage-stabilizing circuit 3, current foldback circuit 6, lower pressure rectifier filter circuit 7 and switch transformer 8；
The high-pressure side three of high-voltage rectifying filter circuit 2, switch voltage-stabilizing circuit 3 and switch transformer 8 is connected to form the first loop; the low-pressure end three of lower pressure rectifier filter circuit 7, current foldback circuit 6 and switch transformer 8 is connected to form second servo loop, is connected with sampling comparison circuit 5 and photoelectric coupling circuit 4 between current foldback circuit 6 and switch voltage-stabilizing circuit 3 in turn；
Lighting load 13 is connected between the outfan of lower pressure rectifier filter circuit 7 and the outfan of sampling comparison circuit 5.
During the present embodiment application, the input of high-voltage rectifying filter circuit 2 accesses civil power, and high-voltage rectifying filter circuit 2 will obtain the unidirectional current of positive about 300V, and supplies switch voltage-stabilizing circuit 3 after civil power 220V or 380V rectifying and wave-filtering.First loop is high frequency oscillation circuit; so then produce a high frequency low voltage alternating current at switch transformer 8 low-pressure end; second servo loop is the low-voltage direct output loop with multinomial defencive function; after lower pressure rectifier filter circuit 7, then obtain a constant voltage low-voltage DC, and supply lighting load 13 and use.Current foldback circuit 6, sampling comparison circuit 5, photoelectric coupling circuit 4, switch voltage-stabilizing circuit 3 and switch transformer 8 are collectively forming overcurrent protection loop.When lighting load 13 quit work or short circuit, overload time; current foldback circuit 6 then provides a signal of telecommunication to sampling comparison circuit 5; sampling comparison circuit 5 obtains magnitude of voltage by comparing; and this magnitude of voltage is supplied to photoelectric coupling circuit 4; finally it is sent to switch voltage-stabilizing circuit 3 so that switch voltage-stabilizing circuit 3 is operated in low frequency state, and then allows whole Switching Power Supply 12 be maintained at the sleep state of low output; so, it is possible to decrease the consumption of Switching Power Supply 12 itself.Wherein, the setting of photoelectric coupling circuit 4 can ensure the high-pressure side in isolating switch power 12 and low-pressure end while transmitting telecommunication number.
For filtering out the interference of electrical network, it is preferable that also include that anti-jamming circuit 1, the outfan of anti-jamming circuit 1 are connected with the input of described high-voltage rectifying filter circuit 2.Also can be by the High-frequency Interference in Switching Power Supply 12 and mains isolation by the setting of anti-jamming circuit 1.
Preferably, the first intelligent expansion interface 16 it is additionally provided with between described switch voltage-stabilizing circuit 3 and described photoelectric coupling circuit 4.
Embodiment 2
As shown in Figure 2, the present embodiment has been made on the basis of embodiment 1 and having been limited further below: described lighting load 13 includes the many groups of LED modules 11 being arranged in parallel, being provided with LED string 9 and the constant-current circuit 10 being connected with LED string 9 in each group of LED module 11, LED string 9 includes the LED lamp bead of multiple series connection.
In the present embodiment, by the setting of Switching Power Supply 12, in each LED module 11, only need to be provided with constant-current circuit 10 can ensure stable, safety and run efficiently.And the setting organizing LED module 11 is advantageously implemented the demand of several functions area illumination more.
For ease of controlling the switch of each group of LED module 11, it is preferable that be provided with control switch 14 on the loop that LED module 11 and described Switching Power Supply 12 described in each group are formed.
Preferably, also include that control panel, described control switch 14 setting on the control panel, and are additionally provided with the second intelligent expansion interface 15 on this control panel.
Above content is to combine the further description that this utility model is made by concrete preferred implementation, it is impossible to assert that detailed description of the invention of the present utility model is confined to these explanations.For this utility model person of an ordinary skill in the technical field, other embodiments drawn under without departing from the technical solution of the utility model, should be included in protection domain of the present utility model.
Claims (6)
1. a LED illumination System, it is characterised in that: include Switching Power Supply (12) and lighting load (13)；
Switching Power Supply (12) includes high-voltage rectifying filter circuit (2), switch voltage-stabilizing circuit (3), current foldback circuit (6), lower pressure rectifier filter circuit (7) and switch transformer (8)；
The high-pressure side three of high-voltage rectifying filter circuit (2), switch voltage-stabilizing circuit (3) and switch transformer (8) is connected to form the first loop; the low-pressure end three of lower pressure rectifier filter circuit (7), current foldback circuit (6) and switch transformer (8) is connected to form second servo loop, is connected with sampling comparison circuit (5) and photoelectric coupling circuit (4) between current foldback circuit (6) and switch voltage-stabilizing circuit (3) in turn；Lighting load (13) is connected between the outfan of lower pressure rectifier filter circuit (7) and the outfan of sampling comparison circuit (5).
A kind of LED illumination System the most according to claim 1, it is characterised in that: also include that anti-jamming circuit (1), the outfan of anti-jamming circuit (1) are connected with the input of described high-voltage rectifying filter circuit (2).
A kind of LED illumination System the most according to claim 1, it is characterised in that: it is additionally provided with the first intelligent expansion interface (16) between described switch voltage-stabilizing circuit (3) and described photoelectric coupling circuit (4).
4. according to a kind of LED illumination System described in any one in claim 1 ~ 3, it is characterized in that: described lighting load (13) includes the many groups of LED modules (11) being arranged in parallel, being provided with LED string (9) and the constant-current circuit (10) being connected with LED string (9) in each group of LED module (11), LED string (9) includes the LED lamp bead of multiple series connection.
A kind of LED illumination System the most according to claim 4, it is characterised in that: it is provided with control switch (14) on the loop that LED module (11) described in each group and described Switching Power Supply (12) are formed.
A kind of LED illumination System the most according to claim 5, it is characterised in that: also include that control panel, described control switch (14) arrange on the control panel, and be additionally provided with the second intelligent expansion interface (15) on this control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620228047.8U CN205454171U (en) | 2016-03-23 | 2016-03-23 | LED (Light -Emitting diode) lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620228047.8U CN205454171U (en) | 2016-03-23 | 2016-03-23 | LED (Light -Emitting diode) lighting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205454171U true CN205454171U (en) | 2016-08-10 |
Family
ID=56574831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620228047.8U Expired - Fee Related CN205454171U (en) | 2016-03-23 | 2016-03-23 | LED (Light -Emitting diode) lighting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205454171U (en) |
-
2016
- 2016-03-23 CN CN201620228047.8U patent/CN205454171U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160810 Termination date: 20210323 |