CN202979363U - Multi-output LED driving system and semiconductor lighting device - Google Patents
Multi-output LED driving system and semiconductor lighting device Download PDFInfo
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- CN202979363U CN202979363U CN 201220413217 CN201220413217U CN202979363U CN 202979363 U CN202979363 U CN 202979363U CN 201220413217 CN201220413217 CN 201220413217 CN 201220413217 U CN201220413217 U CN 201220413217U CN 202979363 U CN202979363 U CN 202979363U
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Abstract
The utility model relates to a multi-output LED driving system and a semiconductor lighting device. The driving system comprises a rectifying device, which is connected with an external source for rectification and power supply, and a power supply device, which supplies power for a load in cooperation with the rectifying device when the driving system is connected with the load. The two output terminals of the power supply device and the output terminal of the rectifying device are respectively connected with the load, and the driving system includes three output terminals. The utility model provides a semiconductor light source driving system and the semiconductor lighting device, wherein the structure is simple, and cost is low.
Description
Technical field
The utility model relates to a kind of drive system of semiconductor light sources, and more particularly, relates to a kind of LED drive system and semiconductor illumination device of multichannel output.
Background technology
Semiconductor light sources (LED) is light source and the display device of third generation semi-conducting material manufacturing, has that power consumption is few, the life-span long, characteristics such as pollution-free, rich color, controllability are strong, is the revolution of lighting source and light industry.Along with the development of LED, increasing LED illuminating product floods the market.The electric drive of LED is partly indispensable part in the LED illuminating product.
LED drives and uses constant current output mostly at present, but the bringing onto load power limited is with more high power load as needs, needs the driver output electric current is strengthened, and the transformation efficiency of driver is lower like this, and cost is higher, can not effectively embody the power savings advantages of illumination LED of new generation.In addition, exist at present non-integral LED to drive, connect LED light source in the energising situation, easily produce overshoot phenomenon, cause LED to lose efficacy.
Therefore, how to provide a kind of simple in structure, outstanding problem that optical semiconductor source driving system that cost is low, loss in efficiency reduces becomes the semiconductor applications development.For problems of the prior art, LED drive system and semiconductor illumination device that this programme proposes a kind of multichannel output are one of optical semiconductor source driving system technical field problems at present anxious to be resolved.
The utility model content
The purpose of this utility model is to provide a kind of simple in structure, and the non-constant width of range of application is with low cost mainly for the electric drive circuit in the LED illuminating product.The utility model uses less components and parts to realize the electric drive part of LED, component number and cost have been greatly reduced, the ratio that electric drive is partly accounted in the LED illuminator is significantly dwindled, and the characteristics that lamps structure is simple, cost is low, loss in efficiency reduces.
The utility model embodiment provides a kind of LED drive system of multichannel output, and described drive system comprises:
Rectifying device, this rectifying device are used for connecting external power source, carry out rectification and power supply;
Electric supply installation is used for when drive system is connected with load, coordinates rectifying device that load is powered;
Wherein, the output of two of electric supply installation outputs and rectifying device is connected with load respectively.
According to the utility model embodiment, described rectifying device connects external power source and includes fuse, when external power source is AC power, input voltage range is 120V/50～60Hz～240V/50～60Hz, and when external power source is DC power supply, input voltage range is 12V～400V.
According to the utility model embodiment, described rectifying device includes bridge diode and is used for rectification.
According to the utility model embodiment, described electric supply installation comprises single or multiple LED buck driver circuits unit.
According to the utility model embodiment, described LED buck driver circuit unit includes but not limited to Buck-boost unit and/or Tapped Buck unit and/or Buck unit.
According to the utility model embodiment, described electric supply installation further includes control unit and energy storage and energy release unit, and described control unit is connected with this energy storage and energy release unit, and is used for controlling the energy storage of this energy storage and energy release unit and releases energy.
According to the utility model embodiment, further comprise a filter, described filter is connected with described rectifying device, is used for receiving the commutating voltage of self-rectified apparatus and carrying out filtering, and described filter is the electromagnetic compatibility filter circuit.
According to the utility model embodiment, described electric supply installation when drive system is connected with load, coordinates rectifying device that load is powered, and described energy storage and energy release unit powers to load under the control of control unit.
According to the utility model embodiment, further, described drive system includes three outputs.
A kind of semiconductor illumination device comprises:
The semiconductor light sources load;
Rectifying device, this rectifying device are used for connecting external power source, carry out rectification and power supply;
Electric supply installation is used for when drive system is connected with load, coordinates rectifying device that load is powered;
Wherein, the output of two of electric supply installation outputs and rectifying device is connected with load respectively.
According to the utility model embodiment, described electric supply installation further includes control unit and energy storage and energy release unit, and described control unit is connected with this energy storage and energy release unit, and is used for controlling the energy storage of this energy storage and energy release unit and releases energy.
According to the utility model embodiment, described electric supply installation coordinates rectifying device that load is powered, and described energy storage and energy release unit powers to the semiconductor light source load under the control of control unit.
According to the utility model embodiment, described load is single or multiple LED groups.
According to the utility model embodiment, the constituted mode of described LED group includes but not limited to be connected in series or is connected in parallel or mixed type syndeton that connection in series-parallel connects is electrically connected to.
According to the utility model embodiment, the output of described rectifying device and electric supply installation the first output respectively with the first end of load be connected end and be connected, electric supply installation the second output is connected with the 3rd end of load.
According to below with reference to accompanying drawing to description of the present utility model, other targets of the present utility model and effectiveness will become apparent, and the reader can fully understand the utility model.
Description of drawings
Fig. 1 is LED drive system schematic diagram.
Fig. 2 is the LED driving system circuit figure according to the utility model the first embodiment.
Fig. 3 is the electric supply installation structural representation one according to the LED drive system of the utility model the first embodiment.
Fig. 4 is the electric supply installation structural representation two according to the LED drive system of the utility model the first embodiment.
Fig. 5 is the electric supply installation structural representation three according to the LED drive system of the utility model the first embodiment.
Fig. 6 is the LED driving system circuit figure according to the utility model the second embodiment.
Fig. 7-10th is according to the LED drive system operation principle schematic diagram of the utility model embodiment.
In above-mentioned accompanying drawing, same reference numerals identical, the similar or corresponding element of indication or function.
Embodiment
Hereinafter describe specific embodiment of the utility model with reference to graphic in detail by embodiment.
Fig. 1 is the schematic diagram of LED drive system described in the utility model.
Rectifying device is used for connecting external power source, carries out rectification and power supply;
Electric supply installation is used for when drive system is connected with load, coordinates rectifying device that load is powered.
Fig. 2 is the LED driving system circuit figure according to the utility model the first embodiment.
Particularly, in the utility model embodiment, the interchange that includes fuse 11 (AC) power supply that is provided by the outside is provided for rectifying device 10, one end, and the other end (output) 12 is connected to load device 40; Electric supply installation 30 is used for when drive system is connected with load device 40, and 10 pairs of load devices 40 of cooperation rectifying device are powered, and the first output 31 of electric supply installation 30 and the second end output 32 are connected to load device 40.
In Fig. 2, external communication (AC) power supply (for example, 120VAC) can be business AC line voltage distribution, and when as shown in Figure 2 with bridge diode (comprising four unipolar tube D1, D2, D3, D4) when being applied to rectifying device 10, can be full-wave rectified voltage with the AC Voltage-output of input, and suitable electric current is offered load device 40.
In this article, the interchange that includes fuse 11 (AC) power supply that the outside provides, its input voltage range is for exchanging (AC) power supply 120V/50～60Hz～240V/50～60Hz, and input voltage range is direct current (DC) power supply 12V～400V.
As shown in Figure 2, in this programme, electric supply installation 30 is particularly LED buck driver circuit unit, and its form of the composition includes but not limited to that single or multiple Buck-boost connect, Tapped Buck connects, Buck connects.
Particularly, in the utility model the first embodiment, as shown in Figures 2 and 3, electric supply installation 30 comprises a Buck-boost link block, wherein, and the Buck-boost link block:
The Buck-boost link block comprises the second inductance 301, the first electrolytic capacitor 302, the 5th unipolar tube 303, the first switch 304 and control signal 305, wherein, the first end of the first end of the second inductance 301, the first electrolytic capacitor 302 first ends and control signal 305 connects; The second inductance 301 is in parallel with the first electrolytic capacitor 302, and the second end of the second inductance 301 is connected with the first end of the 5th unipolar tube 303 and the first switch 304, and the second end of the first electrolytic capacitor 302 is connected with the second end of the 5th unipolar tube 303; The second end of the first switch 304 is connected with the second end of control signal 305, and the 3rd end of the first switch 304 can ground connection.The first end of the first electrolytic capacitor 302 be connected end and be connected with load device 40 respectively.
Wherein, the output of two of electric supply installation outputs and rectifying device is connected with load respectively.Further, in this programme the output 12 of rectifying device and electric supply installation the first output 31 respectively with the first end 41 of load 40 be connected end 42 and be connected, electric supply installation the second output 32 is connected with the 3rd end 43 of load 40.
Further, in the utility model, electric supply installation 30 can comprise single or multiple Buck-boost link blocks.
Fig. 4 is the electric supply installation structural representation two according to the LED drive system of the utility model the first embodiment.
Particularly, in the utility model embodiment, electric supply installation 30 is particularly LED buck driver circuit unit, its form of the composition includes but not limited to that single or multiple Tapped Buck connect, namely comprise single or multiple Tapped Buck link blocks, wherein, Tapped Buck link block schematic diagram is as shown in Figure 4:
The Buck-boost link block comprises the 6th unipolar tube 501, the second electrolytic capacitor 502, transformer 503, second switch 504 and control signal 505, wherein, transformer 503 is comprised of the 3rd inductance 5031 and the 4th inductance 5032 of mutual inductance, further in this programme, the first end of the first end of the 6th unipolar tube 501, the second electrolytic capacitor 502 first ends and control signal 505 connects; The 6th unipolar tube 501 is in parallel with the second electrolytic capacitor 502, and the second end of the 6th unipolar tube 501 is connected with the second end of the 3rd inductance 5031 and the first end of the 4th inductance 5032, the first end of the 3rd inductance 5031 is connected with the first end of second switch 504, and the second end of the second electrolytic capacitor 502 is connected with the second end of the 4th inductance 5032; The second end of second switch 504 is connected with the second end of control signal 505, and the 3rd end of second switch 504 can ground connection.The first end of the second electrolytic capacitor 502 be connected end and be connected with load device 40 respectively, load device 40 also is connected with the second end of electric supply installation 30 in addition.
Fig. 5 is the electric supply installation structural representation three according to the LED drive system of the utility model the first embodiment.
Particularly, in the utility model the 3rd embodiment, electric supply installation 30 is particularly LED buck driver circuit unit, its form of the composition includes but not limited to that single or multiple Buck connect, namely comprise single or multiple Buck link blocks, wherein, Buck link block schematic diagram is as shown in Figure 5:
The Buck link block comprises the 7th unipolar tube 601, the 3rd electrolytic capacitor 602, the 5th inductance 603, the 3rd switch 604 and control signal 605, wherein, the first end of the first end of the 7th unipolar tube 601, the 3rd electrolytic capacitor 602 first ends and control signal 605 connects; The 7th unipolar tube 601 is in parallel with the 3rd electrolytic capacitor 602, and the second end of the 7th unipolar tube 601 is connected with the first end of the 5th inductance 603 and the 3rd switch 604, and the second end of the 3rd electrolytic capacitor 602 is connected with the second end of the 5th inductance 603; The second end of the 3rd switch 604 is connected with the second end of control signal 605, and the 3rd end of the 3rd switch 604 can ground connection.The first end of the 3rd electrolytic capacitor 602 be connected end and be connected with load device 40 respectively, load device 40 also is connected with the second end of electric supply installation 30 in addition.
Further, in the utility model, the output current scope 20mA～300mA of electric supply installation 30, output voltage range 12V～300V.
In Fig. 2, particularly in this programme, load device 40 is single or multiple LED groups.Load device 40 can be the light source that comprises at least one LED, and can comprise a plurality of LED with various electrical connections.In Fig. 2, a plurality of LED that consist of load device 40 illustrate with the state that is connected in series, but in load device 40, included a plurality of LED also can be according to the application system of using LED and to be connected in series or to be connected in parallel or mixed type syndeton that connection in series-parallel connects is electrically connected to.
In the second embodiment of the present utility model, further comprise a filter 20, as shown in Figure 6:
The interchange that includes fuse 11 (AC) power supply that is provided by the outside is provided for rectifying device 10, one end, and the other end is connected to filter 20; Filter 20, reception comes the commutating voltage of self-rectified apparatus 10, and the other end of filter 20 is connected to electric supply installation 30; Electric supply installation 30 receives the filtering voltage from filter 20 outputs, and the first end output 31 of electric supply installation 30 and the second end output 32 are connected to load device 40; And load device 40, receive in order to drive the electric power of single or multiple LED groups from electric supply installation 30.
In Fig. 6, interchange (AC) power supply that an end of rectifying device 10 can be connected to, its other end can connect filter 20.External communication (AC) power supply (for example, 120VAC) can be business AC line voltage distribution, and when as shown in Figure 6 with bridge diode (comprising four unipolar tube D1, D2, D3, D4) when being applied to rectifying device 10, can be full-wave rectified voltage with the AC Voltage-output of input.The voltage of rectification can input to filter 20 in rectifying device 10, and suitable electric current is offered load device 40.
In Fig. 6, filter 20 comprises the first electric capacity 201, the second electric capacity 202 and the first inductance 203, bridge diode one end in the first end of the first inductance 203 and rectifying device 10 and the first end of the first electric capacity 201 are connected, and the second end of the first inductance 203 is connected with the first end of the first end of electric supply installation 30 and the second electric capacity 202; The second end of the second end of the first electric capacity 201 and the second electric capacity 202 is ground connection respectively.
The electric supply installation 30 of the utility model the second embodiment is also particularly LED buck driver circuit unit, and its form of the composition includes but not limited to that single or multiple Buck-boost connect, Tapped Buck connects, Buck connects.Wherein, the output 12 of rectifying device 10 and electric supply installation the first output 31 respectively with the first end 41 of load 40 be connected end 42 and be connected, electric supply installation the second output 32 is connected with the 3rd end 43 of load 40.
Fig. 7-10th is according to the LED drive system operation principle schematic diagram of the utility model embodiment.Electric supply installation 30 when drive system is connected with load device 40, coordinates 10 pairs of loads of rectifying device to power; Have the unit of energy storage and energy release under the control of control signal 305, load device 40 is powered.Wherein, the output 12 of rectifying device and electric supply installation the first output 31 respectively with the first end 41 of load 40 be connected end 42 and be connected, electric supply installation the second output 32 is connected with the 3rd end 43 of load 40.
As shown in Figure 7, after power supply Vin energising, electric current passes through output 12, load device first end 41 and second end 42 of rectifying device 10 successively, first end output 31 by electric supply installation 30 is control signal 305 power supplies again, after control signal 305 starts, make it begin to control the first switch 304 and open and close.
As shown in Figure 8, after the first switch 304 conductings, electric current flows through output 12, load device first end 41 and second end 42 of rectifying device 10, first end output 31 by electric supply installation 30 flows through the second inductance 301 again, and then flow through the first switch 304, then the second inductance 301 begins energy storage.
As shown in Figure 9, the first switch 304 turn-offs, the second inductance 301 begins to release can, generation current is the first electrolytic capacitor 302 chargings through the 5th unipolar tube 303, electric current is by the second end output 32, load device the 3rd end 43 and second end 42 of electric supply installation 30 simultaneously, and the first end output 31 of electric supply installation 30 is that load device 40 is powered for semiconductor light sources load (LED load).
As shown in figure 10, the first switch 304 conductings, electric current flows through output 12, load device first end 41 and second end 42 of rectifying device 10, pass through again the first end output 31 of electric supply installation 30, then flow through the second inductance 301, the first switch 304, the second inductance 301 beginning energy storage, the first electrolytic capacitor 302 is by the second end output 32, load device the 3rd end 43 and second end 42 of electric supply installation 30 simultaneously, and the first end output 31 of electric supply installation 30 is that load device 40 is powered for semiconductor light sources load (LED load).
Above-described embodiment is exemplary, and does not wish they restrictions technical method of the present utility model.Although describe the utility model in detail with reference to preferred embodiment; but be understood by those skilled in the art that; can be in the situation that do not depart from the spirit of the utility model technical method and category and revise or be equal to and replace technical method of the present utility model, these modifications and be equal to the protection category that replacement also belongs to the utility model claims.
Claims (16)
1. the LED drive system of multichannel output comprises:
Rectifying device, this rectifying device are used for connecting external power source, carry out rectification and power supply;
Electric supply installation is used for when drive system is connected with load, coordinates rectifying device that load is powered;
Wherein, the output of two of electric supply installation outputs and rectifying device is connected with load respectively.
2. LED drive system as claimed in claim 1, described rectifying device connects external power source and includes fuse, when external power source is AC power, input voltage range is 120V/50～60Hz～240V/50～60Hz, and when external power source is DC power supply, input voltage range is 12V～400V.
3. LED drive system as claimed in claim 1, described rectifying device include bridge diode and are used for rectification.
4. LED drive system as claimed in claim 1, described electric supply installation comprise single or multiple LED buck driver circuits unit.
5. LED drive system as claimed in claim 4, described LED buck driver circuit unit include but not limited to Buck-boost unit and/or Tapped Buck unit and/or Buck unit.
6. LED drive system as claimed in claim 1, described electric supply installation further includes control unit and energy storage and energy release unit, and described control unit is connected with this energy storage and energy release unit, and is used for controlling the energy storage of this energy storage and energy release unit and releases energy.
7. LED drive system as claimed in claim 1, further comprise a filter, and described filter is connected with described rectifying device, is used for receiving the commutating voltage of self-rectified apparatus and carrying out filtering, and described filter is the electromagnetic compatibility filter circuit.
8. LED drive system as described in claim 1 or 6, described electric supply installation when drive system is connected with load, coordinates rectifying device that load is powered, and described energy storage and energy release unit powers to load under the control of control unit.
9. LED drive system as claimed in claim 1, further, this drive system includes three outputs.
10. LED drive system as claimed in claim 1, further, the output of described rectifying device and electric supply installation the first output respectively with the first end of load be connected end and be connected, electric supply installation the second output is connected with the 3rd end of load.
11. the semiconductor illumination device of a multichannel output comprises:
The semiconductor light sources load;
Rectifying device, this rectifying device are used for connecting external power source, carry out rectification and power supply;
Electric supply installation is used for when drive system is connected with load, coordinates rectifying device that load is powered;
Wherein, the output of two of electric supply installation outputs and rectifying device is connected with load respectively.
12. semiconductor illumination device as claimed in claim 11, described electric supply installation further includes control unit and energy storage and energy release unit, and described control unit is connected with this energy storage and energy release unit, and is used for controlling the energy storage of this energy storage and energy release unit and releases energy.
13. semiconductor illumination device as described in claim 11 or 12, described electric supply installation coordinate rectifying device that load is powered, described energy storage and energy release unit powers to the semiconductor light source load under the control of control unit.
14. semiconductor illumination device as claimed in claim 11, described load are single or multiple LED groups.
15. semiconductor illumination device as claimed in claim 14, the constituted mode of described LED group include but not limited to be connected in series or are connected in parallel or mixed type syndeton that connection in series-parallel connects is electrically connected to.
16. semiconductor illumination device as claimed in claim 11, further, the output of described rectifying device and electric supply installation the first output respectively with the first end of load be connected end and be connected, electric supply installation the second output is connected with the 3rd end of load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220413217 CN202979363U (en) | 2012-08-16 | 2012-08-16 | Multi-output LED driving system and semiconductor lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220413217 CN202979363U (en) | 2012-08-16 | 2012-08-16 | Multi-output LED driving system and semiconductor lighting device |
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| Publication Number | Publication Date |
|---|---|
| CN202979363U true CN202979363U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220413217 Expired - Fee Related CN202979363U (en) | 2012-08-16 | 2012-08-16 | Multi-output LED driving system and semiconductor lighting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946665A (en) * | 2012-08-16 | 2013-02-27 | 欧普照明股份有限公司 | Multiway-out LED driving system and semi-conductor lighting device |
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2012
- 2012-08-16 CN CN 201220413217 patent/CN202979363U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946665A (en) * | 2012-08-16 | 2013-02-27 | 欧普照明股份有限公司 | Multiway-out LED driving system and semi-conductor lighting device |
| WO2014026461A1 (en) * | 2012-08-16 | 2014-02-20 | 欧普照明股份有限公司 | Multi-output led drive system and semiconductor illumination device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20210816 |
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| CF01 | Termination of patent right due to non-payment of annual fee |