CN206181444U - Automatic circuit of identification form cluster of lamps, ornamental pearl trouble - Google Patents
Automatic circuit of identification form cluster of lamps, ornamental pearl trouble Download PDFInfo
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- CN206181444U CN206181444U CN201621190641.9U CN201621190641U CN206181444U CN 206181444 U CN206181444 U CN 206181444U CN 201621190641 U CN201621190641 U CN 201621190641U CN 206181444 U CN206181444 U CN 206181444U
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Abstract
The utility model discloses an automatic circuit of identification form cluster of lamps, ornamental pearl trouble, put LM1, LM2, LM3, LM4, resistance R1, R2, R3, R4, R5, R6, R7, R8, MOS pipe Q1, Q2, Q3, Q4 including fortune. The utility model discloses a circuit uses a powerful constant current power supply, and when drive many compact lamp pearls or lamp pearl module, to one or more module fault detection's a circuit wherein, the detectable is to the one or more module trouble wherein after, and the automation reduces power output's electric current to guarantee the lamp pearl life -span, make the lamp pearl avoid the overcurrent influence and age at the excessive speed. Can support 1 be joined in marriage to this circuit 10V adjusts luminance the power and uses, also can directly integrate and adjust the constant current datum point in the inside directness of constant current source.
Description
Technical field
The utility model is related to LED circuit, and in particular to a kind of circuit of automatic identification list cluster of lamps, ornamental pearl failure.
Background technology
At present, in real use using 1 large power supply drive multiple COB lamp beads or module when, when wherein one
Will cause that the electric current of this module should be driven to be loaded into by force on remaining module during individual module failure, cause other module mistakes
Carry, accelerate to damage so as to cause other module excessively streams.
The content of the invention
The utility model is regarding to the issue above, there is provided a kind of circuit of automatic identification list cluster of lamps, ornamental pearl failure, including amplifier
LM1, LM2, LM3, LM4, resistance R1, R2, R3, R4, R5, R6, R7, R8, metal-oxide-semiconductor Q1, Q2, Q3, Q4；The 1-10V electricity of constant-current source
Pressure output end connects resistance R5, R6, R7, R8 respectively；Resistance R5, R6, R7, R8 connect the leakage of metal-oxide-semiconductor Q1, Q2, Q3, Q4 respectively
Pole；The source electrode of metal-oxide-semiconductor Q1, Q2, Q3, Q4 connects ground respectively；The grid of metal-oxide-semiconductor Q1, Q2, Q3, Q4 connect respectively amplifier LM1,
The output end of LM2, LM3, LM4；Amplifier LM1, LM2, the in-phase end of LM3, LM4 connect reference voltage FB respectively；Amplifier LM1,
The end of oppisite phase of LM2, LM3, LM4 connects resistance R1, R2, R3, R4 respectively；The other end of resistance R1, R2, R3, R4 connects ground respectively.
Further, described metal-oxide-semiconductor Q1, Q2, Q3, Q4 are N-type metal-oxide-semiconductor.
Further, described resistance R1, R2, R3, R4 are respectively R1, R2, R3, the R4 for dimming.
Further, described resistance R1, R2, R3, R4 are the resistance between 0.01 Ω -0.1 Ω.
Further, the resistance R5, R6, R7, R8, R9 are the resistance of 100K.
Advantage of the present utility model：
Circuit of the present utility model uses a powerful constant-current supply, drives many integrated lamp bulbs or lamp bead module
When, to a kind of circuit of wherein one or more module fault detects, after can detect wherein one or more module failures, from
The dynamic electric current for reducing power supply output, the automatic power output for reducing power drives, to ensure the lamp bead life-span, makes lamp bead from excessively electric
Stream influence and it is too fast aging.This circuit can also be directly integrated in constant-current source inside directly with supporting 1-10V dimming power sources to use
Constant current datum mark is adjusted.
In addition to objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to figure, the utility model is described in further detail.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing being further understood to of the present utility model, of the present utility model
Schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.
Fig. 1 is a kind of circuit theory diagrams of automatic identification list cluster of lamps, ornamental pearl failure of the utility model embodiment.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain this
Utility model, is not used to limit the utility model.
With reference to Fig. 1, a kind of circuit of automatic identification list cluster of lamps, ornamental pearl failure as shown in Figure 1, including amplifier LM1, LM2,
LM3, LM4, resistance R1, R2, R3, R4, R5, R6, R7, R8, metal-oxide-semiconductor Q1, Q2, Q3, Q4；The 1-10V voltage output ends of constant-current source
Resistance R5, R6, R7, R8 are connected respectively；Resistance R5, R6, R7, R8 connect the drain electrode of metal-oxide-semiconductor Q1, Q2, Q3, Q4 respectively；Metal-oxide-semiconductor
The source electrode of Q1, Q2, Q3, Q4 connects ground respectively；The grid of metal-oxide-semiconductor Q1, Q2, Q3, Q4 connects amplifier LM1, LM2, LM3, LM4 respectively
Output end；Amplifier LM1, LM2, the in-phase end of LM3, LM4 connect reference voltage FB respectively；Amplifier LM1, LM2, LM3, LM4
End of oppisite phase connects resistance R1, R2, R3, R4 respectively；The other end of resistance R1, R2, R3, R4 connects ground respectively.
Described metal-oxide-semiconductor Q1, Q2, Q3, Q4 are N-type metal-oxide-semiconductor.
Described resistance R1, R2, R3, R4 are respectively R1, R2, R3, the R4 for dimming.
Wherein R1, R2, R3, R4 need to have more the size of output current to choose, and typically take and choose between 0.1 Ω -0.01 Ω
, when need to only ensure normal work, more than FB terminal voltages, one guarantees to recognize amplifier energy for the pressure drop at resistance two ends
The normal electric current recognized in LED loops.R5, R6, R7, R8, R9 are fixed 100K.
As shown in figure 1, a LED of 4 road module compositions, electric power outputting current 4A when normal, each module about 1A
Electric current, after this electric circuit inspection to one of module failure or open circuit, can adjust automatically electric power outputting current be 3A, with
Ensure that each module is not in overload phenomenon.
The operation principle of the utility model circuit：
Wherein R1, LM1, Q1, R5 constitute current detection circuit all the way, when there is normal circuit to pass through on LED modules 1,
Certain pressure drop will be produced on R1, when voltage is more than FB, amplifier LM1 output low-voltages Q1 is closed, 1-10V dim signals
Maximum is then kept, power supply is normally exported, when LED modules 1 are opened a way, the pressure drop on R1 is 0V, now LM1 amplifiers output electricity high
Pressure, Q1 is opened, and is connected in power supply light modulation line by R5, and dim signal is pulled down into certain value, to reduce the output electricity of power supply
Stream, by the ratio of the settable current reduction of the value for adjusting R5.Other modules the like.
This circuit is mainly used in solving, when many module lamp holders use same LED power, wherein a paths of LEDs module failure, drives
Dynamic power supply can cause remaining module long term overloading with the remaining module of identical power drive, accelerate LED module group agings to damage
It is bad.Such as the LED module on 4 tunnels, per road module demand current 1A, when one of module failure, now this module is opened a way
Causing electric current cannot pass through, and must fire can be loaded on other 3 modules, raise other module power, heating aggravation, too fast damage
It is bad, circuit total current 4A during this problem, such as normal work can be effectively solved after increasing this circuit, wherein damaging all the way, Huo Zhekai
Lu Shi, by not having electric current to flow through on the module that amplifier detects open circuit or damages, now amplifier output HIGH voltage opens MOS
Pipe, drags down the dim signal of dimming power source, its output current is reduced to original 3/4, so as to ensure that electric current is not exceeded.
Circuit of the present utility model uses a powerful constant-current supply, drives many integrated lamp bulbs or lamp bead module
When, to a kind of circuit of wherein one or more module fault detects, after can detect wherein one or more module failures, from
The dynamic electric current for reducing power supply output, to ensure the lamp bead life-span, makes lamp bead too fast aging from overcurrent influence.This circuit can match somebody with somebody
Support that 1-10V dimming power sources are used, can also be directly integrated in constant-current source inside and directly constant current datum mark is adjusted.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (5)
1. a kind of circuit of automatic identification list cluster of lamps, ornamental pearl failure, it is characterised in that including amplifier LM1, LM2, LM3, LM4, resistance
R1, R2, R3, R4, R5, R6, R7, R8, metal-oxide-semiconductor Q1, Q2, Q3, Q4；The 1-10V voltage output ends of constant-current source connect resistance respectively
R5、R6、R7、R8；Resistance R5, R6, R7, R8 connect the drain electrode of metal-oxide-semiconductor Q1, Q2, Q3, Q4 respectively；Metal-oxide-semiconductor Q1, Q2, Q3, Q4's
Source electrode connects ground respectively；The grid of metal-oxide-semiconductor Q1, Q2, Q3, Q4 connects amplifier LM1, LM2, the output end of LM3, LM4 respectively；Amplifier
The in-phase end of LM1, LM2, LM3, LM4 connects reference voltage FB respectively；Amplifier LM1, LM2, the end of oppisite phase of LM3, LM4 are connected respectively
Resistance R1, R2, R3, R4；The other end of resistance R1, R2, R3, R4 connects ground respectively.
2. the circuit of automatic identification list cluster of lamps, ornamental pearl failure according to claim 1, it is characterised in that the metal-oxide-semiconductor Q1,
Q2, Q3, Q4 are N-type metal-oxide-semiconductor.
3. the circuit of automatic identification list cluster of lamps, ornamental pearl failure according to claim 1, it is characterised in that the resistance R1, R2,
R3, R4 are respectively R1, R2, R3, the R4 for dimming.
4. the circuit of automatic identification list cluster of lamps, ornamental pearl failure according to claim 1, it is characterised in that the resistance R1, R2,
R3, R4 are the resistance between 0.01 Ω -0.1 Ω.
5. the circuit of automatic identification list cluster of lamps, ornamental pearl failure according to claim 1, it is characterised in that resistance R5, the R6,
R7, R8, R9 are the resistance of 100K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621190641.9U CN206181444U (en) | 2016-10-28 | 2016-10-28 | Automatic circuit of identification form cluster of lamps, ornamental pearl trouble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621190641.9U CN206181444U (en) | 2016-10-28 | 2016-10-28 | Automatic circuit of identification form cluster of lamps, ornamental pearl trouble |
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| Publication Number | Publication Date |
|---|---|
| CN206181444U true CN206181444U (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621190641.9U Active CN206181444U (en) | 2016-10-28 | 2016-10-28 | Automatic circuit of identification form cluster of lamps, ornamental pearl trouble |
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| Country | Link |
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| CN (1) | CN206181444U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113348731A (en) * | 2018-11-28 | 2021-09-03 | 纳米格有限公司 | System and method for providing interactive modular lighting |
-
2016
- 2016-10-28 CN CN201621190641.9U patent/CN206181444U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113348731A (en) * | 2018-11-28 | 2021-09-03 | 纳米格有限公司 | System and method for providing interactive modular lighting |
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