CN205584571U - LED driving power - Google Patents
LED driving power Download PDFInfo
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- CN205584571U CN205584571U CN201620387004.4U CN201620387004U CN205584571U CN 205584571 U CN205584571 U CN 205584571U CN 201620387004 U CN201620387004 U CN 201620387004U CN 205584571 U CN205584571 U CN 205584571U
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- module
- driving power
- led driving
- led
- power
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Abstract
The utility model provides a LED driving power, including power input module, EMC module, filter module, rectifier module, voltage transformation module and the constant current and constant voltage control module that connects gradually, power input module's input termination commercial power, the output of constant current and constant voltage control module is connected with the LED lamps and lanterns, rectifier circuit with inductance of series connection and parallelly connected piezo -resistor between the voltage transformation circuit, piezo -resistor's input is connected with the output of inductance. The utility model provides a LED driving power adopts EMC module and filter module, has effectively promoted LED driving power's the anti -electromagnetic interference and the characteristic of anti harmonic, LED driving power adopts the constant current and constant voltage control module, and the effectual stability of controlling LED driving power has guaranteed that LED driving power provides invariable voltage, electric current for the LED load.
Description
Technical field
This utility model belongs to technical field of LED illumination, is specifically related to a kind of LED drive power.
Background technology
LED as a kind of novel lighting system, have life-span length, consume energy low, volume is little, high brightness, controls the advantages such as flexible, belongs to typical green illumination light source, its application prospect is more and more extensive.But the sensitivity due to the non-linear of LED characteristic He temperature, it is necessary to constant-current source be its power supply.
At present, when selecting and design LED drive power, need from the standpoint of high reliability, high efficiency, High Power Factor, harmonic current, cost, surge protection, service life, adaptation etc..But, on market, LED drive power has that structure is complicated, processing technique is loaded down with trivial details, high in cost of production shortcoming mostly, and the voltage x current of LED drive power is non-constant, reduces the service life of LED.
Summary of the invention
To be solved in the utility model is that existing LED drive power is inefficient, the technical problem of harmonic distortion, it is provided that a kind of high efficiency, High Power Factor, the LED drive power of anti-harmonic wave.
In order to solve technical problem of the present utility model, this utility model is achieved through the following technical solutions: LED drive power, including the Power Entry Module being sequentially connected with, EMC module, filtration module, rectification module, voltage transformation module and constant current constant voltage control module；The outfan of described constant current constant voltage control module is connected with LED lamp；Connecting between described rectification circuit with described voltage conversion circuit an inductance and a varistor in parallel, the input of varistor is connected with the outfan of inductance；Wherein, external electromagnetic interference signal is suppressed by described EMC module；Described filtration module is filtered, and improves power supply anti-harmonic wave interference performance；The alternating current that rectification circuit inputs power supply is converted to unidirectional current.
Preferably, described constant current constant voltage control module uses TL431 integrated circuit.
Compared with prior art, this utility model obtains and provides the benefit that:
A kind of LED drive power disclosed in this utility model, have that simple in construction, production technology be simple, low cost and the feature of length in service life, use EMC module and filtration module, it is effectively improved electromagnetism interference and the characteristic of anti-harmonic wave of LED drive power, improves the reliability of power supply further；LED drive power uses constant current constant voltage control module, is effectively controlled the stability of LED drive power, it is ensured that LED drive power provides constant voltage, electric current to LED load；Between rectification circuit and voltage conversion circuit, add inductance, suppress owing to difference mode signal is transmitted to the harmful effect that causes on electrical network.Also add varistor simultaneously, improve the rejection ability of power supply surge to external world.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Detailed description of the invention
Below in conjunction with the accompanying drawings, embodiment is described in detail.
Seeing accompanying drawing 1, LED drive power, including the Power Entry Module being sequentially connected with, EMC module, filtration module, rectification module, voltage transformation module and constant current constant voltage control module；The outfan of described constant current constant voltage control module is connected with LED lamp；Connecting between described rectification circuit with described voltage conversion circuit an inductance and a varistor in parallel, the input of varistor is connected with the outfan of inductance；Wherein, external electromagnetic interference signal is suppressed by described EMC module；Described filtration module is filtered, and improves power supply anti-harmonic wave interference performance；The alternating current that rectification circuit inputs power supply is converted to unidirectional current.
Further, described constant current constant voltage control module uses TL431 integrated circuit.
Utility model works principle: after the Power Entry Module of LED drive power connects civil power, external electromagnetic interference signal is suppressed by EMC module, filtration module is filtered, by rectification module, mains electricity is transformed into unidirectional current, unidirectional current carries out blood pressure lowering by voltage transformation module, voltage, the constant output of electric current is controlled, it is provided that to LED lamp finally by constant current constant voltage control module.
Listed above is only one of specific embodiment of the utility model.Obviously, this utility model is not limited to above example, it is also possible to have many similar reshapings.All deformation that those of ordinary skill in the art can directly derive from this utility model disclosure or associate, are all considered as this utility model scope of the claimed.
Claims (2)
1.LED drives power supply, it is characterised in that: include Power Entry Module, EMC module, filtration module, rectification module, voltage transformation module and the constant current constant voltage control module being sequentially connected with；The input termination civil power of described Power Entry Module, the outfan of described constant current constant voltage control module is connected with LED lamp；Connecting between described rectification circuit with described voltage conversion circuit an inductance and a varistor in parallel, the input of varistor is connected with the outfan of inductance.
2. LED drive power as claimed in claim 1, it is characterised in that: described constant current constant voltage control module uses TL431 integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620387004.4U CN205584571U (en) | 2016-05-04 | 2016-05-04 | LED driving power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620387004.4U CN205584571U (en) | 2016-05-04 | 2016-05-04 | LED driving power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205584571U true CN205584571U (en) | 2016-09-14 |
Family
ID=56859349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620387004.4U Expired - Fee Related CN205584571U (en) | 2016-05-04 | 2016-05-04 | LED driving power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205584571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580393A (en) * | 2017-09-25 | 2018-01-12 | 珠海格力电器股份有限公司 | LED drive power and light fixture |
-
2016
- 2016-05-04 CN CN201620387004.4U patent/CN205584571U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580393A (en) * | 2017-09-25 | 2018-01-12 | 珠海格力电器股份有限公司 | LED drive power and light fixture |
| CN107580393B (en) * | 2017-09-25 | 2023-11-07 | 国创能源互联网创新中心(广东)有限公司 | LED driving power supply and lamp |
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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 |
Granted publication date: 20160914 Termination date: 20210504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |