CN202371656U - Alternating-current (AC) small-power light-emitting diode (LED) luminous plate integrated by driving circuit and luminous source - Google Patents
Alternating-current (AC) small-power light-emitting diode (LED) luminous plate integrated by driving circuit and luminous source Download PDFInfo
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- CN202371656U CN202371656U CN2011205252867U CN201120525286U CN202371656U CN 202371656 U CN202371656 U CN 202371656U CN 2011205252867 U CN2011205252867 U CN 2011205252867U CN 201120525286 U CN201120525286 U CN 201120525286U CN 202371656 U CN202371656 U CN 202371656U
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
本实用新型涉及一种驱动电路与发光源一体化的AC小功率LED发光板，属于LED发光板技术领域。本实用新型包括整流桥式电路、直流恒流源、若干个发光二极管和发光板，所述整流桥电路的两个电源输入端与AC220V或AC110V连接，所述整流桥电路的正极与所述直流恒流源的一端连接，所述直流恒流源的另一端与贴片串联的若干个发光二极管的一端连接，所述贴片串联的若干个发光二极管设置在所述发光板上。本实用新型具有故障率低、寿命长，电源和LED寿命相当等特点。
The utility model relates to an AC low-power LED light-emitting board integrated with a driving circuit and a light-emitting source, belonging to the technical field of LED light-emitting boards. The utility model comprises a rectifier bridge circuit, a DC constant current source, several light-emitting diodes and a light-emitting panel. The two power input ends of the rectifier bridge circuit are connected to AC220V or AC110V, and the positive pole of the rectifier bridge circuit is connected to the DC One end of the constant current source is connected, and the other end of the DC constant current source is connected to one end of several light-emitting diodes connected in series with the patch, and the several light-emitting diodes connected in series with the patch are arranged on the light-emitting board. The utility model has the characteristics of low failure rate, long service life, comparable service life of power supply and LED, and the like.
Description
Technical field
The utility model relates to a kind of drive circuit and the incorporate AC low-power LED of light emitting source luminous plaque, belongs to LED luminous plaque technical field.
Background technology
Existing LED lamp is made up of LED paster, fin (shell), resin shell, several parts of power circuit usually; Because LED is the operating on low voltage device of a necessary constant pressure and flow; And existing LED always drive with the AC/DC conversion again the constant pressure and constant diffluence to drive the low-voltage LED diode promptly be at the external connection drive circuit of LED luminous plaque; Make driver be suitable for voltage wide (80V-260V); Constant current accuracy is high, but also has complicated circuit simultaneously, and element is various, the shortcoming big, that volume is big, cost is high, fault rate is high takes up space.
Summary of the invention
The purpose of the utility model provides a kind of simplified driving circuit, reduces production costs, and improves the drive circuit and the incorporate AC low-power LED of the light emitting source luminous plaque of LED luminance.
The purpose of the utility model realizes through following technical scheme:
The incorporate AC low-power LED of a kind of drive circuit and light emitting source luminous plaque; Comprise rectifier circuit, dc constant current power supply, several light emitting diodes and luminous plaque; Two power inputs of said rectifier circuit are connected with AC220V or AC110V; The positive pole of said rectifier circuit is connected with an end of said dc constant current power supply; The other end of said dc constant current power supply is connected with an end of several light emitting diodes of paster series connection, and several light emitting diodes of said paster series connection are arranged on the said luminous plaque.
Can find out by the above-mentioned technical scheme that provides; The utility model is with N low power 3528 light emitting diodes or the series connection of other diode pasters; Become 100 hertz direct current sinusoidal wave through bridge full-wave rectifier the power supply of AC220V or AC110V, through the current drives LED of a dc constant voltage constant current of a two ends dc constant current power supply output.At present the LED bulb all is that drive circuit through complicacy turns to low-tension current with the AC high voltage circulation; And the driving power of the utility model directly by the ac high-voltage rectification must be through two ends the direct driving LED of constant-current source constant current; This constant-flow driver is the two ends semiconductor element; Fault rate is low, the life-span is long, so power supply is suitable with the LED life-span, has overcome LED because the bottleneck that power supply brings.
Description of drawings
Fig. 1 is the structural representation that the specific embodiment of the utility model provides.
The specific embodiment
This specific embodiment provides a kind of drive circuit and the incorporate AC low-power LED of light emitting source luminous plaque; As shown in Figure 1; Comprise rectifying bridge type circuit, dc constant current power supply D1, several light emitting diodes and luminous plaque (L1-Ln); Two power inputs of said rectifier circuit are connected with AC220V or AC110V; The positive pole of said rectifier circuit is connected with an end of said dc constant current power supply, and the other end of said dc constant current power supply is connected with an end of several light emitting diodes of paster series connection, and several light emitting diodes of said paster series connection are arranged on the said luminous plaque.
The exportable electric current of selecting of the constant-current source of the utility model is 10mA-30mA, can regulate electric current according to actual needs.Dc constant current power supply that also can parallelly connected a plurality of same electrical flow valuves makes the output current multiplication.Also can be with the double luminous power of LED of the semiconductor LED parallel connection of organizing more.The power-efficient and the power factor (PF) of the utility model are equal>90%.
In order to reduce the luminous plaque operating temperature, the heat of light emitting diode derived distributes, it is on the luminous plaque (pcb board) that the utility model adopts aluminium base, with rectifier bridge pile constant-current source, the LED paster is welded on the luminous plaque and connects by design circuit.Work below the rated current of electric current of each group LED and be advisable with LED.The LED caloric value is low like this, light efficiency is high, and the heat radiation cost is low.
The line design of aluminium base is identical with general individual layer pcb board design; Concrete design is as follows: 3528,3014,3020 etc. should use the shape pressure drop to be 2.75V at little electric current; Distribute constant voltage 200V; Die every group with 200V/2.75V ≈ 74, drive its power with the 14mA constant-current source and be about 3W, the 16mA driving power is 3.5W.The 18mA driving power is 4W.If two groups of parallel connection design powers will be respectively 6W, 7W, 8W.Satisfied the LED lamp design demand of 3W-8W.
The luminous plaque that this specific embodiment provides is formed by several light emitting diode series connection; Its operating voltage is N*VLED; This kind mode makes luminous plaque become the ability on-line operation in the device of high pressure conditions; Each light emitting diode need not to make one's options to the VF of light emitting diode because series connection will directly be assigned to operating voltage VF separately from high pressure, because if its VF of parallelly connected light emitting diode requirement is basic identical; Otherwise the electric current that the light emitting diode of low VF value will distribute higherly, it is uneven to cause each led current to distribute.
The above; Be merely the preferable specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain of claims.
Claims (2)
1. drive circuit and the incorporate AC low-power LED of light emitting source luminous plaque; It is characterized in that; Comprise rectifier circuit, dc constant current power supply, several light emitting diodes and luminous plaque; Two power inputs of said rectifier circuit are connected with AC220V or AC110V; The positive pole of said rectifier circuit is connected with an end of said dc constant current power supply, and the other end of said dc constant current power supply is connected with an end of several light emitting diodes of paster series connection, and several light emitting diodes of said paster series connection are arranged on the said luminous plaque.
2. drive circuit according to claim 1 and the incorporate AC low-power LED of light emitting source luminous plaque is characterized in that, said rectifier circuit is used for becoming 100 hertz direct current sinusoidal wave through bridge full-wave rectifier the power supply of AC220V or AC110V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205252867U CN202371656U (en) | 2011-12-15 | 2011-12-15 | Alternating-current (AC) small-power light-emitting diode (LED) luminous plate integrated by driving circuit and luminous source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205252867U CN202371656U (en) | 2011-12-15 | 2011-12-15 | Alternating-current (AC) small-power light-emitting diode (LED) luminous plate integrated by driving circuit and luminous source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371656U true CN202371656U (en) | 2012-08-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205252867U Expired - Fee Related CN202371656U (en) | 2011-12-15 | 2011-12-15 | Alternating-current (AC) small-power light-emitting diode (LED) luminous plate integrated by driving circuit and luminous source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371656U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982795A (en) * | 2014-05-13 | 2014-08-13 | 山东明华光电科技有限公司 | Small-power LED (light emitting diode) bulb lamp |
| CN104832801A (en) * | 2015-03-11 | 2015-08-12 | 江西众光照明科技有限公司 | Shapable type white-light AC LED light source and manufacturing method thereof |
-
2011
- 2011-12-15 CN CN2011205252867U patent/CN202371656U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982795A (en) * | 2014-05-13 | 2014-08-13 | 山东明华光电科技有限公司 | Small-power LED (light emitting diode) bulb lamp |
| CN104832801A (en) * | 2015-03-11 | 2015-08-12 | 江西众光照明科技有限公司 | Shapable type white-light AC LED light source and manufacturing method thereof |
| CN104832801B (en) * | 2015-03-11 | 2018-10-09 | 江西众光照明科技有限公司 | A kind of plastic type white light AC LED light sources and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20121215 |