CN201178500Y - Electric power for LED illumination - Google Patents
Electric power for LED illumination Download PDFInfo
- Publication number
- CN201178500Y CN201178500Y CNU2008200119491U CN200820011949U CN201178500Y CN 201178500 Y CN201178500 Y CN 201178500Y CN U2008200119491 U CNU2008200119491 U CN U2008200119491U CN 200820011949 U CN200820011949 U CN 200820011949U CN 201178500 Y CN201178500 Y CN 201178500Y
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- China
- Prior art keywords
- circuit
- output
- led
- current
- power supply
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a power supply for LED illumination, which comprises an overcurrent protection circuit, a current limiting circuit connected with the output of the overcurrent protection circuit, a rectification circuit connected with the output of the current limiting circuit, an anti-impact circuit connected with the output of the rectification circuit, and a voltage stabilizing circuit connected with the output of the anti-impact circuit. Compared with the prior art, the power supply is remarkably characterized by providing a high-voltage constant current as the illumination power to an LED, and has the advantages of simple structure, low cost and high loads. The power supply can achieve main illumination of the LED and can save power by about 10% in comparison with a compact fluorescent lamp (CFL). The power supply also has the advantages of low temperature, long service life (100 thousands hours), no electromagnetic radiation, etc., and can reduce greenhouse effect and facilitate environmental protection.
Description
Technical field:
The utility model relates to a kind of LED power supply, especially a kind of simple in structure, with low cost, high pressure (LED electric consumption on lighting source of 50～110V) constant currents.
Background technology:
At present, LED (light-emitting diode) is so that its volume is little, in light weight, energy consumption is low, long advantages such as (reaching 100,000 hours) of safe and reliable, life-span is in the extensive use of a plurality of fields, as is applied to the demonstration lamp of stop lamp, Landscape Lamp, decorative lamp, background light, indicator light, alarm lamp, traffic lights and the display screen etc. of automobile.Existing LED is that (3～36V) constant voltages, basic structure form have following two kinds: a kind of is the voltage stabilizing circuit that is provided with transforming circuit and joins with it to low pressure, and the unnecessary energy of meeting elimination causes energy waste in the process of transformation, voltage stabilizing with power supply usually; Another kind then is a high frequency switch power, can produce multiple harmonic and electrical network is polluted.In addition, no matter be the LED low pressure constant voltage source of which kind of form, all exist complex structure, shortcoming such as volume is big, cost is high and load is low, to such an extent as to existing LED can't be applied to the illumination such as places such as family, market, hotel, office buildings, causing the illumination energy consumption is about 15% of total energy consumption.
Summary of the invention:
The utility model is can't be in the technical problem of lighting field widespread usage in order to solve existing in prior technology LED, and a kind of LED electric consumption on lighting source of simple in structure, with low cost, high voltage and constant current is provided.
Technical solution of the present utility model is: a kind of LED electric consumption on lighting source; it is characterized in that: be provided with current foldback circuit; the output and the current-limiting circuit of current foldback circuit are joined; the output and the rectification circuit of current-limiting circuit join; the output of rectification circuit and shock resistance circuit join, and the output and the voltage stabilizing circuit of shock resistance circuit join.
Be connected to the load signal feedback circuit with described voltage stabilizing circuit.
The utility model is compared with prior art, maximum characteristics are to be that LED provides mains lighting supply with the high voltage and constant current, and are simple in structure, cost is low, load is high, can the illumination of LED realization body, under the prerequisite of equal brightness, than compact fluorescent lamp (CFL) economize on electricity about 10%.Simultaneously the utility model have also that temperature is low, advantages such as life-span long (100,000 hours) and electromagnetic-radiation-free, can reduce greenhouse effect, be beneficial to environmental protection.
Description of drawings:
Fig. 1 is the theory diagram of the utility model embodiment 1.
Fig. 2 is the theory diagram of the utility model embodiment 2.
Embodiment:
Below in conjunction with description of drawings embodiment of the present utility model.
Embodiment 1 is as shown in Figure 1:
Be provided with current foldback circuit; the output and the current-limiting circuit of current foldback circuit are joined, and the output and the rectification circuit of current-limiting circuit join, and the output of rectification circuit and shock resistance circuit join; the output and the voltage stabilizing circuit of shock resistance circuit join, and each circuit all can adopt prior art.
During use; the input and the mains supply (alternating current 220V) of current foldback circuit are joined; through current-limiting circuit, rectification circuit, shock resistance circuit, voltage stabilizing circuit, final output voltage is that 50～110V, electric current are the direct current of 18～22mA, for LED provides mains lighting supply.
Embodiment 2 is as shown in Figure 2:
Basic circuit is with embodiment 1; promptly be provided with current foldback circuit; the output and the current-limiting circuit of current foldback circuit are joined; the output and the rectification circuit of current-limiting circuit join; the output of rectification circuit and shock resistance circuit join; the output and the voltage stabilizing circuit of shock resistance circuit join; unlike the prior art be to be connected to the load signal feedback circuit with described voltage stabilizing circuit; be about to load and voltage stabilizing circuit and form the closed loop feedback circuit; so that load signal is fed back to voltage stabilizing circuit; adjust output current in real time, make current maxima be no more than 25mA.
Claims (2)
1. LED electric consumption on lighting source; it is characterized in that: be provided with current foldback circuit, the output and the current-limiting circuit of current foldback circuit are joined, and the output and the rectification circuit of current-limiting circuit join; the output of rectification circuit and shock resistance circuit join, and the output and the voltage stabilizing circuit of shock resistance circuit join.
2. LED electric consumption on lighting according to claim 1 source is characterized in that: be connected to the load signal feedback circuit with described voltage stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200119491U CN201178500Y (en) | 2008-04-07 | 2008-04-07 | Electric power for LED illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200119491U CN201178500Y (en) | 2008-04-07 | 2008-04-07 | Electric power for LED illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201178500Y true CN201178500Y (en) | 2009-01-07 |
Family
ID=40218522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200119491U Expired - Fee Related CN201178500Y (en) | 2008-04-07 | 2008-04-07 | Electric power for LED illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201178500Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521971A (en) * | 2009-03-31 | 2009-09-02 | 上海小糸车灯有限公司 | Linear constant current drive mode of LED signal lamp for automobile |
-
2008
- 2008-04-07 CN CNU2008200119491U patent/CN201178500Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521971A (en) * | 2009-03-31 | 2009-09-02 | 上海小糸车灯有限公司 | Linear constant current drive mode of LED signal lamp for automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WAN QUE Effective date: 20130627 Owner name: PENG ZHIGUO Free format text: FORMER OWNER: ZHONGTONG SCI. + TECH DEV. CO., LTD., DALIAN Effective date: 20130627 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130627 Address after: 116000, No. 33, northeast Third Street, Dalian Economic Development Zone, Liaoning Patentee after: Peng Zhiguo Patentee after: Wan Que Address before: 116000, room 219, 2212 the Yellow River Road, Xigang District, Liaoning, Dalian, China Patentee before: Zhongtong Sci. & Tech Dev. Co., Ltd., Dalian |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20150407 |
|
| EXPY | Termination of patent right or utility model |