CN104994619A - LED driving circuit with high light effect - Google Patents
LED driving circuit with high light effect Download PDFInfo
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- CN104994619A CN104994619A CN201510314470.XA CN201510314470A CN104994619A CN 104994619 A CN104994619 A CN 104994619A CN 201510314470 A CN201510314470 A CN 201510314470A CN 104994619 A CN104994619 A CN 104994619A
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Abstract
An LED driving circuit with a high light effect is characterized in that the driving power source of the LED driving circuit is a non-electrolytic constant voltage source which outputs a constant current 1, a constant current 2, a constant current 3 and a constant current 4, and the core part of the LED driving circuit comprises three LED lamp strings DW1, DW2 and DW3 composed of white LEDs with color temperature from 4900K to 5100K, a lamp string DR composed of red LEDs, and resistors Rf1, Rf2, Rf3 and Rf4 connected in parallel, wherein the constant current 1 drives the lamp string DW1, the constant current 2 drives the lamp string DW2, the constant current 3 drives the lamp string DW3, and the constant current 4 drives the lamp string DR. By manually controlling the color rendering index of the LEDs, the light effect of the LEDs is improved, and an optimal light mixing effect is achieved.
Description
Technical field
The present invention relates to LED semiconducting solid lighting technical field, be specifically related to a kind of LED drive circuit improving the specular removal of LED color rendering index.
Background technology
Now, LED will reach specular removal as light source of new generation in commercial lighting, high color rendering index (CRI) is more difficult.Light efficiency and color rendering index are two parameters in opposition to each other, and when light efficiency improves, color rendering index has just got off, and color rendering index is improve, and light efficiency has got off again.So, have people to make up by reduction colour temperature, colour temperature be selected in about 3000K, but, our eyes feel it is the most comfortable for sunlight, and the colour temperature of sunlight is white light, when selecting about 5000K colour temperature, color is partially more yellowish, be the colour temperature that eyes feel the most comfortable, the light of 5000K ~ 6000K colour temperature is white light, and it is very sufficient that we understand perceived brightness, and about 3000K colour temperature we visually can feel relatively dark, long-time use can feel that eyes are easily tired.
In the performance parameter of existing light fixture commercially, have unit for electrical property parameters and optical property parameter two kinds, in optical property parameter, light efficiency reflects the luminous efficiency of light fixture, and colour temperature is the yardstick representing that light source is photochromic, is the index representing that light source light spectrum quality is the most general simultaneously.Color rendering index is used to a kind of parameter of accurate description color rendering properties of light source, represents with Ra.The color rendering Ra=100 (namely any object is under the irradiation of sunlight, and this object has the most real color or texture) of luminous element (sunlight).Generally good LED colour developing can reach 85 ~ 90, and conventional white light LEDs only has about 70.When color rendering index is less than 70, the radiation response of light is poor, and develop the color higher, effect is better.Different brackets and application places have different requirements to color rendering index.Road, warehouse, large workshop, colour developing is less than 60, weak effect; Hall, corridor, colour developing 60 ~ 69, effect is general; Factory, school, supermarket, colour developing 70 ~ 79, effect is passable; Office, meeting room, hotel, market, hospital, colour developing 80 ~ 89, respond well; Natural science pipe, printing and dyeing industry, laboratory, clothes, jewelry and fruit market, colour developing 90 ~ 100, best results.
Therefore, for the above-mentioned defect existed in currently available technology, be necessary to study, to provide a kind of LED drive circuit of specular removal, solve the defect existed in prior art.
Summary of the invention
The present invention is directed above-mentioned prior art Problems existing, propose a kind of LED drive circuit of specular removal, by the effect of LED drive circuit, change the ratio of white light LEDs and red-light LED, reach manual control LED color rendering index, enter the object that you improve the light efficiency of LED.
Object of the present invention realizes by following technical proposal:
A kind of LED drive circuit of specular removal, it is characterized in that, the driving power of the drive circuit of described LED is without electrolysis constant pressure source, described without electrolysis constant pressure source output constant current 1, constant current 2, constant current 3 and constant current 4, the core of described LED drive circuit comprises that to adopt the white light LEDs of 4900K to 5100K colour temperature to form three paths of LEDs lamp strings be DW1, DW2 and DW3, it is DR that red-light LED forms a street lamp string, and resistance Rf1, Rf2, Rf3 and Rf4 of being connected in parallel; Wherein, described constant current 1 drives described DW1 lamp string, and described constant current 2 drives described DW2 lamp string, and described constant current 3 drives described DW3 lamp string, and described constant current 4 drives described DR lamp string.
Further, the input power of the drive circuit of described LED is for exchanging, and described input power first inputs to without transferring in circuit after electrolysis constant pressure source again;
Further, the resistance size of described resistance Rf1, Rf2, Rf3 and Rf4 affects the operating current of described lamp string DW1, DW2, DW3 and DR respectively;
Further, described white LED lamp string DW1, DW2 and DW3 are the large power white light LED lamp pearl of different-colour;
Further, described red LED lamp string DR is powerful red LED lamp pearl.
Beneficial effect of the present invention is, by the color rendering index of control LED that can be artificial, improves the light efficiency of LED, reaches best light mixing effect.
Illustrate that the invention will be further described with embodiment below by accompanying drawing simultaneously.
Accompanying drawing explanation
Fig. 1: a kind of LED drive circuit figure of specular removal;
Fig. 2: the ratio of white LED lamp pearl and red LED lamp pearl;
In Fig. 1, DW1, DW2, DW3 are white LED lamp string, and DR is red LED lamp string, and Rf1, Rf2, Rf3 and Rf4 are the resistance that resistance is different; 1. being red LED lamp pearl in Fig. 2, is 2. white LED lamp pearl, is 3. aluminium base.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.Meanwhile, these describe just exemplary, and are not limiting the scope of the invention.
As shown in Figure 1, the present invention adopts the white light LEDs of about 5000K to form three paths of LEDs lamp strings, adopts red-light LED to form a cluster of lamps, ornamental string.Drive DW1 lamp string by constant current 1, regulate Rf1 to adjust DW1 electric current, make DW1 lamp string work in desirable drive current; Constant current 2 drives DW2 lamp string, regulates Rf2 to adjust DW2 electric current, makes DW2 lamp string work in desirable drive current; Constant current 3 drives DW3 lamp string, regulates Rf3 to adjust DW3 electric current, makes DW3 lamp string work in desirable drive current; Constant current 4 drives DR lamp string, regulates Rf4 to adjust DW4 electric current, makes DW4 lamp string work in the drive current of red-light LED needs; DW1 ~ DW3 can use the large power white light LED lamp pearl of not colour temperature, and the resistance value of adjustment Rf1 ~ Rf3, meets the requirement of DW1 ~ DW3 lamp string drive current separately, realize the adjustment of LED colour temperature.Adopt without the constant voltage source of high-voltage electrolytic capacitor scheme, prolongation light fixture useful life.
As shown in Figure 2, what describe is the ratio example of white light LEDs and red LED lamp pearl, 1. be red LED lamp pearl, 2. be large power white light LED lamp pearl, 3. go up with being made in one piece of aluminium base, then before LED light-emitting area, add a light mixing lens, carry out optical treatment, remove mixed light hot spot, reach best light mixing effect.Change the mixed light LED quantity of DR lamp string, namely change the ratio of white light LEDs and red-light LED, control color rendering index that can be artificial.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (5)
1. the LED drive circuit of a specular removal, it is characterized in that, the driving power of the drive circuit of described LED is without electrolysis constant pressure source, described without electrolysis constant pressure source output constant current 1, constant current 2, constant current 3 and constant current 4, the core of described LED drive circuit comprises that to adopt the white light LEDs of 4900K to 5100K colour temperature to form three paths of LEDs lamp strings be DW1, DW2 and DW3, it is DR that red-light LED forms a street lamp string, and resistance Rf1, Rf2, Rf3 and Rf4 of being connected in parallel; Wherein, described constant current 1 drives described DW1 lamp string, and described constant current 2 drives described DW2 lamp string, and described constant current 3 drives described DW3 lamp string, and described constant current 4 drives described DR lamp string.
2. the LED drive circuit of a kind of specular removal according to claim 1, is characterized in that, the input power of the drive circuit of described LED is for exchanging, and described input power first inputs to and transfers in circuit without after electrolysis constant pressure source again.
3. the LED drive circuit of a kind of specular removal according to claim 1, it is characterized in that, the resistance size of described resistance Rf1, Rf2, Rf3 and Rf4 affects the operating current of described lamp string DW1, DW2, DW3 and DR respectively.
4. the LED drive circuit of a kind of specular removal according to claim 1, is characterized in that, described white LED lamp string DW1, DW2 and DW3 are the large power white light LED lamp pearl of different-colour.
5. the LED drive circuit of a kind of specular removal according to claim 1, is characterized in that, described red LED lamp string DR is powerful red LED lamp pearl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314470.XA CN104994619A (en) | 2015-06-10 | 2015-06-10 | LED driving circuit with high light effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314470.XA CN104994619A (en) | 2015-06-10 | 2015-06-10 | LED driving circuit with high light effect |
Publications (1)
| Publication Number | Publication Date |
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| CN104994619A true CN104994619A (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510314470.XA Pending CN104994619A (en) | 2015-06-10 | 2015-06-10 | LED driving circuit with high light effect |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040246742A1 (en) * | 2003-06-09 | 2004-12-09 | Moritex Corporation | Illumination device |
| CN201403232Y (en) * | 2009-04-02 | 2010-02-10 | 杭州海康蓝博电器有限公司 | Color temperature adjustable LED illumination lamp with RGB light source |
| CN102278621A (en) * | 2011-04-22 | 2011-12-14 | 深圳市瑞丰光电子股份有限公司 | White light emitting diode (LED) module with adjustable color temperature, illumination equipment and manufacturing method |
| JP2012252966A (en) * | 2011-06-06 | 2012-12-20 | Brintz Technologie Co Ltd | Led light source luminance adjustment device, luminance adjustment method and led lighting apparatus |
| CN103118470A (en) * | 2013-02-21 | 2013-05-22 | 四川长虹光电有限公司 | LED parallel circuit with equalized branch current |
| CN203757501U (en) * | 2014-01-24 | 2014-08-06 | 张晓峰 | LED (Light Emitting Diode) lighting lamp |
-
2015
- 2015-06-10 CN CN201510314470.XA patent/CN104994619A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040246742A1 (en) * | 2003-06-09 | 2004-12-09 | Moritex Corporation | Illumination device |
| CN201403232Y (en) * | 2009-04-02 | 2010-02-10 | 杭州海康蓝博电器有限公司 | Color temperature adjustable LED illumination lamp with RGB light source |
| CN102278621A (en) * | 2011-04-22 | 2011-12-14 | 深圳市瑞丰光电子股份有限公司 | White light emitting diode (LED) module with adjustable color temperature, illumination equipment and manufacturing method |
| JP2012252966A (en) * | 2011-06-06 | 2012-12-20 | Brintz Technologie Co Ltd | Led light source luminance adjustment device, luminance adjustment method and led lighting apparatus |
| CN103118470A (en) * | 2013-02-21 | 2013-05-22 | 四川长虹光电有限公司 | LED parallel circuit with equalized branch current |
| CN203757501U (en) * | 2014-01-24 | 2014-08-06 | 张晓峰 | LED (Light Emitting Diode) lighting lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Sen Inventor after: Pan Chen Inventor before: Wang Zhixing Inventor before: Wang Sen Inventor before: Wang Ziqiang |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171030 Address after: No. 118 Street Xijiu road in Yixing city of Jiangsu Province, Wuxi City, 214204 Applicant after: Jiangsu rich Photoelectric Technology Co., Ltd. Address before: 214200 Jiangsu city of Wuxi province Yixing Zhangzhu Town Industrial Zone Yulong Road Applicant before: Jing Zheng lighting Co., Ltd |
|
| TA01 | Transfer of patent application right | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |