CN109587884A - A kind of adjusting circuit and its working method for LED light colour temperature and brightness regulation - Google Patents
A kind of adjusting circuit and its working method for LED light colour temperature and brightness regulation Download PDFInfo
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- CN109587884A CN109587884A CN201811572900.8A CN201811572900A CN109587884A CN 109587884 A CN109587884 A CN 109587884A CN 201811572900 A CN201811572900 A CN 201811572900A CN 109587884 A CN109587884 A CN 109587884A
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- waveform
- coupling unit
- led
- colour temperature
- led light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention is a kind of adjusting circuit and its working method for LED light colour temperature and brightness regulation, includes light modulator, further includes having waveform generator and waveform coupling unit；The output end of light modulator and waveform generator is connected with the input terminal of waveform coupling unit respectively, simultaneously, the output end of waveform coupling unit is connected with the LED drive circuit being preset with, wherein, LED drive circuit is sent to after the waveform for waveform and the waveform generator output that light modulator exports being coupled by waveform coupling unit；By the way that light modulator and waveform generator are adjusted respectively, change the waveform that light modulator and waveform generator respectively export, the i.e. changeable voltage waveform for being input to LED drive circuit, it exports to change LED drive circuit to the current waveform of LED light group, the final brightness for realizing LED light group and the change of colour temperature are adjusted, simple and ingenious structure, it is swift to operate.
Description
Technical field
The present invention relates to LED technology fields, more particularly, to a kind of adjusting circuit for LED light colour temperature and brightness regulation
And its working method.
Background technique
LED light source has many advantages, such as the low energy consumption, high life, durable, has increasingly replaced traditional incandescent lamp and energy-saving lamp, at
For lighting source of new generation.Colour temperature refers to that light source issues the color characteristics of light, is to show that light source shines with a kind of comparative approach
Substantially color, but different illuminating effects can be presented in the LED lamp of different color temperature values and brightness, such as white light is relatively positive
The light of formula, warm white (i.e. yellow) is more warm, and blue light is then partially mysterious and peaceful；In order to realize the brightness to same LED light source
With the adjusting of colour temperature, circuit structure used by the prior art is all extremely complex, not only increases the difficulty of the manufacturing, for
For family, it is also relatively complicated for using.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of simple and ingenious structure, using swift to operate
The easy adjusting circuit for LED light colour temperature and brightness regulation.
To achieve the above object, a kind of scheme provided by the invention are as follows: adjusting electricity for LED light colour temperature and brightness regulation
Road includes light modulator, further includes having waveform generator and waveform coupling unit；The output of the light modulator and waveform generator
End be connected respectively with the input terminal of the waveform coupling unit, meanwhile, the output end of the waveform coupling unit be preset with
LED drive circuit be connected, wherein the waveform and the waveform exported the light modulator by the waveform coupling unit
The waveform of generator output is sent to the LED drive circuit after being coupled.
Further, the waveform coupling unit is coupling transformer.
The working method of the adjusting circuit for LED light colour temperature and brightness regulation, comprising the following steps:
Step S1. light modulator exports dimming waveform to waveform coupling unit, meanwhile, waveform generator output toning waveform to waveform
Coupling unit；
Step S2. waveform coupling unit will mix colours waveform coupling modulation to dimming waveform, and modulated by what is obtained after coupling modulation
Waveform signal processed is sent to LED drive circuit.
It further, further include being adjusted after thering is step S3.LED driving circuit to carry out demodulation analysis to brewed waveform signal
Light and toning control signal simultaneously control the brightness of LED light group and colour temperature according to light modulation and toning control signal.
Compared with the prior art, the beneficial effect of the present invention is that by the way that light modulator and waveform generator are adjusted respectively,
Change the waveform that light modulator and waveform generator respectively export, i.e., the changeable voltage waveform for being input to LED drive circuit, thus
Changing LED drive circuit to export to the current waveform of LED light group, the final brightness for realizing LED light group and the change of colour temperature are adjusted,
Simple and ingenious structure, it is swift to operate.
Detailed description of the invention
Fig. 1 is frame principle figure of the invention.
Fig. 2 is flow chart of the invention.
Wherein, 1- light modulator, 2- waveform generator, 3- waveform coupling unit, 4-LED driving circuit, 5-LED lamp group.
Specific embodiment
The present invention is further explained in the light of specific embodiments:
Referring to shown in attached drawing 1 and attached drawing 2, the present embodiment is a kind of adjusting circuit for LED light colour temperature and brightness regulation, including
There is the light modulator 1 being connected with the AC power source being preset with, which is conventional controllable silicon dimmer 1, is adjusted by adjusting
The angle of flow of light device 1, which can be realized, carries out copped wave to the sine voltage of input, and the voltage input by copped wave processing is to default
In some LED drive circuits 4, then electric current is exported by LED drive circuit 4, the LED light group 5 being preset with is driven and controlled
System, wherein the angle of flow by adjusting light modulator 1 can realize that different copped wave is handled, and be input to LED drive circuit to change
4 voltage, the final adjusting for changing the output of LED drive circuit 4 and realizing 5 brightness of LED light group to the electric current of LED light group 5.
In the present embodiment, further include have for the waveform generator 2(of the color temperature adjustment waveform generator 2 with by presetting
Some power supply power supplies) and waveform coupling unit 3；Specific connection structure is as follows: the output end of light modulator 1 and waveform generator 2
It is connected respectively with the input terminal of the waveform coupling unit 3, meanwhile, the output end and LED drive circuit of the waveform coupling unit 3
4 input terminal is connected；Through this structure, waveform coupling unit 3 is defeated by 1 output waveform of light modulator and waveform generator 2
Waveform out is sent to LED drive circuit 4 after being coupled, by 4 pairs of the LED drive circuit waveforms after overcoupling analyzed from
And the control information for being dimmed and being mixed colours, the electric current of corresponding waveform is exported, corresponding 5 brightness of LED light group and colour temperature are obtained,
Wherein, by adjusting the waveform that the output waveform of waveform generator 2 is the changeable voltage for being input to LED drive circuit 4, in turn
The waveform for changing the output electric current of LED drive circuit 4, finally realizes the change of 5 colour temperature of LED light group, that is, realizes LED light group 5
The adjusting of colour temperature；By the way that light modulator 1 and waveform generator 2 are adjusted respectively, brightness and the color of LED light group 5 can be realized
The adjusting of temperature, simple and ingenious structure.
In the present embodiment, waveform coupling unit 3 is coupling transformer.
In the present embodiment, the working method and process of the adjusting circuit are as follows:
Step S1. light modulator 1 exports dimming waveform to waveform coupling unit 3, meanwhile, the output toning of waveform generator 2 waveform is extremely
Waveform coupling unit 3；
Step S2. waveform coupling unit 3, which will mix colours on waveform coupling modulation to dimming waveform, (is equivalent to dimming waveform as load
Wave, by toning waveform modulated on carrier wave), and the brewed waveform signal obtained after coupling modulation is sent to LED driving electricity
Road 4；
Step S3.LED driving circuit 4 is dimmed and is mixed colours control signal simultaneously after carrying out demodulation analysis to brewed waveform signal
The electric current of corresponding waveform is exported to LED light group 5, to obtain corresponding brightness and color according to light modulation and toning control signal
Temperature；
By adjusting the waveform of the output of light modulator 1 and waveform generator 2, the brightness for adjusting LED light group 5 and color can be corresponded to
Temperature, it is simple and fast.
In addition, it should be noted that, the specific embodiments described in this specification, each section title etc. can not
Together, the equivalent or simple change that all structure, feature and principles described according to the invention patent design are done, is included in the present invention
In the protection scope of patent.Those skilled in the art can do described specific embodiment various each
The mode that the modify or supplement or adopt of sample is similar substitutes, and without departing from structure of the invention or surmounts the claims
Defined range, is within the scope of protection of the invention.
Claims (4)
1. a kind of adjusting circuit for LED light colour temperature and brightness regulation includes light modulator (1), it is characterised in that: further include
There are waveform generator (2) and waveform coupling unit (3)；The output end of the light modulator (1) and waveform generator (2) respectively with institute
The input terminal for stating waveform coupling unit (3) is connected, meanwhile, the output end of the waveform coupling unit (3) and the LED being preset with
Driving circuit (4) is connected, wherein the waveform exported the light modulator (1) by the waveform coupling unit (3) with it is described
The waveform of waveform generator (2) output is sent to the LED drive circuit (4) after being coupled.
2. a kind of adjusting circuit for LED light colour temperature and brightness regulation according to claim 1, it is characterised in that: institute
Stating waveform coupling unit (3) is coupling transformer.
3. a kind of work of the adjusting circuit for LED light colour temperature and brightness regulation as described in any one of claim 1 and 2
Method, it is characterised in that: the following steps are included:
Step S1. light modulator (1) exports dimming waveform to waveform coupling unit (3), meanwhile, waveform generator (2) output toning
Waveform is to waveform coupling unit (3)；
Step S2. waveform coupling unit (3) will obtain toning waveform coupling modulation to dimming waveform after coupling modulation
Modulation waveform signal is sent to LED drive circuit (4).
4. a kind of working method of adjusting circuit for LED light colour temperature and brightness regulation according to claim 3, special
Sign is: further include have step S3.LED driving circuit (4) to brewed waveform signal carry out demodulation analysis after obtain light modulation and
Toning control signal is simultaneously controlled according to the brightness and colour temperature of light modulation and toning control signal LED light group (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811572900.8A CN109587884A (en) | 2018-12-21 | 2018-12-21 | A kind of adjusting circuit and its working method for LED light colour temperature and brightness regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811572900.8A CN109587884A (en) | 2018-12-21 | 2018-12-21 | A kind of adjusting circuit and its working method for LED light colour temperature and brightness regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109587884A true CN109587884A (en) | 2019-04-05 |
Family
ID=65930700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811572900.8A Pending CN109587884A (en) | 2018-12-21 | 2018-12-21 | A kind of adjusting circuit and its working method for LED light colour temperature and brightness regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109587884A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6229271B1 (en) * | 2000-02-24 | 2001-05-08 | Osram Sylvania Inc. | Low distortion line dimmer and dimming ballast |
| CN201839477U (en) * | 2010-05-19 | 2011-05-18 | 成都芯源系统有限公司 | LED drive circuit and lamp |
| US20120319605A1 (en) * | 2011-06-14 | 2012-12-20 | SAMSUNG ELECTRO-MECHANICS CO., LTD./University of Seoul Industry Cooperation Foundation | Illumination driving apparatus |
| CN102917497A (en) * | 2012-10-18 | 2013-02-06 | 杭州意博高科电器有限公司 | LED (Light-emitting Diode) dual-dimming control system based on WIFI (Wireless Fidelity) network |
| US20140125234A1 (en) * | 2012-11-02 | 2014-05-08 | Laurence P. Sadwick | Dimmer with Motion and Light Sensing |
| CN104837276A (en) * | 2015-05-21 | 2015-08-12 | 横店集团得邦照明股份有限公司 | LED wireless control system capable of being compatible with phase cut dimming and control method |
| CN206674252U (en) * | 2017-03-30 | 2017-11-24 | 佛山市华永泰光电科技有限公司 | It is a kind of can adjusting brightness of LED lamps and color simultaneously circuit |
-
2018
- 2018-12-21 CN CN201811572900.8A patent/CN109587884A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6229271B1 (en) * | 2000-02-24 | 2001-05-08 | Osram Sylvania Inc. | Low distortion line dimmer and dimming ballast |
| CN201839477U (en) * | 2010-05-19 | 2011-05-18 | 成都芯源系统有限公司 | LED drive circuit and lamp |
| US20120319605A1 (en) * | 2011-06-14 | 2012-12-20 | SAMSUNG ELECTRO-MECHANICS CO., LTD./University of Seoul Industry Cooperation Foundation | Illumination driving apparatus |
| CN102917497A (en) * | 2012-10-18 | 2013-02-06 | 杭州意博高科电器有限公司 | LED (Light-emitting Diode) dual-dimming control system based on WIFI (Wireless Fidelity) network |
| US20140125234A1 (en) * | 2012-11-02 | 2014-05-08 | Laurence P. Sadwick | Dimmer with Motion and Light Sensing |
| CN104837276A (en) * | 2015-05-21 | 2015-08-12 | 横店集团得邦照明股份有限公司 | LED wireless control system capable of being compatible with phase cut dimming and control method |
| CN206674252U (en) * | 2017-03-30 | 2017-11-24 | 佛山市华永泰光电科技有限公司 | It is a kind of can adjusting brightness of LED lamps and color simultaneously circuit |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |
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| RJ01 | Rejection of invention patent application after publication |