CN104869730A - Intelligent household color-changing LED lamp control circuit and working method thereof - Google Patents
Intelligent household color-changing LED lamp control circuit and working method thereof Download PDFInfo
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- CN104869730A CN104869730A CN201510331160.9A CN201510331160A CN104869730A CN 104869730 A CN104869730 A CN 104869730A CN 201510331160 A CN201510331160 A CN 201510331160A CN 104869730 A CN104869730 A CN 104869730A
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- 239000003086 colorant Substances 0.000 claims description 36
- 230000001276 controlling effect Effects 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
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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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Abstract
The invention relates to an intelligent household color-changing LED lamp control circuit and a working method thereof, wherein the color-changing LED lamp control circuit comprises: the temperature sensor is connected with the processor module, and the processor module is suitable for controlling the tricolor LED module to adjust the color temperature of the LED lamp through the tricolor driving module according to the temperature; the invention can replace the current monochromatic household LED lighting system, creates a good living environment according to the temperature, improves the comfort level of the home, has the advantages of energy saving, long service life and the like, and has low cost and better practical value.
Description
Technical field
The present invention relates to field of LED illumination, particularly relate to a kind of intelligent domestic color-changed LED light and method of work thereof.
Background technology
In human settlement, people likes cool tone often to the hobby of light colour temperature hot day, and cold day then likes warm tones, and conventional domestic LED lamp generally adopts the light of single tone, fails harmony well with the factor such as people, environment.
Domestic automatic color-changed LED light utilizes the principle of three primary colours, by blue for reddish yellow three kinds of highlighted LED environmentally temperature carry out luminous proportional control, the light making light fixture send different-colour at different temperatures comes, thus builds harmonious human settlement.
Summary of the invention
The object of this invention is to provide a kind of color-changed LED light control circuit and method of work thereof, it achieves and regulates LED light emission color temperature according to temperature, and then builds good human settlement.
In order to solve the problems of the technologies described above, the invention provides a kind of color-changed LED light control circuit, comprise: temperature sensor, the processor module be connected with this temperature sensor, described processor module is suitable for controlling by three primary colors driver module the colour temperature that three-primary color LED module regulates LED according to temperature.
Further, described three primary colors driver module comprises: the primary colours driver element that three circuit structures are identical; Described primary colours driver element comprises: the decoder controlled by described processor module, the output of this decoder is connected with the control end of a triode respectively by some color matching resistance, and the another two ends of this triode connect corresponding primary-color LED unit in power supply and three-primary color LED module respectively; Described processor module is suitable for controlling the corresponding color matching resistance of decoder gating to regulate the base current of triode according to temperature, namely by regulating base current to realize controlling the luminosity of corresponding primary-color LED unit.
Further, in order to prevent producing disturbance current between each color matching resistance, described decoder and the diode being connected between resistance and being suitable for making corresponding base current conducting of respectively matching colors.
Another aspect, present invention also offers a kind of method of work of color-changed LED light control circuit.
Wherein, described color-changed LED light control circuit comprises: temperature sensor, the processor module be connected with this temperature sensor; And the method for work of described color-changed LED light control circuit comprises: described processor module is suitable for controlling by three primary colors driver module the colour temperature that three-primary color LED module regulates LED according to temperature.
Further, described three primary colors driver module comprises: the primary colours driver element that three circuit structures are identical; Described primary colours driver element comprises: the decoder controlled by described processor module, the output of this decoder is connected with the control end of a triode respectively by some color matching resistance, and the another two ends of this triode connect corresponding primary-color LED unit in power supply and three-primary color LED module respectively; Described processor module is suitable for controlling the corresponding color matching resistance of decoder gating to regulate the base current of triode according to temperature, namely by regulating base current to realize controlling the luminosity of corresponding primary-color LED unit.
The invention has the beneficial effects as follows, the present invention can replace current monochromatic household LED illuminator, builds good human settlement according to temperature, improves home comfort degree, and has the advantages such as energy-conservation, the life-span is long, and with low cost, has good practical value.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the theory diagram of color-changed LED light control circuit of the present invention;
Fig. 2 is the circuit theory diagrams of color-changed LED light control circuit of the present invention.
In figure, PNP type triode Q1, Q2, Q3;
Color matching resistance R1, R2, R8, R9, R11, R16, R17, R19, R24;
Diode D1, D2, D8, D9, D11, D16, D17, D19, D24.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Three primary colors are red, green, blue three kinds of primary colours, carry out colour mixture by the primary colours according to three kinds of different brightness, and the colour temperature that can realize LED regulates.
Embodiment 1
As shown in Figure 1, a kind of color-changed LED light control circuit of the present invention, comprise: temperature sensor, the processor module be connected with this temperature sensor, described processor module is suitable for controlling by three primary colors driver module the colour temperature that three-primary color LED module regulates LED according to temperature.
Further, described three primary colors driver module comprises: the primary colours driver element that three circuit structures are identical; Described primary colours driver element comprises: the decoder controlled by described processor module, the output of this decoder is connected with the control end of a triode respectively by some color matching resistance, and the another two ends of this triode connect corresponding primary-color LED unit in power supply and three-primary color LED module respectively; Described processor module is suitable for controlling the corresponding color matching resistance of decoder gating to regulate the base current of triode according to temperature, namely by regulating base current to realize controlling the luminosity of corresponding primary-color LED unit.Described processor module achieves port by decoder and expands.In Fig. 2 for the sake of clarity, resistance of matching colors only shows R1, R2, R8, R9, R11, R16, R17, R19, R24; All the other color matching resistance ellipsis replace, and diode is adopted in the same way.
Wherein, described triode can adopt positive-negative-positive or NPN type triode, and described decoder can be, but not limited to adopt 74LS138, and its 8 outputs resistance of matching colors with 8 is respectively connected, to regulate the luminosity of corresponding LED module, sending brightness elsewhere can have 8 kinds of variation patterns.Therefore, corresponding three primary colors combination, can realize altogether 512 kinds of schemes of colour.
Further, described decoder and the diode being connected between resistance and being suitable for making corresponding base current conducting of respectively matching colors.
Fig. 2 shows the circuit theory diagrams of color-changed LED light control circuit of the present invention.
In Fig. 2, triode adopts PNP type triode, and concrete is described for a primary colours driver element.The base stage of PNP type triode is connected with the anode of respective diode respectively by some color matching resistance, and the negative electrode of each diode is connected with each output of 74LS138 respectively; The emitter of PNP type triode is connected with power output end, and its collector electrode is connected with corresponding primary-color LED unit, LED chip series connection in each primary-color LED unit, and the anode of head end LED chip is connected with collector electrode, the minus earth of end LED chip.
Optionally, described temperature sensor is such as but not limited to employing DS18B20, and processor module adopts but is not limited to adopt single-chip microcomputer, such as AT89C2051.
The present invention, by temperature detection, obtains ambient temperature signal, and with the scheme of colour of these signal controlling red, green, blue three primary colors, makes it be emitted in current room temperature servant and feel that best combination light (colour temperature) comes.Concrete, in such as winter, temperature is lower, can regulate warmer colour temperature (namely colour temperature is less than 3300K); Summer temperature is higher, can regulate colder colour temperature (namely colour temperature is greater than 5000K).
Embodiment 2
On embodiment 1 basis, present invention also offers a kind of method of work of color-changed LED light control circuit.
Described color-changed LED light control circuit comprises: temperature sensor, the processor module be connected with this temperature sensor; And the method for work of described color-changed LED light control circuit comprises: described processor module is suitable for controlling by three primary colors driver module the colour temperature that three-primary color LED module regulates LED according to temperature.
Further, described three primary colors driver module comprises: the primary colours driver element that three circuit structures are identical; Described primary colours driver element comprises: the decoder controlled by described processor module, the output of this decoder is connected with the control end of a triode respectively by some color matching resistance, and the another two ends of this triode connect corresponding primary-color LED unit in power supply and three-primary color LED module respectively; Described processor module is suitable for controlling the corresponding color matching resistance of decoder gating to regulate the base current of triode according to temperature, namely by regulating base current to realize controlling the luminosity of corresponding primary-color LED unit.
Further, the light fixture being provided with this color-changed LED light control circuit can be arranged with milky lampshade, to make light more even.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. a color-changed LED light control circuit, it is characterized in that, comprise: temperature sensor, the processor module be connected with this temperature sensor, described processor module is suitable for controlling by three primary colors driver module the colour temperature that three-primary color LED module regulates LED according to temperature.
2. color-changed LED light control circuit according to claim 1, is characterized in that, described three primary colors driver module comprises: the primary colours driver element that three circuit structures are identical;
Described primary colours driver element comprises: the decoder controlled by described processor module, the output of this decoder is connected with the control end of a triode respectively by some color matching resistance, and the another two ends of this triode connect corresponding primary-color LED unit in power supply and three-primary color LED module respectively;
Described processor module is suitable for controlling the corresponding color matching resistance of decoder gating to regulate the base current of triode according to temperature, namely by regulating base current to realize controlling the luminosity of corresponding primary-color LED unit.
3. color-changed LED light control circuit according to claim 2, is characterized in that, described decoder and the diode being connected between resistance and being suitable for making corresponding base current conducting of respectively matching colors.
4. a method of work for color-changed LED light control circuit, is characterized in that,
Described color-changed LED light control circuit comprises: temperature sensor, the processor module be connected with this temperature sensor;
The method of work of described color-changed LED light control circuit comprises: described processor module is suitable for controlling by three primary colors driver module the colour temperature that three-primary color LED module regulates LED according to temperature.
5. the method for work of color-changed LED light control circuit according to claim 4, is characterized in that, described three primary colors driver module comprises: the primary colours driver element that three circuit structures are identical;
Described primary colours driver element comprises: the decoder controlled by described processor module, the output of this decoder is connected with the control end of a triode respectively by some color matching resistance, and the another two ends of this triode connect corresponding primary-color LED unit in power supply and three-primary color LED module respectively;
Described processor module is suitable for controlling the corresponding color matching resistance of decoder gating to regulate the base current of triode according to temperature, namely by regulating base current to realize controlling the luminosity of corresponding primary-color LED unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510331160.9A CN104869730A (en) | 2015-06-15 | 2015-06-15 | Intelligent household color-changing LED lamp control circuit and working method thereof |
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| CN201510331160.9A CN104869730A (en) | 2015-06-15 | 2015-06-15 | Intelligent household color-changing LED lamp control circuit and working method thereof |
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Application publication date: 20150826 |