CN102917494B - Two-dimensional color temperature regulating device of LED lamps - Google Patents
Two-dimensional color temperature regulating device of LED lamps Download PDFInfo
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- CN102917494B CN102917494B CN201210381904.4A CN201210381904A CN102917494B CN 102917494 B CN102917494 B CN 102917494B CN 201210381904 A CN201210381904 A CN 201210381904A CN 102917494 B CN102917494 B CN 102917494B
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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
A two-dimensional color temperature regulating device of LED lamps comprises a power source. An output end of the power source is connected with a pulse signal generating portion, a voltage regulating portion is connected to the periphery of the power source, an output end of the pulse signal generating portion is connected with a duty cycle regulating and outputting portion, the pulse signal generating portion generates 600Hz oscillation by the aid of a 555 circuit and assorted peripheral components, sawtooth waves with 8V upper limits and 4V lower limits are outputted under the action of the oscillation, and are outputted to an operational amplifier and a regulator to be compared with output voltage of the operational amplifier and output voltage of the regulator, signals with variable duty cycles are outputted, and a group of cold-color light sources and a group of warm-color light sources are respectively controlled by voltage waveforms and inversion of the voltage waveforms, so that the color temperature can be regulated, the voltage regulating portion necessarily regulates a direct-current 24V power source which supplies power for the LED lamps by the aid of a voltage stabilizer 317 and a peripheral circuit of the voltage stabilizer 317, and the intensity of lamplight can be changed under the effect of change of a voltage value of the direct-current 24V power source. The two-dimensional color temperature regulating device has the advantages that the intensity of the lamplight can be flexibly changed, and the color temperature can be flexibly regulated.
Description
Technical field
The present invention relates to a kind of LED lamp adjusting device, particularly a kind of bidimensional LED light fixture color-temperature regulating device.
Background technology
LED light fixture has the features such as energy-saving and environmental protection, safety, is becoming the main product of lighting field.Existing LED light fixture regulates the aspects such as light power, colour temperature also to have some inconvenience, is mainly that regulative mode is dumb.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the invention is to propose a kind of bidimensional LED light fixture color-temperature regulating device, can control voltage amplitude and the voltage make-and-break time of input LED lamps and candles, there is the power of flexible change light, the feature of adjusting colour temperature.
To achieve these goals, technical scheme of the present invention is achieved in that
A kind of bidimensional LED light fixture color-temperature regulating device, comprise 555 timers, the control voltage end of 555 timers is by capacitor C 3 ground connection, discharge end joins by resistance R 8 and high-triggering end and low triggering end, discharge end connects power supply by resistance R 7, thereby formation pulse signal circuit, the low triggering end of 555 timers connects inverting input one and the in-phase input end two of amplifier LF353, the in-phase input end one of amplifier LF353 meets slide rheostat RP2 and carries out dividing potential drop and inverting input two, a low triggering end for termination 555 timers and one end of resistance R 1 of slide rheostat RP2, the other end of slide rheostat RP2 is by resistance R 4 ground connection, another termination power of resistance R 1, the output one of amplifier LF353 connects the grid of N-channel MOS pipe Q1, the drain electrode of N-channel MOS pipe Q1 connects the negative pole of one group of load LED lamp, the source ground of N-channel MOS pipe Q1, the output two of amplifier LF353 connects the grid of N-channel MOS pipe Q2, the drain electrode of N-channel MOS pipe Q2 connects the negative pole of another group load LED lamp, the source ground of N-channel MOS pipe Q2, installation's power source carries out current limliting decompression with 24V direct current through resistance R 12 and diode D1 electric current, connect afterwards the input of circuit of three-terminal voltage-stabilizing integrated 7805, circuit of three-terminal voltage-stabilizing integrated 7805 stable output 12V voltages, also comprise voltage-regulation part, 24V direct current access pressurizer LM317 carries out voltage-regulation, the output of pressurizer LM317 connects the positive pole of two groups of load LED lamps.
Circuit of three-terminal voltage-stabilizing integrated 7805 of the present invention connects 24V direct current and has formed power unit, and 555 circuit and supporting peripheral component form pulse signal genration part, produces the concussion of 600Hz.Pressurizer LM317 and peripheral circuit thereof form voltage-regulation part, to supplying with the DC power supply 24V of LED lamp, carry out necessary adjusting.LF353 and two N-channel MOS pipes form duty cycle adjustment and output.
Because the present invention uses by the negate of voltage waveform and waveform, control respectively one group of cool colour light source and one group of warm colour light source, can control voltage amplitude and the voltage make-and-break time of input LED lamps and candles, there is the power of flexible change light, the feature of adjusting colour temperature.
Accompanying drawing explanation
Accompanying drawing is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and operation principle are described in further detail.
Referring to accompanying drawing, a bidimensional LED light fixture color-temperature regulating device, comprises power unit, and power unit output is connected to pulse signal genration part, power unit periphery is connected to voltage-regulation part, and pulse signal genration part output is connected to duty cycle adjustment and output.
Power unit carries out current limliting decompression with 24V through resistance R 12 and diode D1 electric current, connects afterwards 7812 module inputs, 7812 module stable output 12V voltages, and through capacitor C in parallel 1 and C4 filtering.
Pulse signal genration is partly realized with 555 circuit, and the control voltage end of 555 timers is by capacitor C 3 ground connection, and discharge end joins by resistance R 8 and high-triggering end and low triggering end, and discharge end connects power supply by resistance R 7, thereby forms pulse signal circuit.This part produces the concussion of 600Hz, concussion output upper limit 8V, under be limited to 4V sawtooth waveforms.
Empty is the low triggering end of 555 timers to be connect to inverting input one and the in-phase input end two of amplifier LF353 than adjusting and output, the in-phase input end one of amplifier LF353 meets slide rheostat RP2 and carries out dividing potential drop and inverting input two, a low triggering end for termination 555 timers and one end of resistance R 1 of slide rheostat RP2, the other end of slide rheostat RP2 is by resistance R 4 ground connection, another termination power of resistance R 1, the output one of amplifier LF353 connects power supply by resistance R 9, output two connects power supply by resistance R 10, the output one of amplifier LF353 connects the grid of N-channel MOS pipe Q1, the drain electrode of N-channel MOS pipe Q1 connects the negative pole of one group of load LED lamp, the source ground of N-channel MOS pipe Q1, the output two of amplifier LF353 connects the grid of N-channel MOS pipe Q2, the drain electrode of N-channel MOS pipe Q2 connects the negative pole of another group load LED lamp, the source ground of N-channel MOS pipe Q2.In this part, sawtooth waveforms is exported to amplifier and regulator output voltage comparison, the signal of output variable duty ratio.
Voltage-regulation is partly used pressurizer LM317, the input termination 24V direct current of pressurizer LM317, and by capacitor C 1 ground connection filtering, adjustable side is by variable resistor RP1 ground connection, adjustable side is one end of connecting resistance R21 and the positive pole of polar capacitor C12 also, the anode of another terminating diode D11 of resistance R 21, the negative electrode of diode D11 connects the input of pressurizer LM317, the minus earth of polar capacitor C12, positive pole connects the anode of diode D12, the negative electrode of polar capacitor C12 connects the output of LM317, the positive pole of the output termination polar capacitor C13 of pressurizer LM317, the minus earth of polar capacitor C13, the positive pole of two groups of load LED lamps of output termination of pressurizer LM317.Utilize this part, to supplying with the DC power supply 24V of LED lamp, carry out necessary adjusting, the variation of its magnitude of voltage (in prescribed limit) changes the power of light fixture.
Operation principle of the present invention is:
Pulse signal genration is partly used 555 circuit and supporting peripheral component, produce the concussion of 600Hz, concussion output upper limit 8V, under be limited to 4V sawtooth waveforms, sawtooth waveforms is exported to amplifier and regulator output voltage comparison, the signal of output variable duty ratio, by the negate of voltage waveform and waveform, control respectively one group of cool colour light source and one group of warm colour light source, thereby can regulate colour temperature, voltage-regulation partly uses 317 and peripheral circuit, to supplying with the DC power supply 24V of LED lamp, carry out necessary adjusting, the variation of its magnitude of voltage can change the power of light.
Claims (1)
1. a bidimensional LED light fixture color-temperature regulating device, comprise 555 timers, it is characterized in that, the control voltage end of 555 timers is by capacitor C 3 ground connection, discharge end joins by resistance R 8 and high-triggering end and low triggering end, discharge end connects power supply by resistance R 7, thereby formation pulse signal circuit, the low triggering end of 555 timers connects inverting input one and the in-phase input end two of amplifier LF353, the in-phase input end one of amplifier LF353 is connected with inverting input two and the slide plate end that simultaneously meets slide rheostat RP2 carries out dividing potential drop, resistance wire one low triggering end of termination 555 timers and one end of resistance R 1 of slide rheostat RP2, the resistance wire other end of slide rheostat RP2 is by resistance R 4 ground connection, another termination power of resistance R 1, the output one of amplifier LF353 connects the grid of N-channel MOS pipe Q1, the drain electrode of N-channel MOS pipe Q1 connects the negative pole of one group of load LED lamp, the source ground of N-channel MOS pipe Q1, the output two of amplifier LF353 connects the grid of N-channel MOS pipe Q2, the drain electrode of N-channel MOS pipe Q2 connects the negative pole of another group load LED lamp, the source ground of N-channel MOS pipe Q2, installation's power source carries out current limliting decompression with 24V direct current through resistance R 12 and diode D1 electric current, connect afterwards circuit of three-terminal voltage-stabilizing integrated 7805 module inputs, circuit of three-terminal voltage-stabilizing integrated 7805 stable output 12V voltages, also comprise voltage-regulation part, 24V direct current access pressurizer LM317 carries out voltage-regulation, the output of pressurizer LM317 connects the positive pole of two groups of load LED lamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381904.4A CN102917494B (en) | 2012-09-29 | 2012-09-29 | Two-dimensional color temperature regulating device of LED lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381904.4A CN102917494B (en) | 2012-09-29 | 2012-09-29 | Two-dimensional color temperature regulating device of LED lamps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102917494A CN102917494A (en) | 2013-02-06 |
| CN102917494B true CN102917494B (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210381904.4A Expired - Fee Related CN102917494B (en) | 2012-09-29 | 2012-09-29 | Two-dimensional color temperature regulating device of LED lamps |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104010420B (en) * | 2014-06-06 | 2016-06-22 | 上海晶丰明源半导体有限公司 | Adjustable color temperature module, the LED drive circuit of adjustable color temperature and system |
| CN107682969B (en) * | 2017-10-27 | 2020-01-10 | 深圳市银河风云网络系统股份有限公司 | Dimming method and system |
| CN110638260A (en) * | 2019-10-17 | 2020-01-03 | 上海市长宁区妇幼保健院 | Modular intelligence-developing fence for children |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293886A (en) * | 1999-01-21 | 2001-05-02 | 卢时烈 | Illumination lamp having brightness and color control |
| CN201332536Y (en) * | 2009-01-16 | 2009-10-21 | 彭江义 | Intelligent dimming controlling electronic ballast |
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2012
- 2012-09-29 CN CN201210381904.4A patent/CN102917494B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293886A (en) * | 1999-01-21 | 2001-05-02 | 卢时烈 | Illumination lamp having brightness and color control |
| CN201332536Y (en) * | 2009-01-16 | 2009-10-21 | 彭江义 | Intelligent dimming controlling electronic ballast |
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| CN102917494A (en) | 2013-02-06 |
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