CN104507200A - LED light-dimming and color temperature adjusting circuit - Google Patents
LED light-dimming and color temperature adjusting circuit Download PDFInfo
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- CN104507200A CN104507200A CN201410664708.7A CN201410664708A CN104507200A CN 104507200 A CN104507200 A CN 104507200A CN 201410664708 A CN201410664708 A CN 201410664708A CN 104507200 A CN104507200 A CN 104507200A
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- light modulation
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 15
- 239000010703 silicon Substances 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims description 32
- 239000003381 stabilizer Substances 0.000 claims description 23
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011324 bead Substances 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007363 regulatory process Effects 0.000 description 1
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention discloses an LED light-dimming and color temperature adjusting circuit, comprising a silicon controlled light dimmer, a bridge rectifier circuit, a first branch and a second branch connected in parallel with the first branch, wherein the first and third nodes of the bridge rectifier circuit are both connected with the silicon controlled light dimmer; two ends of the first branch are respectively connected with the second and forth nodes of the bridge rectifier circuit; the first branch is successively connected with a first voltage regulator tube, a first resistor and a first LED string light in series; the second branch is successively connected with a second voltage regulator tube, a second resistor and a second LED string light in series; the voltage regulation voltage of the first voltage regulator tube is lower than that of the second voltage regulator tube; the resistance value of the first resistor is the same as that of the second resistor; the first LED string light has several warm color temperature lamp beads connected in series; and the second LED string light has several cold color temperature lamp beads connected in series. The LED light-dimming and color temperature adjusting circuit can simply and efficiently achieve the light dimming and color temperature adjusting effect.
Description
Technical field
The present invention relates to LED technology, specifically relate to a kind of LED light modulation color-temperature regulating circuit.
Background technology
Light modulation toning is carried out to LED light source, while can providing lighting for user, is also conducive to energy-conserving and environment-protective.LED light modulation product divides two classes on the market at present, one is controllable silicon light modulation, by controllable silicon dimmer, item is cut to the just profound ripple of alternating current and change input voltage change, LED changes by detecting AC value the electric current outputted in LED lamp bead, and then change the luminous flux of LED output, therefore whole lamp can lighten secretly, reaches dimming effect.Although this controllable silicon light modulation scheme circuit is simple, manufacture body, controllable silicon light modulation scheme also exists poor compatibility equally, cannot realize the problem of color-temperature regulating function.
For the problems referred to above, prior art discloses a kind of RGB full-color intelligent dimming color-temperature regulating scheme, this light modulation color-temperature regulating mode fixes output voltage by Switching Power Supply, inner utilization Digital Circuit Control is (as single-chip microcomputer, radio-frequency transmissions receiver module), software programming is utilized to pre-set color and electric current corresponding relation, by external control (as wireless, bluetooth, infrared remote control mode such as grade) realize controlling the current ratio of LED multi-path, reach the different brightness regulation of different colours, thus realize full-color light modulation color-temperature regulating.
But there is circuit complexity, processing and debugging is complicated, manufacturing cost is high shortcoming in above-mentioned this RGB full-color intelligent dimming color-temperature regulating scheme, can't large-scale promotion use at present.
Summary of the invention
For the deficiency of above-mentioned controllable silicon light modulation scheme and RGB full-color intelligent dimming color-temperature regulating scheme, the object of the present invention is to provide a kind of LED light modulation color-temperature regulating circuit, thus simply realize the light modulation color-temperature regulating effect of LED efficiently.
In order to achieve the above object, present invention employs following technical scheme:
A kind of LED light modulation color-temperature regulating circuit, has such feature, comprising: controllable silicon dimmer, bridge rectifier, the first branch road, and with the second branch road of the first branch circuit parallel connection; Wherein, the first node of bridge rectifier is all connected with controllable silicon dimmer with the 3rd node; The two ends of the first branch road are connected respectively to Section Point and the 4th node of bridge rectifier; First branch road is in series with the first voltage-stabiliser tube successively, the first resistance, and the first LED string; Second branch road is in series with the second voltage-stabiliser tube successively, the second resistance, and the second LED string; The voltage of voltage regulation of the first voltage-stabiliser tube is less than the voltage of voltage regulation with the second voltage-stabiliser tube; First resistance is identical with the resistance value of the second resistance; First LED string has the warm color temperature lamp pearl of some series connection, and the second LED string has the cold color temperature lamp pearl of some series connection.
Further, in LED light modulation color-temperature regulating circuit provided by the invention, such feature can also be had: the voltage of voltage regulation of the first voltage-stabiliser tube is 50 volts; The voltage of voltage regulation of the second voltage-stabiliser tube is 70 volts.
Further, in LED light modulation color-temperature regulating circuit provided by the invention, such feature can also be had: the resistance value of the first resistance and the second resistance is 100 ohm.
Further, in LED light modulation color-temperature regulating circuit provided by the invention, such feature can also be had: the operating voltage of the first LED string and the second LED string is 150 volts.
Further, in LED light modulation color-temperature regulating circuit provided by the invention, such feature can also be had: the absolute temperature of warm color temperature lamp pearl is 2200 Kelvins.
Further, in LED light modulation color-temperature regulating circuit provided by the invention, such feature can also be had: the absolute temperature of cold color temperature lamp pearl is 6500 Kelvins.
The good effect that the present invention has on the basis of the above is:
In LED light modulation color-temperature regulating circuit provided by the invention, adopt voltage of voltage regulation to cut with scissors the first low voltage-stabiliser tube and make when direct current effective value voltage is lower first LED start of string luminous and show warm colour temperature.Adopting the second higher voltage-stabiliser tube of voltage of voltage regulation to be progressively elevated at direct current effective value voltage makes the second LED start of string luminescence show cool colour temperature, LED carries out mixed light through optics such as cell-shells to warm colour and cool colour, and increase along with the continuation of direct current effective value voltage raises the high color temperature luminous flux be then mixed into, the whole lamp color temperature that LED is showed raises gradually.Meanwhile, along with direct current effective value voltage raises, flow through the electric current also corresponding rising of the first branch road and the second branch road, LED is brightened, thus simply realize light modulation color-temperature regulating effect efficiently.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of LED light modulation color-temperature regulating circuit in embodiments of the invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reach object and effect is easy to understand, following examples are specifically addressed LED light modulation color-temperature regulating circuit provided by the invention by reference to the accompanying drawings.
As shown in Figure 1, the LED light modulation color-temperature regulating circuit that provides of the present embodiment.Comprise: controllable silicon dimmer 1, bridge rectifier 2, the first branch road 3, and second branch road 4 in parallel with the first branch road 3;
Wherein, the first node 21 of bridge rectifier 2 is all connected with controllable silicon dimmer 1 with the 3rd node 23.Controllable silicon dimmer 1 for interchange just profound ripple cut, the angle of cutting away larger then AC value voltage is lower, thus make through bridge rectifier Bridge 2 heap arrangement after direct current effective value voltage lower.
The two ends of the first branch road 3 are connected respectively to Section Point 22 and the 4th node 24 of bridge rectifier 2.
First branch road 3 is in series with the first voltage-stabiliser tube 31, first resistance 32 successively, and the first LED string 33, and wherein, the first LED string 33 has the warm color temperature lamp pearl of some series connection, and in the present embodiment, the absolute temperature of this warm color temperature lamp pearl is 2200 Kelvins.
Second branch road 4 is in series with the second voltage-stabiliser tube 41, second resistance 42 successively, and the second LED string 43, and wherein, the second LED string 43 has the cold color temperature lamp pearl of some series connection, and in the present embodiment, the absolute temperature of cold color temperature lamp pearl is 6500 Kelvins.
First LED string 33 and the second LED string 43 are the LED string of forward voltage drop, and the operating voltage of the first LED string 33 and the second LED string 43 is 150 volts.
In the present embodiment, the voltage of voltage regulation of the first voltage-stabiliser tube 31 is less than the voltage of voltage regulation with the second voltage-stabiliser tube 41. and concrete, the voltage of voltage regulation of the first voltage-stabiliser tube 31 is 50 volts; The voltage of voltage regulation of the second voltage-stabiliser tube 41 is 70 volts.
In addition, in the present embodiment, the first resistance 32 is identical with the resistance value of the second resistance 42.Concrete, the resistance value of the first resistance 32 and the second resistance 42 is 100 ohm.
Below, the light modulation color-temperature regulating process of the LED light modulation color-temperature regulating circuit that the present embodiment provides is described:
The LED light modulation color-temperature regulating circuit that the present embodiment provides in the course of the work, by controllable silicon dimmer 1 incoming transport power supply, AC value voltage from low side gradually to high-end change, direct current effective value voltage after bridge rectifier Bridge 2 heap also changes thereupon, when direct current effective value voltage is 200V, first voltage-stabiliser tube 31 conducting, the first LED string 33 starts luminescence and shows the warm colour temperature of 2200 Kelvins.
When direct current effective value voltage is increased to 210V, the electric current flowing through the first LED string 33 is (210-150-50) V/100 Ω=0.1A through formulae discovery.When direct current effective value voltage is elevated to 220V, the second LED string 43 starts luminescence and shows the cool colour temperature of 6500 Kelvins.
When direct current effective value voltage continues to be elevated to 250V, the electric current of the first LED string 33 is (250-150-50) V/100 Ω=0.5A, the electric current of the second LED string 43 is (250-150-70) V/100 Ω=0.3A, namely the current value flowing through the first branch road 3 and the current value ratio flowing through the second branch road 4 are 5:3, so, now the warm colour of LED and cool colour light mixng proportion are 5:3.When direct current effective value voltage continues to be elevated to 280V, the electric current of the first LED string 33 is (280-150-50) V/100 Ω=0.8A, the electric current of the second LED string 43 is (280-150-70) V/100 Ω=0.6A, namely the current value flowing through the first branch road 3 and the current value ratio flowing through the second branch road 4 are 4:3, so, now the warm colour of LED and cool colour light mixng proportion are 4:3.
Along with the rising of direct current effective value voltage can be found out: when direct current effective value voltage raises, cool colour flux ratio raises, after mixed light, the colour temperature of LED raises, and, the electric current flowing through the first branch road 3 and the second branch road 4 raises along with direct current effective value voltage and raises, LED is brightened, thus realizes the effect of light modulation.
In the LED light modulation color-temperature regulating circuit that the present embodiment provides, adopt voltage of voltage regulation to cut with scissors the first low voltage-stabiliser tube and make when direct current effective value voltage is lower first LED start of string luminous and show warm colour temperature.Adopting the second higher voltage-stabiliser tube of voltage of voltage regulation to be progressively elevated at direct current effective value voltage makes the second LED start of string luminescence show cool colour temperature, LED carries out mixed light through optics such as cell-shells to warm colour and cool colour, and increase along with the continuation of direct current effective value voltage raises the high color temperature luminous flux be then mixed into, the whole lamp color temperature that LED is showed raises gradually.Meanwhile, along with direct current effective value voltage raises, flow through the electric current also corresponding rising of the first branch road and the second branch road, LED is brightened, thus simply realize light modulation color-temperature regulating effect efficiently.
Certainly LED light modulation color-temperature regulating circuit involved in the present invention is not merely defined in the structure in the present embodiment, any equivalent modifications of carrying out the present invention and substituting also all in category of the present invention.
Claims (6)
1. a LED light modulation color-temperature regulating circuit, is characterized in that, comprising: controllable silicon dimmer, bridge rectifier, the first branch road, and with the second branch road of described first branch circuit parallel connection;
Wherein, the first node of described bridge rectifier is all connected with described controllable silicon dimmer with the 3rd node;
The two ends of described first branch road are connected respectively to Section Point and the 4th node of described bridge rectifier;
Described first branch road is in series with the first voltage-stabiliser tube successively, the first resistance, and the first LED string;
Described second branch road is in series with the second voltage-stabiliser tube successively, the second resistance, and the second LED string;
The voltage of voltage regulation of described first voltage-stabiliser tube is less than the voltage of voltage regulation with described second voltage-stabiliser tube;
Described first resistance is identical with the resistance value of described second resistance;
Described first LED string has the warm color temperature lamp pearl of some series connection, and described second LED string has the cold color temperature lamp pearl of some series connection.
2. LED light modulation color-temperature regulating circuit according to claim 1, is characterized in that:
The voltage of voltage regulation of described first voltage-stabiliser tube is 50 volts;
The voltage of voltage regulation of described second voltage-stabiliser tube is 70 volts.
3. LED light modulation color-temperature regulating circuit according to claim 1, is characterized in that:
The resistance value of described first resistance and described second resistance is 100 ohm.
4. LED light modulation color-temperature regulating circuit according to claim 1, is characterized in that:
The operating voltage of described first LED string and described second LED string is 150 volts.
5. LED light modulation color-temperature regulating circuit according to claim 1, is characterized in that:
The absolute temperature of described warm color temperature lamp pearl is 2200 Kelvins.
6. LED light modulation color-temperature regulating circuit according to claim 1, is characterized in that:
The absolute temperature of described cold color temperature lamp pearl is 6500 Kelvins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664708.7A CN104507200B (en) | 2014-11-19 | 2014-11-19 | LED light-dimming and color temperature adjusting circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664708.7A CN104507200B (en) | 2014-11-19 | 2014-11-19 | LED light-dimming and color temperature adjusting circuit |
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| CN104507200A true CN104507200A (en) | 2015-04-08 |
| CN104507200B CN104507200B (en) | 2017-02-08 |
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| CN201410664708.7A Active CN104507200B (en) | 2014-11-19 | 2014-11-19 | LED light-dimming and color temperature adjusting circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106332369A (en) * | 2016-10-10 | 2017-01-11 | 深圳迪亚士照明科技有限公司 | Dimming and color temperature regulating circuit for LED bar |
| WO2023226955A1 (en) * | 2022-05-25 | 2023-11-30 | 嘉兴山蒲照明电器有限公司 | Emergency lighting device |
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| CN101968179A (en) * | 2010-11-16 | 2011-02-09 | 山东华盈电力能源发展有限公司 | LED lighting lamp capable of adjusting color temperature |
| WO2011134980A2 (en) * | 2010-04-27 | 2011-11-03 | Tridonic Jennersdorf Gmbh | Circuit arrangement for operating leds |
| US8164273B1 (en) * | 2007-04-27 | 2012-04-24 | Harrington Richard H | Light emitting diode circuits for general lighting |
| CN102573243A (en) * | 2012-02-27 | 2012-07-11 | 杭州鸿德照明科技有限公司 | Light-emitting diode (LED) driving circuit for controlled silicon regulating circuit |
| CN102917486A (en) * | 2011-08-02 | 2013-02-06 | 北京同步科技有限公司 | LED lamp adjustable in luminance and color temperature |
| CN203399370U (en) * | 2013-08-08 | 2014-01-15 | 晨怡（浙江）电子实业有限公司 | Light-adjustable LED lamp capable of naturally changing color temperature |
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2014
- 2014-11-19 CN CN201410664708.7A patent/CN104507200B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8164273B1 (en) * | 2007-04-27 | 2012-04-24 | Harrington Richard H | Light emitting diode circuits for general lighting |
| WO2011134980A2 (en) * | 2010-04-27 | 2011-11-03 | Tridonic Jennersdorf Gmbh | Circuit arrangement for operating leds |
| CN101968179A (en) * | 2010-11-16 | 2011-02-09 | 山东华盈电力能源发展有限公司 | LED lighting lamp capable of adjusting color temperature |
| CN102917486A (en) * | 2011-08-02 | 2013-02-06 | 北京同步科技有限公司 | LED lamp adjustable in luminance and color temperature |
| CN102573243A (en) * | 2012-02-27 | 2012-07-11 | 杭州鸿德照明科技有限公司 | Light-emitting diode (LED) driving circuit for controlled silicon regulating circuit |
| CN203399370U (en) * | 2013-08-08 | 2014-01-15 | 晨怡（浙江）电子实业有限公司 | Light-adjustable LED lamp capable of naturally changing color temperature |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106332369A (en) * | 2016-10-10 | 2017-01-11 | 深圳迪亚士照明科技有限公司 | Dimming and color temperature regulating circuit for LED bar |
| WO2018068485A1 (en) * | 2016-10-10 | 2018-04-19 | 深圳迪亚士照明科技有限公司 | Light adjustment and colour temperature adjustment circuit for led light bar |
| WO2023226955A1 (en) * | 2022-05-25 | 2023-11-30 | 嘉兴山蒲照明电器有限公司 | Emergency lighting device |
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| CN104507200B (en) | 2017-02-08 |
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Address after: Room 1534, No. 498 GuoShoujing Road, Pudong Software Park, Pudong New Area, Shanghai, 201203 Patentee after: Kotya lighting (Shanghai) Co.,Ltd. Address before: 201203 Shanghai Guo Shou Jing Road, Zhangjiang High Tech Park of Pudong New Area No. 498 Pudong Software Park Building 1, room 1534 Patentee before: Shanghai Dunge Electronic Trading Co.,Ltd. |
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Effective date of registration: 20220315 Address after: 518000 605 bixinyuan, Futian District, Shenzhen, Guangdong Patentee after: Wu Guangmin Address before: Room 1534, building 1, Pudong Software Park, 498 GuoShouJing Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201203 Patentee before: Kotya lighting (Shanghai) Co.,Ltd. |
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