CN203896560U - LED illumination control circuit used for realizing light and color simultaneous adjustment by silicon controlled rectifier light modulator - Google Patents
LED illumination control circuit used for realizing light and color simultaneous adjustment by silicon controlled rectifier light modulator Download PDFInfo
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- CN203896560U CN203896560U CN201420287224.0U CN201420287224U CN203896560U CN 203896560 U CN203896560 U CN 203896560U CN 201420287224 U CN201420287224 U CN 201420287224U CN 203896560 U CN203896560 U CN 203896560U
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 32
- 239000010703 silicon Substances 0.000 title claims abstract description 32
- 238000005286 illumination Methods 0.000 title claims abstract description 18
- 230000000694 effects Effects 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 13
- 230000003044 adaptive effect Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 description 11
- 238000013461 design Methods 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000003292 diminished effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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 utility model discloses an LED illumination control circuit used for realizing light and color simultaneous adjustment by a silicon controlled rectifier light modulator. The control circuit comprises the components of: a bypass amplifying circuit, a bypass switching circuit, an adaptive detecting circuit, an LED module, a color temperature adjusting depth control point circuit and a color temperature adjusting start point controlling circuit. The bypass amplifying circuit, the bypass switching circuit, the adaptive detecting circuit, the color temperature adjusting depth control point circuit and the color temperature adjusting start point controlling circuit are successively connected. The LED module is connected with the bypass amplifying circuit, the bypass switching circuit, the adaptive detecting circuit and the color temperature adjusting depth control point circuit respectively. According to the LED illumination control circuit, a light-and-color adjusting detecting circuit and a control circuit are added on two ends of an LED load, so that the silicon controlled rectifier light modulator performs light adjustment and simultaneously changes color temperature in a synchronous manner, thereby realizing a function of synchronous light-and-color adjustment.
Description
Technical field
The utility model relates to a kind of LED control circuit technology, in particular a kind of LED illumination control circuit of realizing the photochromic people having the same aspiration and interest for controllable silicon dimmer.
Background technology
The current light source applications of LED energy-conserving and environment-protective of using is more and more wider, and along with the development of LED technology, people are also more and more higher to light quality requirements.Adjust brightness and can meet with adjustment colour temperature the demand that numerous clients change light, the variation of LED luminous power is progressively changing people's life.
The mode that realizes at present tunable optical color-adjustable mainly adopts RGB mixed light colour mixture to realize, red, green, blue three kinds of basic colour temperatures that LED load adopts, by the size of three kinds of colour temperature LED operating currents is controlled, various colour temperature LED brightness is controlled, reached a kind of effect of mixing colour temperature and realize toning.But this control mode cannot realize synchronous light modulation when adjusting colour temperature, light modulation and toning function are separately controlled.Another control mode, by complicated control circuits such as PWM, need to add extra controller, remote controller etc. and realize minute other light modulation and toning function, and whole control do not simplified, and design cost is high, is difficult for carrying out in enormous quantities popularization for general illumination and adopts.
Existing tunable optical color-adjustable control circuit, the LED drive circuit of a kind of tunable optical adjustable color temperature as disclosed in Chinese patent CN103152932A, with reference to Fig. 1, the LED drive circuit of its this tunable optical adjustable color temperature, in order to drive the LED lighting device being formed by N paths of LEDs lamp string, N >=2, comprise a constant current generating circuit, and a buffer circuit, is selected circuit and a control circuit; Described control circuit, according to the light modulation of described LED lighting device and color-temperature regulating requirement, produces the state that corresponding control signal is controlled described constant current generating circuit and described selection circuit; Described constant current generating circuit receives DC input voitage and described control signal, to produce constant output current, drives described LED lighting device; Described buffer circuit is connected to the output of described constant current generating circuit, to limit the output voltage of described constant current generating circuit output; Described selection circuit and described N paths of LEDs lamp series winding connect, and to select corresponding described LED lamp string according to described control signal, make described output current drive corresponding LED lamp string.
The LED drive circuit of above-mentioned tunable optical adjustable color temperature, can light modulation and the function of color-temperature regulating although realized, and has a following defect:
1, cannot realize synchronous color-temperature regulating when light modulation.
2, LED load must more than two-way, be unfavorable for the control of cost like this.
3, adopt pwm signal to control, be unfavorable for realizing the integrated whole lamp source Miniaturization Design of LED.
4, adopt MCU programmable to control each output loop, control circuit is complicated, and cost is high.
5, cannot compatible silicon controlled light modulation.
Utility model content
The utility model provides the synchronous light modulation of a kind of follow-on LED toning control circuit, and the color temperature characteristic by the load self of LED lamp pearl realizes self adaptation light modulation and mixes colours, and arrives the required colour temperature of set brightness.
In order to reach above-mentioned the first object, the utility model by the following technical solutions:
For controllable silicon dimmer, realize the LED illumination control circuit of the photochromic people having the same aspiration and interest, comprise bypass amplifying circuit 101 for generation of colour temperature variation effect, for controlling colour temperature, change with brightness the by-pass switch circuit 102 of synchronizeing, self-adapting detecting circuit 103, LED module, colour temperature regulation depth control point circuit 105 and the colour temperature adjusting starting point control circuit 106 for providing colour temperature to control reference signal are provided; Described bypass amplifying circuit 101, by-pass switch circuit 102, self-adapting detecting circuit 103, colour temperature regulation depth control point circuit 105 and colour temperature regulate starting point control circuit 106 to be linked in sequence; Described LED module is connected with bypass amplifying circuit 101, by-pass switch circuit 102, self-adapting detecting circuit 103 and colour temperature regulation depth control point circuit 105 respectively, along with the brightness of controllable silicon regulator adjusting LED module, the colour temperature of LED module also changes according to default scope thereupon.
Preferably, described bypass amplifying circuit comprises the first triode, and the emitter of the first triode connects the first resistance R 1, and base stage connects by-pass switch circuit, and collector electrode connects LED module.
Preferably, described by-pass switch unit comprises the second triode, and the collector electrode that the collector electrode of the second triode is connected with the 3rd resistance R 3, the second triodes is connected with the base stage of the first triode.
Preferably, described self-adapting detecting circuit comprises the 3rd triode and the 4th triode, the base stage of the 3rd triode is connected with the base stage of the 4th triode, the 4th transistor collector is also connected with diode, the negative electrode of diode is connected with the 4th transistor collector, and the anodic bonding of diode has the second resistance R 2; The emitter of the 4th triode is connected with voltage stabilizing didoe Z1.
Preferably, described colour temperature regulation depth control point circuit comprises the 5th resistance, the 6th resistance, the 7th resistance and the first electric capacity, in parallel with the 5th resistance after described the 6th resistance and the series connection of the 7th resistance, the 7th resistance and the first Capacitance parallel connection.
Preferably, described colour temperature adjusting starting point control circuit is a rheostat.
Preferably, described LED module comprises the first LED module and the second LED module, and the first LED module and the second LED module are connected on respectively colour temperature regulation depth control point circuit and colour temperature regulates starting point control circuit two ends.
The control method that realizes the LED illumination control circuit of the photochromic people having the same aspiration and interest for controllable silicon dimmer, comprises the steps:
S1, when colour temperature regulates starting point after whole lamp starts to light, colour temperature regulates starting point control circuit 106 feedback LED current informations to self-adapting detecting circuit 103;
S2, then control by-pass switch circuit 102, bypass amplifying circuit 101 input control electric currents;
S3, the size that drives the dimming curve of input controllable silicon dimmer to distribute different-colour LED electric current according to needed colour temperature cooperated with LED, determine that colour temperature starts the particular location changing.
Preferably, step S3 is specially: by colour temperature regulation depth point control circuit 105 feedback LED current informations, arrive self-adapting detecting circuit 103, then control by-pass switch circuit 102, provide bypass amplifying circuit 101 input control electric currents, the size that drives the dimming curve of input controllable silicon dimmer to allocate different-colour LED electric current I 1 and I2 according to needed colour temperature cooperated with LED, realizes the concrete excursion of colour temperature.
Preferably, by controlling colour temperature, regulate starting point control circuit 106 to change colour temperature adjusting initial point position; By colour temperature regulation depth point control circuit 105, control the position at colour temperature regulation depth control point.
Operation principle of the present utility model is:
When LED driving does not connect dimmer, the electric current that LED drives is I1 loop;
When LED driving connects dimmer, regulate dimmer that the brightness of LED module is diminished, but colour temperature regulation depth control point circuit 105 and colour temperature regulate not Da Sewen adjustment preset value of starting point control circuit 106, self-adapting detecting circuit 103 maintenance by-pass switch circuit 102 do not trigger and make bypass amplifying circuit 101 static, and the electric current that LED drives is I1 loop;
When LED driving connects dimmer, regulate dimmer that the brightness of LED module is diminished, colour temperature regulates starting point control circuit 106 to reach colour temperature and adjusts preset value, and self-adapting detecting circuit 103 triggers by-pass switch circuit 102 starts bypass amplifying circuit 101, and the electric current that LED drives is I2 loop; The colour temperature of LED module starts to start to change from default initial border, and the real time information self-adapting detecting circuit 103 providing according to colour temperature regulation depth control point circuit 105 is controlled by-pass switch circuit 102 and bypass amplifying circuit 101 makes the colour temperature of LED module do synchronous variation with brightness;
When regulating dimmer to make the brightness of LED module continue to diminish, according to colour temperature regulation depth control point circuit 105 and colour temperature, regulate real time information self-adapting detecting circuit 103 that starting point control circuit 106 provides to control by-pass switch circuit 102 and make all electric currents of bypass amplifying circuit 101 absorption circuits, along with the default termination border of colour temperature infinite tendency colour temperature of the LED module that diminishes of LED module brightness.
Compared with prior art, tool has the following advantages and beneficial effect the utility model:
1, the utility model adopt control circuit again in LED load circuit design detect control circuit, in conjunction with the requirement of LED module mixed light colour mixture, and synchronously carry out colour temperature adjusting while coordinating controllable silicon to regulate brightness.Sort circuit control mode design of the present utility model is applicable to the LED product that any common controllable silicon dimmer is realized light modulation, do not need additionally to increase reception of wireless signals and control circuit, do not need remote controller to control light modulation toning function, do not need to drop into expensive structural design.
2, the whole control circuit of control circuit of the present utility model is flexibly compact, only need to be on LED heat-radiating substrate or at the LED of the drive circuit output control circuit of arranging; Global design is very simple, and it is identical with traditional common dimming LED (Light Emitting Diode) light source product that outward appearance seems; Low-cost design, can meet the use of ordinary consumer simultaneously.
3, control method of the present utility model not only can realize single channel between LED+ and LED-and control, also can realize N road controls, N >=2, in the utility model, light modulation toning is by different-colour scope the first LED module (high color temperature) and the second LED module (low colour temperature), one colour temperature scope control circuit, one colour temperature conversion control circuit, self-adapting detecting circuit, open the light control circuit and bypass amplifying circuit of bypass realized the control to two kinds of colour temperature LED operating current sizes, mixing two or more colour temperatures reaches light modulation process and synchronously carries out the function of colour temperature variation, reach the light modulation effect that multichannel colour temperature changes simultaneously simultaneously.
4, the transplantability of control circuit of the present utility model is strong, can be used in conjunction with any circuit topological structure of specifying LED to drive supplier to provide, and has greatly increased the flexibility of circuit.
5, control method of the present utility model can utilize controllable silicon light modulation to realize on the circuit of light modulation product, increase control circuit of the present utility model and just can realize the function of synchronous light modulation toning, difference is the control method of other light modulation tonings in the market, lamp controller in addition be need to increase, control mode complexity and the high shortcoming of cost solved.
Accompanying drawing explanation
Figure 1 shows that the theory diagram of the LED drive circuit that adopts prior art tunable optical adjustable color temperature;
Figure 2 shows that the theory diagram that adopts the applicable controllable silicon dimmer of prior art to realize light modulation;
Figure 3 shows that and according to the utility model, for controllable silicon dimmer, realize the LED illumination control circuit figure of the photochromic people having the same aspiration and interest;
Fig. 4 is depicted as according to the utility model colour temperature to regulate starting point to control schematic diagram;
Fig. 5 is depicted as according to the utility model colour temperature regulation depth control point schematic diagram.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Referring to figs. 2 and 3, Fig. 2 is the theory diagram that existing applicable controllable silicon dimmer is realized light modulation, conventional thyristor regulating optical circuit is connected in series controllable silicon dimmer 201 at AC for electrical input, through EMI filter network 202, through current rectifying and wave filtering circuit 203, by AC rectification, be direct current again, then by driving and 204 pairs of LED loads 205 of adjusting control circuit, export and light, realize can dimming function simultaneously, Fig. 3 realizes the LED illumination control circuit figure of synchronous light modulation toning for be applicable to controllable silicon dimmer according to the utility model, in implementation process, when controllable silicon 201 starts light modulation, adjusting control circuit 204 can be adjusted LED load current and realize light modulation, simultaneously Fig. 3 control circuit of mixing colours can be set according to design parameter, Synchronization Control the first LED module 104 and the different size of current of the second LED module 107, the first LED module 104 and the second LED module 107 generation colour mixture brighteness ratios of different-colour are changed, reach the function of synchronous color-temperature regulating.
Implementation of the present utility model is as 205 parts in Fig. 2, and two kinds or two or more colour temperature are selected in described LED load, and two ends increase detection and control circuit simultaneously, realizes synchronous light modulation toning and controls function.Described LED load 205 partial circuits design by different parameters, can control colour temperature and regulate initial point position and position, colour temperature regulation depth control point, can realize the omnidistance variable color of light modulation process, and the arbitrfary point that also can realize light modulation process starts to adjust colour temperature.
Described LED load 205 two ends increase part control circuit in conjunction with Fig. 3, comprise that bypass amplifying circuit 101, by-pass switch circuit 102, self-adapting detecting circuit 103, LED module, colour temperature regulation depth control point circuit 105 and colour temperature regulate starting point control circuit 106; Described bypass amplifying circuit 101, by-pass switch circuit 102, self-adapting detecting circuit 103, colour temperature regulation depth control point circuit 105 and colour temperature regulate starting point control circuit 106 to be linked in sequence; Described LED module is connected with bypass amplifying circuit 101, by-pass switch circuit 102, self-adapting detecting circuit 103 and colour temperature regulation depth control point circuit 105 respectively; The control circuit of the present embodiment is according to different-colour control range two ends, according to corresponding the first LED module 104 and the second LED module 107, to form to realize to adjust colour temperature object.
Described bypass amplifying circuit 101 comprises the first triode Q1, and the emitter of the first triode Q1 connects the first resistance R 1, and base stage connects by-pass switch circuit 102, and collector electrode connects LED module; Described LED module comprises that the first LED module 104 and the second LED module 107, the first LED modules 104 and the second LED module 107 are connected on respectively colour temperature regulation depth control point circuit 105 and colour temperature regulates starting point control circuit 106 two ends.
Described by-pass switch unit 102 comprises the second triode Q2, and the collector electrode that the other end that the collector electrode of the second triode Q2 is connected with the 3rd resistance R 3, the three resistance R 3 is connected with the 4th resistance R 4, the second triode Q2 is connected with the base stage of the first triode.
Described self-adapting detecting circuit 103 comprises the 3rd triode Q3 and the 4th triode Q4, the base stage of the 3rd triode Q3 is connected with the base stage of the 4th triode Q4, the collector electrode of the 4th triode Q4 is also connected with diode D1, the negative electrode of diode D1 is connected with the 4th triode Q4 collector electrode, and the anodic bonding of diode D1 has the second resistance R 2; The emitter of the 4th triode Q4 is connected with voltage stabilizing didoe Z1.
Described colour temperature regulation depth control point circuit 105 comprises the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7 and the first capacitor C 1, in parallel with the 5th resistance R 5 after described the 6th resistance R 6 and the 7th resistance R 7 series connection, the 7th resistance R 7 and the first capacitor C 1 parallel connection.
In the present embodiment, in order more simply to realize colour temperature, regulate, it is a rheostat RT that described colour temperature regulates starting point control circuit 106.
The control circuit of the present embodiment can be realized synchronous light modulation toning, is conventional applicable LED controllable silicon dimmer product, realizes synchronous colour temperature and regulate in light modulation, as shown in Figure 4 and Figure 5, in Fig. 4, the starting point that A point regulates for colour temperature, L1 is dimming curve, and L2 is color-temperature regulating curve; In Fig. 5, B point is colour temperature regulation depth control point, and L3 is dimming curve, and L4 is color-temperature regulating curve.
The utility model can be realized the control of light modulation process colour temperature adjusted in concert change point, as shown in Figure 3, described colour temperature regulates starting point after whole lamp starts to light, colour temperature regulates starting point control circuit 106 feedback LED current informations to self-adapting detecting circuit 103, then control by-pass switch circuit 102, provide bypass amplifying circuit 101 input control electric currents, the size that drives the dimming curve of input controllable silicon dimmer to distribute different-colour LED electric current according to needed colour temperature cooperated with LED, realize colour temperature and start the particular location changing, as shown in Figure 4, by colour temperature, regulate starting point control circuit 106 to regulate, can change colour temperature and regulate initial point position.
The utility model can also be realized the control of light modulation process colour temperature regulation depth, as shown in Figure 3, described colour temperature regulation depth point control circuit 105 feedback LED current informations are to self-adapting detecting circuit 103, then control by-pass switch circuit 102, provide bypass amplifying circuit 101 input control electric currents, the size that drives the dimming curve of input controllable silicon dimmer to allocate different-colour LED electric current I 1 and I2 according to needed colour temperature cooperated with LED, realize the concrete excursion of colour temperature, as shown in Figure 5, by colour temperature regulation depth point control circuit 105, regulate, can control the position at colour temperature regulation depth control point.
The LED illumination control circuit that controllable silicon dimmer is realized synchronous light modulation toning that is applicable to according to the utility model embodiment, can realize single channel between LED+ and LED-controls, also can realize N road controls, N >=2, described light modulation toning is by different-colour scope the first LED module 104 (high color temperature) and the second LED module 107 (low colour temperature), one colour temperature scope control circuit, one colour temperature conversion control circuit, self-adapting detecting circuit, the bypass control circuit that opens the light, bypass amplifying circuit is realized the control to two kinds of colour temperature LED operating current sizes, mixing two or more colour temperatures reaches light modulation process and synchronously carries out the function of colour temperature variation.This control module can multi-channel parallel mode, reach the light modulation effect that multichannel colour temperature changes simultaneously simultaneously.
Above-described embodiment is preferably execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection range of the present utility model.
Claims (7)
1. a LED illumination control circuit of realizing the photochromic people having the same aspiration and interest for controllable silicon dimmer, it is characterized in that, comprise bypass amplifying circuit 101 for generation of colour temperature variation effect, for controlling colour temperature, change with brightness the by-pass switch circuit 102 of synchronizeing, self-adapting detecting circuit 103, LED module, colour temperature regulation depth control point circuit 105 and the colour temperature adjusting starting point control circuit 106 for providing colour temperature to control reference signal are provided; Described bypass amplifying circuit 101, by-pass switch circuit 102, self-adapting detecting circuit 103, colour temperature regulation depth control point circuit 105 and colour temperature regulate starting point control circuit 106 to be linked in sequence; Described LED module is connected with bypass amplifying circuit 101, by-pass switch circuit 102, self-adapting detecting circuit 103 and colour temperature regulation depth control point circuit 105 respectively, along with the brightness of controllable silicon regulator adjusting LED module, the colour temperature of LED module also changes according to default scope thereupon.
2. a kind of LED illumination control circuit of realizing the photochromic people having the same aspiration and interest for controllable silicon dimmer according to claim 1, it is characterized in that, described bypass amplifying circuit 101 comprises the first triode, the emitter of the first triode connects the first resistance R 1, base stage connects by-pass switch circuit 102, and collector electrode connects LED module.
3. a kind of LED illumination control circuit of realizing the photochromic people having the same aspiration and interest for controllable silicon dimmer according to claim 2, it is characterized in that, described by-pass switch unit 102 comprises the second triode, the collector electrode that the collector electrode of the second triode is connected with the 3rd resistance R 3, the second triodes is connected with the base stage of the first triode.
4. a kind of LED illumination control circuit of realizing the photochromic people having the same aspiration and interest for controllable silicon dimmer according to claim 1, it is characterized in that, described self-adapting detecting circuit 103 comprises the 3rd triode and the 4th triode, the base stage of the 3rd triode is connected with the base stage of the 4th triode, the 4th transistor collector is also connected with diode, the negative electrode of diode is connected with the 4th transistor collector, and the anodic bonding of diode has the second resistance R 2; The emitter of the 4th triode is connected with voltage stabilizing didoe Z1.
5. a kind of LED illumination control circuit of realizing the photochromic people having the same aspiration and interest for controllable silicon dimmer according to claim 1, it is characterized in that, described colour temperature regulation depth control point circuit 105 comprises the 5th resistance, the 6th resistance, the 7th resistance and the first electric capacity, in parallel with the 5th resistance after described the 6th resistance and the series connection of the 7th resistance, the 7th resistance and the first Capacitance parallel connection.
6. a kind of LED illumination control circuit of realizing the photochromic people having the same aspiration and interest for controllable silicon dimmer according to claim 1, is characterized in that, it is a rheostat that described colour temperature regulates starting point control circuit 106.
7. a kind of LED illumination control circuit of realizing the photochromic people having the same aspiration and interest for controllable silicon dimmer according to claim 1, it is characterized in that, described LED module comprises that the first LED module 104 and the second LED module 107, the first LED modules 104 and the second LED module 107 are connected on respectively colour temperature regulation depth control point circuit 105 and colour temperature regulates starting point control circuit 106 two ends.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287224.0U CN203896560U (en) | 2014-05-29 | 2014-05-29 | LED illumination control circuit used for realizing light and color simultaneous adjustment by silicon controlled rectifier light modulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420287224.0U CN203896560U (en) | 2014-05-29 | 2014-05-29 | LED illumination control circuit used for realizing light and color simultaneous adjustment by silicon controlled rectifier light modulator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997835A (en) * | 2014-05-29 | 2014-08-20 | 横店集团得邦照明股份有限公司 | LED illumination control circuit for silicon controlled light modulator to achieve light and color synchronous adjustment and method thereof |
| CN104378894A (en) * | 2014-12-15 | 2015-02-25 | 杭州士兰微电子股份有限公司 | LED dimming drive circuit and output current control circuit and bypass sharing device thereof |
| CN108419329A (en) * | 2018-01-31 | 2018-08-17 | 佛山冠今光电科技有限公司 | LED light light-dimming method, light modulation module and lamps and lanterns |
-
2014
- 2014-05-29 CN CN201420287224.0U patent/CN203896560U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997835A (en) * | 2014-05-29 | 2014-08-20 | 横店集团得邦照明股份有限公司 | LED illumination control circuit for silicon controlled light modulator to achieve light and color synchronous adjustment and method thereof |
| CN103997835B (en) * | 2014-05-29 | 2016-06-29 | 横店集团得邦照明股份有限公司 | LED illumination control circuit and the method for the photochromic people having the same aspiration and interest is realized for controllable silicon dimmer |
| CN104378894A (en) * | 2014-12-15 | 2015-02-25 | 杭州士兰微电子股份有限公司 | LED dimming drive circuit and output current control circuit and bypass sharing device thereof |
| CN104378894B (en) * | 2014-12-15 | 2017-06-16 | 杭州士兰微电子股份有限公司 | LED dimming driving circuits and its output current control circuit and bypass composite device |
| CN108419329A (en) * | 2018-01-31 | 2018-08-17 | 佛山冠今光电科技有限公司 | LED light light-dimming method, light modulation module and lamps and lanterns |
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Granted publication date: 20141022 |