CN101852374B - Unflickering LED MR16 spot light with light regulating function - Google Patents
Unflickering LED MR16 spot light with light regulating function Download PDFInfo
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- CN101852374B CN101852374B CN201010191376.7A CN201010191376A CN101852374B CN 101852374 B CN101852374 B CN 101852374B CN 201010191376 A CN201010191376 A CN 201010191376A CN 101852374 B CN101852374 B CN 101852374B
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Abstract
The invention relates to an unflickering LED MR16 spot light with the light regulating function, which comprises a power module, wherein the power module is arranged in the LED MR16 lamp body, can receive the controlled silicon light regulation mode, and comprises a first flickering prevention circuit, a rectifier circuit, a second flickering prevention circuit, an LED constant current source, a LED light source, a light regulation signal output circuit and a light regulation signal detection circuit, the input light regulation voltage realizes the unflickering effect through being processed by the first flickering prevention circuit, the rectifier circuit and the second flickering prevention circuit, the light regulation voltage detected by the light regulation signal detection circuit is sent to the light regulation signal output circuit to be processed, light regulation control signals are output to the LED constant current source, and the LED constant current source controls the LED light source to realize the light regulation effect. The invention is required to have wide application prospects in the aspect of LED illumination under the controlled silicon light regulation mode.
Description
Art
The present invention relates to a kind of LED MR16 shot-light, more specifically, particularly a kind ofly do not glimmer and there is the LEDMR16 shot-light of dimming function.
Background technology
In traditional illumination, halogen MR16 shot-light tool colour temperature is good, low-voltage (12VAC) is powered and has good thermal resistance because of it, and be inductive load, make its dimming effect very perfect, therefore it obtains long-term applying in lighting field.But along with the development of science and technology, have the life-span long, energy-conservation, started to replace traditional lighting without the LED illumination of the characteristics such as ultraviolet radiation.Halogen MR16 shot-light because of its power consumption to have started comparatively greatly replace by the less LED MR16 of power consumption.But because LED is semiconductor devices, be again that constant current drives, be capacitive load, thermal resistance is very little, and thus LED MR16 on the market can not realize light modulation as traditional halogen MR16 shot-light; For compatibility traditional drive merit MR16 corollary equipment-electronic transformer, no matter be halogen MR16 shot-light or LED MR16 shot-light, all use the electronic transformer of 20W ~ 50W to drive.But LEDMR16 is because of power very little (being generally less than 7W), and traditional halogen MR16 shot-light is between 20W ~ 50W, and that is afraid of that LED MR16 does not have dimming function, because its power is too small, when it connects electronic transformer, there will be stroboscopic, let alone dimming effect.Do you how to overcome the problems referred to above? the problem that LED MR16 will solve is applied by being.
Summary of the invention
The object of the present invention is to provide and a kind ofly do not glimmer and have the LED MR16 shot-light of dimming function, this shot-light can on the basis of traditional lighting corollary equipment, and realizing can perfect light modulation or the effect of not glimmering.
In order to achieve the above object, technical scheme of the present invention is:
Describedly a kind ofly do not glimmer and have the LED MR16 shot-light of dimming function, it comprises: be placed on the power module that can receive controllable silicon light modulation mode in LED MR16 lamp body;
The described power module that can receive controllable silicon light modulation mode, comprises anti-flicker circuit one (1), rectification circuit (2), anti-flicker circuit two (3), LED constant current source (4), LED light source (5), dim signal output circuit (6), dim signal testing circuit (7);
Its annexation: light modulation alternating current enters rectification circuit (2) after anti-flicker circuit one (1) processes, Hou Fen tri-tunnel is processed through anti-flicker circuit two (3) after rectification, dim signal testing circuit (7) is sent on one tunnel, another two-way gives LED constant current source (4) and dim signal output circuit (6) power supply respectively, LED constant current source (4) Direct driver LED light source (5), the signal that dim signal testing circuit (7) obtains send dim signal output circuit (6), send dimming control signal to LED constant current source (4) after process, LED constant current source (4) directly drives LED light source (5),
Concrete rate-determining steps is:
Power supply with dimming information is done after anti-sudden strain of a muscle process through anti-flicker circuit one (1), send rectification circuit (2), the anti-sudden strain of a muscle process of secondary is done through anti-flicker circuit two (3) again after rectification, the voltage obtained after process gives LED constant current source (4) and dim signal output circuit (6) power supply respectively, another route dim signal testing circuit (7) detects the dimmer voltage of 0 ~ 3V, send dim signal output circuit (6), dim signal output circuit (6) is according to the dimmer voltage of 0 ~ 3V, the PWM dimming control signal exporting dutycycle corresponding with it delivers to LED constant current source (4), LED constant current source (4) driving LED light source (5).
Described anti-flicker circuit one (1) comprises resistance R1, and the span of resistance R1 is 0.1 ~ 10 beat up nurse, and resistance R1 can replace with inductance, and the span of inductance is 0.1 ~ 22uH.
Described anti-flicker circuit two (2) comprises resistance R2, and the span of resistance R2 is 0.1 ~ 10 beat up nurse, and resistance R2 can replace with inductance, and the span of inductance is 0.1 ~ 22uH.
Described LED constant current source (4), it comprises chip MAX16820, resistance R3, electric capacity C1, C2, inductance L 1, metal-oxide-semiconductor Q1, diode D5.
Described dim signal testing circuit (7), comprises resistance R4 ~ R5, electric capacity C3, and they detect the dim signal obtaining 0 ~ 3V.
Described dim signal output circuit (6), comprises resistance R6 ~ R10, electric capacity C4, IC1LM7805, amplifier IC2 ~ IC3, diode D6;
Amplifier IC3 and resistance R6 ~ R9, electric capacity C4, diode D6 connect to form triangle wave generating circuit, the triangular wave that triangle wave generating circuit produces exports from the 2nd pin of amplifier IC3 inverting input 6 pin being connected to the amplifier IC2 of device of making comparisons, the dimmer voltage of 0 ~ 3V is connected to in-phase input end 5 pin of amplifier IC2, and and triangle wave generating circuit produce triangle wave, relatively after amplifier IC2 output pin the 7th pin export PWM dim signal deliver in LED constant current source (4).
The effect of invention
1, the light modulation of LED MR16 shot-light on traditional light modulation circuit is solved.
2, brightness adjustment control good linearity, does not glimmer.
3, circuit and existing circuit compatibility are installed.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present invention.
Fig. 2 is that the present invention is not glimmered and has the LED MR16 shot-light built-in circuit schematic diagram of dimming function
Fig. 3 is the wiring diagram of Dimmable LED MR16 Lamp cup
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
As shown in Figure 1, be schematic block circuit diagram of the present invention, a kind ofly do not glimmer and have the LED MR16 shot-light of dimming function, it comprises: be placed on the power module that can receive controllable silicon light modulation mode in LED MR16 lamp body;
The described power module that can receive controllable silicon light modulation mode, comprises anti-flicker circuit one (1), rectification circuit (2), anti-flicker circuit two (3), LED constant current source (4), LED light source (5), dim signal output circuit (6), dim signal testing circuit (7);
Its annexation: light modulation alternating current enters rectification circuit (2) after anti-flicker circuit one (1) processes, Hou Fen tri-tunnel is processed through anti-flicker circuit two (3) after rectification, dim signal testing circuit (7) is sent on one tunnel, another two-way gives LED constant current source (4) and dim signal output circuit (6) power supply respectively, LED constant current source (4) Direct driver LED light source (5), the signal that dim signal testing circuit (7) obtains send dim signal output circuit (6), send dimming control signal to LED constant current source (4) after process, LED constant current source (4) directly drives LED light source (5),
Concrete rate-determining steps is:
Power supply with dimming information is done after anti-sudden strain of a muscle process through anti-flicker circuit one (1), send rectification circuit (2), the anti-sudden strain of a muscle process of secondary is done through anti-flicker circuit two (3) again after rectification, the voltage obtained after process gives LED constant current source (4) and dim signal output circuit (6) power supply respectively, another route dim signal testing circuit (7) detects the dimmer voltage of 0 ~ 3V, send dim signal output circuit (6), dim signal output circuit (6) is according to the dimmer voltage of 0 ~ 3V, the PWM dimming control signal exporting dutycycle corresponding with it delivers to LED constant current source (4), LED constant current source (4) driving LED light source (5).
Fig. 2 is that the present invention is not glimmered and has the LED MR16 shot-light built-in circuit schematic diagram of dimming function.
As shown in the figure, be placed on the power supply that can accept dim signal in LED MR16 lamp body, it comprises: anti-flicker circuit one (1), rectification circuit (2), anti-flicker circuit two (3), LED constant current source (4), LED light source (5), dim signal output circuit (6), dim signal testing circuit (7).
Circuit working principle, in figure, dimmer voltage enters from ACL, ACN, carries out anti-flicker process through anti-flicker circuit one (1).Described anti-flicker circuit one (1) comprises resistance R1, and the span of resistance R1 is 0.1 ~ 10 beat up nurse, and resistance R1 can replace with inductance, and the span of inductance is 0.1 ~ 22uH.Once after anti-flicker process, the rectification circuit formed via diode D1 ~ D4 carries out rectification, carries out the anti-flicker process of secondary again after rectification through anti-flicker circuit two (2).Described anti-flicker circuit two (2) comprises resistance R2, and the span of resistance R2 is 0.1 ~ 10 beat up nurse, and resistance R2 can replace with inductance, and the span of inductance is 0.1 ~ 22uH.After twice anti-flicker process, Fen Sanlu, dim signal testing circuit (7) is sent on a road, and described dim signal testing circuit (7), comprises resistance R4 ~ R5, electric capacity C3, and they detect the dim signal obtaining 0 ~ 3V; Dim signal output circuit (6) is sent on another road, and described dim signal output circuit (6), comprises resistance R6 ~ R10, electric capacity C4, IC1LM7805, amplifier IC2 ~ IC3, diode D6.Wherein, IC1LM7805 provides stable 5V to power for this element, amplifier IC3 and resistance R6 ~ R9, electric capacity C4, diode D6 connects to form triangle wave generating circuit, the triangular wave that triangle wave generating circuit produces exports from the 2nd pin of amplifier IC3 inverting input 6 pin being connected to the amplifier IC2 of device of making comparisons, the dimmer voltage of 0 ~ 3V that dim signal testing circuit (7) exports is connected to in-phase input end 5 pin of amplifier IC2, and and triangle wave generating circuit produce triangle wave, the PWM dim signal that relatively, output pin the 7th pin of amplifier IC2 exports is delivered in LED constant current source (4), a road is to LED constant current source (4) power supply again, and described LED constant current source (4), it comprises chip MAX16820, resistance R3, electric capacity C1, C2, inductance L 1, metal-oxide-semiconductor Q1, diode D5.LED constant current source (4) exports and connects LED light source (5).
Fig. 3 is the wiring diagram of Dimmable LED MR16 Lamp cup.
Electric main (8), through controllable silicon dimmer (9), to MR16 transformer (10), exports and connects LED MR16 Lamp cup (11).
To a kind of do not glimmer and have dimming function LED MR16 shot-light describe, the invention provides and do not glimmer and there is the LED MR16 shot-light control circuit of dimming function, while satisfied traditional MR16 shot-light circuit replaces requirement, when can realize there is when light modulation high linearity light modulation or not using dimming function, there is the effect of not glimmering.
Although the present invention describes with reference to the above embodiments; but those of ordinary skill in the art; clearly should recognize that above embodiment is only the excellent example of explanation of the present invention; should understand and wherein can do each change and amendment and not depart from the present invention in a broad sense; so not as restriction of the present invention; as long as in spirit of the present invention, all the protection domain of the claims in the present invention will be fallen into the change of above-described enforcement distortion or amendment.
Claims (7)
1. do not glimmer and there is the LED MR16 shot-light of dimming function, it is characterized in that: its built-in one piece of power module that can receive controllable silicon light modulation mode, the power module of described received controllable silicon light modulation mode, comprises anti-flicker circuit one (1), rectification circuit (2), anti-flicker circuit two (3), LED constant current source (4), LED light source (5), dim signal output circuit (6), dim signal testing circuit (7);
Its annexation: light modulation alternating current enters rectification circuit (2) after anti-flicker circuit one (1) processes, Hou Fen tri-tunnel is processed through anti-flicker circuit two (3) after rectification, dim signal testing circuit (7) is sent on one tunnel, another two-way gives LED constant current source (4) and dim signal output circuit (6) power supply respectively, LED constant current source (4) Direct driver LED light source (5), the signal that dim signal testing circuit (7) obtains send dim signal output circuit (6), send dimming control signal to LED constant current source (4) after process, LED constant current source (4) Direct driver LED light source (5),
Concrete rate-determining steps is:
Light modulation alternating current is done after anti-sudden strain of a muscle process through anti-flicker circuit one (1), send rectification circuit (2), the anti-sudden strain of a muscle process of secondary is done through anti-flicker circuit two (3) again after rectification, the voltage obtained after process gives LED constant current source (4) and dim signal output circuit (6) power supply respectively, another route dim signal testing circuit (7) detects the dimmer voltage of 0 ~ 3V, send dim signal output circuit (6), dim signal output circuit (6) is according to the dimmer voltage of 0 ~ 3V, the PWM dimming control signal exporting dutycycle corresponding with it delivers to LED constant current source (4), LED constant current source (4) driving LED light source (5).
2. according to claim 1ly do not glimmer and have the LED MR16 shot-light of dimming function, it is characterized in that: described anti-flicker circuit one (1) comprises resistance R1, the span of resistance R1 is 0.1 ~ 10 ohm.
3. resistance R1 according to claim 2, is characterized in that: described resistance R1, resistance R1 inductance replaces, and the span of inductance is 0.1 ~ 22uH.
4. according to claim 1ly do not glimmer and have the LED MR16 shot-light of dimming function, it is characterized in that: described anti-flicker circuit two (3) comprises resistance R2, the span of resistance R2 is 0.1 ~ 10 ohm.
5. resistance R2 according to claim 4, is characterized in that: described resistance R2, resistance R2 inductance replaces, and the span of inductance is 0.1 ~ 22uH.
6. according to claim 1ly do not glimmer and have the LED MR16 shot-light of dimming function, it is characterized in that: described LED constant current source (4), it comprises chip MAX16820, resistance R3, electric capacity C1, C2, inductance L 1, metal-oxide-semiconductor Q1, diode D5.
7. according to claim 1ly do not glimmer and have the LED MR16 shot-light of dimming function, it is characterized in that: described dim signal testing circuit (7), comprises resistance R4 ~ R5, electric capacity C3, their detect the dim signal obtaining 0 ~ 3V.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010191376.7A CN101852374B (en) | 2010-06-03 | 2010-06-03 | Unflickering LED MR16 spot light with light regulating function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010191376.7A CN101852374B (en) | 2010-06-03 | 2010-06-03 | Unflickering LED MR16 spot light with light regulating function |
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| CN101852374A CN101852374A (en) | 2010-10-06 |
| CN101852374B true CN101852374B (en) | 2015-01-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102011055071B4 (en) * | 2010-11-08 | 2023-05-04 | Maxim Integrated Products, Inc. | COMPATIBILITY OF ELECTRONIC TRANSFORMERS FOR LED SYSTEMS |
| CN104154435A (en) * | 2013-05-15 | 2014-11-19 | 列兹沃德私人有限公司 | Light source used for generating variable illumination and method for forming light source |
| CN203761654U (en) * | 2014-03-25 | 2014-08-06 | 肖梦春 | Digital adaptive type dimming power supply |
| CN105338718B (en) * | 2015-12-08 | 2018-09-18 | 王汉忠 | It is a kind of based on linearly with the LED constant current driving method and device of PWM operating modes |
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| JP2008053189A (en) * | 2006-08-28 | 2008-03-06 | Matsushita Electric Works Ltd | Light control switch |
| CN101420802A (en) * | 2008-12-02 | 2009-04-29 | 深圳市亮百佳电子科技有限公司 | The LED constant-current source that is used for the AC controllable silicon light modulation mode of illuminator |
| KR20100033142A (en) * | 2008-09-19 | 2010-03-29 | 화우테크놀러지 주식회사 | Heat discharge structure for led lamp |
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| JP2008053189A (en) * | 2006-08-28 | 2008-03-06 | Matsushita Electric Works Ltd | Light control switch |
| KR20100033142A (en) * | 2008-09-19 | 2010-03-29 | 화우테크놀러지 주식회사 | Heat discharge structure for led lamp |
| CN101420802A (en) * | 2008-12-02 | 2009-04-29 | 深圳市亮百佳电子科技有限公司 | The LED constant-current source that is used for the AC controllable silicon light modulation mode of illuminator |
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Address after: 518081 Guangdong city of Shenzhen province Baoan District manhole street and a community of Western Industrial Zone Xin Lian River Industrial Park, No. 4 Building B Applicant after: Luxbetter (Shenzhen) Electronic Technology Co., Ltd. Address before: 518081 Guangdong Province, Shenzhen City manhole street and village Jincheng Road Xinlian Industrial Park 4 East River Applicant before: Luxbetter (Shenzhen) Electronic Technology Co., Ltd. |
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