CN101852374A - 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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- CN101852374A CN101852374A CN201010191376A CN201010191376A CN101852374A CN 101852374 A CN101852374 A CN 101852374A CN 201010191376 A CN201010191376 A CN 201010191376A CN 201010191376 A CN201010191376 A CN 201010191376A CN 101852374 A CN101852374 A CN 101852374A
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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
Affiliated technical field
The present invention relates to a kind of LED MR16 shot-light, more specifically, particularly a kind of LEDMR16 shot-light that does not glimmer and have dimming function.
Background technology
In traditional illumination, halogen MR16 shot-light tool colour temperature is good, low-voltage (12VAC) is powered and because of it has good thermal resistance, be inductive load, make its dimming effect very perfect, so it has obtained long-term applying in lighting field.But, has LED illumination having begun the to replace traditional lighting of characteristics such as long, energy-conservation, no ultraviolet radiation of life-span along with science and technology development.Halogen MR16 shot-light has begun to be replaced by the less LED MR16 of power consumption greatly because of its power consumption.But because of LED is a semiconductor devices, be again that constant current drives, be capacitive load, thermal resistance is very little, thereby 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 driving of 20W～50W.Yet 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 of its power too small, when it connects electronic transformer, stroboscopic can appear, let alone dimming effect.Do you how to overcome the problems referred to above? to be to apply the problem that LED MR16 will solve.
Summary of the invention
The object of the present invention is to provide a kind of LED MR16 shot-light that does not glimmer and have dimming function, this shot-light can be on the basis of traditional lighting corollary equipment, and realization can perfect light modulation or the effect of not glimmering.
In order to achieve the above object, technical scheme of the present invention is:
Described a kind of LED MR16 shot-light that does not glimmer and have dimming function, it comprises: be placed on the power module that can receive controllable silicon light modulation mode in the 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: the light modulation alternating current enters rectification circuit (2) after anti-flicker circuit one (1) is handled, rectification divides three the tunnel after anti-flicker circuit two (3) is handled the back, one the tunnel send dim signal testing circuit (7), two-way is given the power supply of LED constant-current source (4) and dim signal output circuit (6) respectively in addition, LED constant-current source (4) is driving LED light source (5) directly, the signal that dim signal testing circuit (7) obtains send dim signal output circuit (6), send dimming control signal to give LED constant-current source (4) after the processing, LED constant-current source (4) directly drives led light source (5);
Concrete control step is:
The power supply of band light modulation information is after anti-flicker circuit one (1) is done anti-sudden strain of a muscle processing, send rectification circuit (2), doing anti-sudden strain of a muscle of secondary through anti-flicker circuit two (3) again after the rectification handles, the voltage that obtains after the processing is given the power supply of LED constant-current source (4) and dim signal output circuit (6) 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 output PWM dimming control signal of corresponding dutycycle is with it delivered to LED constant-current source (4), LED constant-current source (4) driving LED light source (5).
Described anti-flicker circuit one (1) comprises resistance R 1, and the span of resistance R 1 is 0.1～10 to beat up nurse, and resistance R 1 can replace with inductance, and the span of inductance is 0.1～22uH.
Described anti-flicker circuit two (2) comprises resistance R 2, and the span of resistance R 2 is 0.1～10 to beat up nurse, and resistance R 2 can replace with inductance, and the span of inductance is 0.1～22uH.
Described LED constant-current source (4), it comprises chip MAX16820, resistance R 3, capacitor C 1, C2, inductance L 1, metal-oxide-semiconductor Q1, diode D5.
Described dim signal testing circuit (7) comprises resistance R 4～R5, capacitor C 3, and they detect the dim signal that obtains 0～3V.
Described dim signal output circuit (6) comprises resistance R 6～R10, capacitor C 4, IC1LM7805, amplifier IC2～IC3, diode D6;
Amplifier IC3 and resistance R 6～R9, capacitor C 4, diode D6 connect to form triangle wave generating circuit, the triangular wave that triangle wave generating circuit produces is connected to inverting input 6 pin of the amplifier IC2 of the device of making comparisons from the 2nd pin output of amplifier IC3, the dimmer voltage of 0～3V is connected to in-phase input end 5 pin of amplifier IC2, and and the triangular wave that produces of triangle wave generating circuit relatively, relatively the PWM dim signal of output pin the 7th pin output of back amplifier IC2 is delivered on the LED constant-current source (4).
The effect of invention
1, solved the light modulation of LED MR16 shot-light on traditional light modulation circuit.
2, the brightness adjustment control good linearity is not glimmered.
3, circuit and existing circuit compatibility are installed.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention.
Fig. 2 is that the present invention is not glimmered and had 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
The specific embodiment
The present invention is further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, be schematic block circuit diagram of the present invention, a kind of LED MR16 shot-light that does not glimmer and have dimming function, it comprises: be placed on the power module that can receive controllable silicon light modulation mode in the 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: the light modulation alternating current enters rectification circuit (2) after anti-flicker circuit one (1) is handled, rectification divides three the tunnel after anti-flicker circuit two (3) is handled the back, one the tunnel send dim signal testing circuit (7), two-way is given the power supply of LED constant-current source (4) and dim signal output circuit (6) respectively in addition, LED constant-current source (4) is driving LED light source (5) directly, the signal that dim signal testing circuit (7) obtains send dim signal output circuit (6), send dimming control signal to give LED constant-current source (4) after the processing, LED constant-current source (4) directly drives led light source (5);
Concrete control step is:
The power supply of band light modulation information is after anti-flicker circuit one (1) is done anti-sudden strain of a muscle processing, send rectification circuit (2), doing anti-sudden strain of a muscle of secondary through anti-flicker circuit two (3) again after the rectification handles, the voltage that obtains after the processing is given the power supply of LED constant-current source (4) and dim signal output circuit (6) 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 output PWM dimming control signal of corresponding dutycycle is with it delivered 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 had 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 the 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).
The circuit working principle, among the figure, dimmer voltage enters from ACL, ACN, prevents the flicker processing through anti-flicker circuit one (1).Described anti-flicker circuit one (1) comprises resistance R 1, and the span of resistance R 1 is 0.1～10 to beat up nurse, and resistance R 1 can replace with inductance, and the span of inductance is 0.1～22uH.After once anti-flicker was handled, the rectification circuit of forming via diode D1～D4 carried out rectification, carried out the anti-flicker of secondary through anti-flicker circuit two (2) again after the rectification and handled.Described anti-flicker circuit two (2) comprises resistance R 2, and the span of resistance R 2 is 0.1～10 to beat up nurse, and resistance R 2 can replace with inductance, and the span of inductance is 0.1～22uH.After twice anti-flicker processing, Fen Sanlu, the one tunnel send dim signal testing circuit (7), and described dim signal testing circuit (7) comprises resistance R 4～R5, capacitor C 3, and their detect the dim signal that obtains 0～3V; Dim signal output circuit (6) is sent on another road, and described dim signal output circuit (6) comprises resistance R 6～R10, capacitor C 4, IC1LM7805, amplifier IC2～IC3, diode D6.Wherein, IC1LM7805 provides stable 5V power supply for this element, amplifier IC3 and resistance R 6～R9, capacitor C 4, diode D6 connects to form triangle wave generating circuit, the triangular wave that triangle wave generating circuit produces is connected to inverting input 6 pin of the amplifier IC2 of the device of making comparisons from the 2nd pin output of amplifier IC3, the dimmer voltage of 0～3V of dim signal testing circuit (7) output is connected to in-phase input end 5 pin of amplifier IC2, and and the triangular wave that produces of triangle wave generating circuit relatively, relatively the PWM dim signal of output pin the 7th pin output of back amplifier IC2 is delivered on the LED constant-current source (4); One the tunnel give LED constant-current source (4) power supply again, described LED constant-current source (4), it comprises chip MAX16820, resistance R 3, capacitor C 1, C2, inductance L 1, metal-oxide-semiconductor Q1, diode D5.LED constant-current source (4) output 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), output connects LED MR16 Lamp cup (11).
To a kind of LED MR16 shot-light description of not glimmering and having dimming function, the invention provides the LED MR16 shot-light control circuit that does not glimmer and have dimming function, on satisfying traditional MR16 shot-light circuit, replace in the requirement, when having the high linearity light modulation in the time that light modulation can being implemented in or not using dimming function, has the effect of not glimmering.
Though the present invention describes with reference to the above embodiments; but those of ordinary skill in the art; the above embodiment that recognizes that should be understood that only is the excellent example of explanation of the present invention; should understand and wherein can do each and change and revise and do not break away from the present invention in a broad sense; so be not as qualification of the present invention; as long as in connotation scope of the present invention, to the variation distortion of above-described enforcement or revise the protection domain that all will fall into claim of the present invention.
Claims (7)
1. the LED MR16 shot-light of the dimming function that do not glimmer and have is characterized in that: its built-in power module that can receive controllable silicon light modulation mode.
2. a kind of LED MR16 shot-light that does not glimmer and have dimming function according to claim 1, it is characterized in that: the described power module that receives 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: the light modulation alternating current enters rectification circuit (2) after anti-flicker circuit one (1) is handled, rectification divides three the tunnel after anti-flicker circuit two (3) is handled the back, one the tunnel send dim signal testing circuit (7), two-way is given the power supply of LED constant-current source (4) and dim signal output circuit (6) respectively in addition, LED constant-current source (4) is driving light source LED (5) directly, the signal that dim signal testing circuit (7) obtains send dim signal output circuit (6), send dimming control signal to give LED constant-current source (4) after the processing, LED constant-current source (4) directly drives led light source (5);
Concrete control step is:
The power supply of band light modulation information is after anti-flicker circuit one (1) is done anti-sudden strain of a muscle processing, send rectification circuit (2), doing anti-sudden strain of a muscle of secondary through anti-flicker circuit two (3) again after the rectification handles, the voltage that obtains after the processing is given the power supply of LED constant-current source (4) and dim signal output circuit (6) 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 output PWM dimming control signal of corresponding dutycycle is with it delivered to LED constant-current source (4), LED constant-current source (4) driving light source LED (5).
3. a kind of LED MR16 shot-light that does not glimmer and have dimming function according to claim 2, it is characterized in that: described anti-flicker circuit one (1) comprises resistance R 1, the span of resistance R 1 is 0.1～10 to beat up nurse, resistance R 1 can replace with inductance, and the span of inductance is 0.1～22uH.
4. a kind of LED MR16 shot-light that does not glimmer and have dimming function according to claim 2, it is characterized in that: described anti-flicker circuit two (2) comprises resistance R 2, the span of resistance R 2 is 0.1～10 to beat up nurse, resistance R 2 can replace with inductance, and the span of inductance is 0.1～22uH.
5. a kind of LED MR16 shot-light that does not glimmer and have dimming function according to claim 2 is characterized in that: described LED constant-current source (4), it comprises chip MAX16820, resistance R 3, capacitor C 1, C2, inductance L 1, metal-oxide-semiconductor Q1, diode D5.
6. a kind of LED MR16 shot-light that does not glimmer and have dimming function according to claim 2 is characterized in that: described dim signal testing circuit (7), comprise resistance R 4～R5, capacitor C 3, and they detect the dim signal that obtains 0～3V.
7. a kind of LED MR16 shot-light that does not glimmer and have dimming function according to claim 2 is characterized in that: described dim signal output circuit (6) comprises resistance R 6～R10, capacitor C 4, IC1LM7805, amplifier IC2～IC3, diode D6;
Amplifier IC3 and resistance R 6～R9, capacitor C 4, diode D6 connect to form triangle wave generating circuit, the triangular wave that triangle wave generating circuit produces is connected to inverting input 6 pin of the amplifier IC2 of the device of making comparisons from the 2nd pin output of amplifier IC3, the dimmer voltage of 0～3V is connected to in-phase input end 5 pin of amplifier IC2, and and the triangular wave that produces of triangle wave generating circuit relatively, relatively the PWM dim signal of output pin the 7th pin output of back amplifier IC2 is delivered on the LED constant-current source (4).
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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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| CN101852374B CN101852374B (en) | 2015-01-28 |
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| CN102573210A (en) * | 2010-11-08 | 2012-07-11 | 美信集成产品公司 | Electronic transformer compatibility for light emitting diode 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 |
| WO2015144017A1 (en) * | 2014-03-25 | 2015-10-01 | 肖梦春 | Digital adaptive dimming power supply |
| CN105338718A (en) * | 2015-12-08 | 2016-02-17 | 王汉忠 | LED constant-current driving method and device based on linearity and PWM operating mode |
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2010
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102573210A (en) * | 2010-11-08 | 2012-07-11 | 美信集成产品公司 | Electronic transformer compatibility for light emitting diode systems |
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| 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 |
| WO2015144017A1 (en) * | 2014-03-25 | 2015-10-01 | 肖梦春 | Digital adaptive dimming power supply |
| CN105338718A (en) * | 2015-12-08 | 2016-02-17 | 王汉忠 | LED constant-current driving method and device based on linearity and PWM operating mode |
| 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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