CN202634808U - Constant-current LED lighting lamp with continuously-adjustable color temperature and brightness - Google Patents
Constant-current LED lighting lamp with continuously-adjustable color temperature and brightness Download PDFInfo
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- CN202634808U CN202634808U CN 201220231855 CN201220231855U CN202634808U CN 202634808 U CN202634808 U CN 202634808U CN 201220231855 CN201220231855 CN 201220231855 CN 201220231855 U CN201220231855 U CN 201220231855U CN 202634808 U CN202634808 U CN 202634808U
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Abstract
Disclosed is a constant-current LED lighting lamp with continuously-adjustable color temperature and brightness, belonging to the technical field of electronic applications. The constant-current LED lighting lamp comprises a rectifying filter circuit, a warm-toned LED component and a cool-toned LED component, the input end of the rectifying filter circuit is connected to a commercial power supply, and the output end is separately connected with the warm-toned LED component and the cool-toned LED component, wherein the warm-toned LED component includes a first adjustable constant current drive circuit and a 2000-3000K orange-yellow LED connected with the first adjustable constant current drive circuit, and the cool-toned LED component includes a second adjustable constant current drive circuit and a 7000-8000K blue-white LED connected with the second adjustable constant current drive circuit. According to the utility model, continuous variable brightness and warm- and cool-toned light mixing effect can be generated by continuously adjusting the LED lighting color temperature from orange-yellow 2700k to bluish 7800k so as to create the best lighting and light-using environment constituted by different light colors.
Description
Technical field
The utility model relates to a kind of illuminating lamp, particularly relates to the continuously adjustable constant-current LED illuminating lamp of a kind of colour temperature and brightness, belongs to the electrical application technology field.
Background technology
Solid-state white LED illumination has become typical case's representative of energy-conserving and environment-protective illumination of new generation, still is difficult to find trace but on application and light fixture selling market, can satisfy the continuously adjustable LED illuminating lamp of constant-current driving and colour temperature and brightness at present simultaneously.Propose under the environment of requirements at the higher level in people's illumination intensity and visual color temp effect; Solve the colour temperature and the continuous adjustable problem of brightness of solid state LED illumination under the constant current operating state; Satisfy various lighting consumers' demand; Realize that the 7800K of LED illumination colour temperature from orange-yellow 2700K to inclined to one side blueness is adjustable continuously, build the optimal illumination of different photochromic compositions and use luminous environment, have important practical significance.
The utility model content
To above-mentioned deficiency, the utility model provides a kind of colour temperature and the continuously adjustable constant-current LED illuminating lamp of brightness, and the lighting environment that they can be different according to the user is built the continuously adjustable lighting atmosphere of colour temperature and brightness, satisfies the demand of different application environment.
The technical scheme of the utility model is: the continuously adjustable constant-current LED illuminating lamp of a kind of colour temperature and brightness; It is characterized in that; Comprise current rectifying and wave filtering circuit, warm tones LED assembly and cool tone LED assembly; The input of said current rectifying and wave filtering circuit is electrically connected with the city, and output is connected with cool tone LED assembly with warm tones LED assembly respectively; Wherein, said warm tones LED assembly comprises the first adjustable constant-flow drive circuit and the warm colour LED that is attached thereto, and said warm colour LED adopts the orange-yellow LED of 2000K-3000K; Said cool tone LED assembly comprises the second adjustable constant-flow drive circuit and the cool colour LED that is attached thereto, and said cool colour LED adopts 7000K-8000K blue and white LED.
Preferably; Said current rectifying and wave filtering circuit comprises cartridge fuse F, rectification full-bridge D1-D4 and filter capacitor C; An ac input end of said rectification full-bridge directly is electrically connected with the city; Another ac input end is electrically connected with the city through cartridge fuse, and the positive pole of said filter capacitor is connected with negative output terminal with the positive output end of rectification full-bridge respectively with negative pole.
Preferably; The said first adjustable constant-flow drive circuit comprises linear LED constant-flow driver IC1, resistance R 1, resistance R 2 and adjustable resistance W1; The anode input Va of said linear LED constant-flow driver IC1 is connected with the positive output end of rectification full-bridge and an end of resistance R 1 respectively; Cathode end Vb is connected with the end of adjustable resistance W1 and the positive pole of warm colour LED respectively; Pressure feedback port Is is connected with the other end of resistance R 1 and an end of resistance R 2 respectively, and the other end of said resistance R 2 is connected with adjustable end with the other end of adjustable resistance W1 respectively.
Preferably; The said second adjustable constant-flow drive circuit comprises linear LED constant-flow driver IC2, resistance R 3, resistance R 4 and adjustable resistance W2; The anode input Va of said linear LED constant-flow driver IC2 is connected with the positive output end of rectification full-bridge and an end of resistance R 3 respectively; Cathode end Vb is connected with the end of adjustable resistance W2 and the positive pole of cool colour LED respectively; Pressure feedback port Is is connected with the other end of resistance R 3 and an end of resistance R 4 respectively, and the other end of said resistance R 4 is connected with adjustable end with the other end of adjustable resistance W2 respectively.
Warm colour LED is made up of the orange-yellow LED of 2000K-3000K; Cool colour LED is made up of 7000K-8000K blue and white LED; Many again group LED composed in parallel after warm colour LED or cool colour LED can connect.Warm colour LED and cool colour LED can adjust respectively, make it work in different constant current values; The maximum output current value of the adjustable drive circuit of constant current is set at the maximum rated operating current of warm colour LED or cool colour LED respectively.
The beneficial effect of the utility model is: the utility model carries out operating current through the adjustable constant-flow drive circuit to be regulated; Make the maximum current of regulating output not exceed the maximum rated operating current of LED; Thereby produce the brightness and the cold and warm tone mixed light effect of continuous variable, realize that colour temperature and the brightness under the different constant current numerical value operating states is adjustable continuously.The utility model is adjustable through the 7800K of LED illumination colour temperature from orange-yellow 2700K to inclined to one side blueness carried out continuously, produce the brightness and the cold and warm tone mixed light effect of continuous variable, thereby the optimal illumination of building different photochromic compositions is used luminous environment.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explanation:
Fig. 1 is the theory diagram of the utility model;
Fig. 2 is the circuit theory diagrams of the utility model;
Among the figure, LED1 is warm colour LED, and LED2 is cool colour LED.
Embodiment
As depicted in figs. 1 and 2; The continuously adjustable constant-current LED illuminating lamp of a kind of colour temperature of the utility model and brightness; It comprises current rectifying and wave filtering circuit, warm tones LED assembly and cool tone LED assembly; The input of said current rectifying and wave filtering circuit is electrically connected with the city, and output is connected with cool tone LED assembly with warm tones LED assembly respectively; Wherein, said warm tones LED assembly comprises the first adjustable constant-flow drive circuit and the warm colour LED that is attached thereto, and said warm colour LED adopts the orange-yellow LED of 2000K-3000K; Said cool tone LED assembly comprises the second adjustable constant-flow drive circuit and the cool colour LED that is attached thereto, and said cool colour LED adopts 7000K-8000K blue and white LED.
Said current rectifying and wave filtering circuit comprises cartridge fuse F, rectification full-bridge D1-D4 and filter capacitor C; Said rectification full-bridge D1-D4 is made up of 4 diode D1, D2, D3 and D4; The ac input end of rectification full-bridge D1-D4 directly is electrically connected with the city; Another ac input end is electrically connected with the city through cartridge fuse F, and the positive pole of said filter capacitor C is connected with negative output terminal with the positive output end of rectification full-bridge D1-D4 respectively with negative pole.
The said first adjustable constant-flow drive circuit comprises linear LED constant-flow driver IC1, resistance R 1, resistance R 2 and adjustable resistance W1; The anode input Va of said linear LED constant-flow driver IC1 is connected with the positive output end of rectification full-bridge and an end of resistance R 1 respectively; Cathode end Vb is connected with the end of adjustable resistance W1 and the positive pole of warm colour LED respectively; Pressure feedback port Is is connected with the other end of resistance R 1 and an end of resistance R 2 respectively, and the other end of said resistance R 2 is connected with adjustable end with the other end of adjustable resistance W1 respectively; The negative pole of said warm colour LED is connected with the negative output terminal of rectification full-bridge.
The said second adjustable constant-flow drive circuit comprises linear LED constant-flow driver IC2, resistance R 3, resistance R 4 and adjustable resistance W2; The anode input Va of said linear LED constant-flow driver IC2 is connected with the positive output end of rectification full-bridge and an end of resistance R 3 respectively; Cathode end Vb is connected with the end of adjustable resistance W2 and the positive pole of cool colour LED respectively; Pressure feedback port Is is connected with the other end of resistance R 3 and an end of resistance R 4 respectively, and the other end of said resistance R 4 is connected with adjustable end with the other end of adjustable resistance W2 respectively; The negative pole of said cool colour LED is connected with the negative output terminal of rectification full-bridge.
In the foregoing description: F is the 1A cartridge fuse; D1-D4 is the rectifier diode of 1N4007 model, forms bridge rectifier; C is a filter capacitor, and model is 4.7-47 μ F/400V electrochemical capacitors; IC1, IC2 are linear LED constant-flow drivers, and model is LC1920 or 192076B9M, and it is 5-90V that cathode and anode Va, Vb can bear voltage range; Output current is adjustable, and Is is a pressure feedback port, and there is a reference source of a 0.66V in portion within it; Through Is terminal voltage feedback, reach the purpose of constant current.Because there is fluctuation in AC 220V line voltage, when linear LED constant-flow driver anode and cathode voltage difference is 44V, can satisfy constant current work in ± 20% power network fluctuation scope.The output current of the utility model is to regulate through the W1 in the circuit, R2 or W2, R4, if drive the LED of 20mA respectively, the resistance value of R2, R4 is R2=R4=0.66V/20mA=33 Ω so, R1=R3=5.1K Ω.W1, W2 are adjustable resistance, W1=W2=800 Ω; Through the change resistance, the size that can regulate IC1, IC2 constant current output current respectively, thus realize the adjustable continuously of LED illuminating lamp colour temperature and brightness.
Claims (4)
1. colour temperature and the continuously adjustable constant-current LED illuminating lamp of brightness; It is characterized in that; Comprise current rectifying and wave filtering circuit, warm tones LED assembly and cool tone LED assembly, the input of said current rectifying and wave filtering circuit is electrically connected with the city, and output is connected with cool tone LED assembly with warm tones LED assembly respectively; Wherein, said warm tones LED assembly comprises the first adjustable constant-flow drive circuit and the warm colour LED that is attached thereto, and said warm colour LED adopts the orange-yellow LED of 2000K-3000K; Said cool tone LED assembly comprises the second adjustable constant-flow drive circuit and the cool colour LED that is attached thereto, and said cool colour LED adopts 7000K-8000K blue and white LED.
2. the continuously adjustable constant-current LED illuminating lamp of a kind of colour temperature according to claim 1 and brightness; It is characterized in that; Said current rectifying and wave filtering circuit comprises cartridge fuse F, rectification full-bridge D1-D4 and filter capacitor C; An ac input end of said rectification full-bridge directly is electrically connected with the city, and another ac input end is electrically connected with the city through cartridge fuse, and the positive pole of said filter capacitor is connected with negative output terminal with the positive output end of rectification full-bridge respectively with negative pole.
3. the continuously adjustable constant-current LED illuminating lamp of a kind of colour temperature according to claim 1 and brightness; It is characterized in that; The said first adjustable constant-flow drive circuit comprises linear LED constant-flow driver IC1, resistance R 1, resistance R 2 and adjustable resistance W1; The anode input Va of said linear LED constant-flow driver IC1 is connected with the positive output end of rectification full-bridge and an end of resistance R 1 respectively; Cathode end Vb is connected with the end of adjustable resistance W1 and the positive pole of warm colour LED respectively, and pressure feedback port Is is connected with the other end of resistance R 1 and an end of resistance R 2 respectively, and the other end of said resistance R 2 is connected with adjustable end with the other end of adjustable resistance W1 respectively.
4. the continuously adjustable constant-current LED illuminating lamp of a kind of colour temperature according to claim 1 and brightness; It is characterized in that; The said second adjustable constant-flow drive circuit comprises linear LED constant-flow driver IC2, resistance R 3, resistance R 4 and adjustable resistance W2; The anode input Va of said linear LED constant-flow driver IC2 is connected with the positive output end of rectification full-bridge and an end of resistance R 3 respectively; Cathode end Vb is connected with the end of adjustable resistance W2 and the positive pole of cool colour LED respectively, and pressure feedback port Is is connected with the other end of resistance R 3 and an end of resistance R 4 respectively, and the other end of said resistance R 4 is connected with adjustable end with the other end of adjustable resistance W2 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231855 CN202634808U (en) | 2012-05-22 | 2012-05-22 | Constant-current LED lighting lamp with continuously-adjustable color temperature and brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231855 CN202634808U (en) | 2012-05-22 | 2012-05-22 | Constant-current LED lighting lamp with continuously-adjustable color temperature and brightness |
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| Publication Number | Publication Date |
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| CN202634808U true CN202634808U (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220231855 Expired - Fee Related CN202634808U (en) | 2012-05-22 | 2012-05-22 | Constant-current LED lighting lamp with continuously-adjustable color temperature and brightness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103889117A (en) * | 2014-03-17 | 2014-06-25 | 无锡汉咏微电子股份有限公司 | Intelligent dimming high-efficiency and constant-current LED drive chip |
-
2012
- 2012-05-22 CN CN 201220231855 patent/CN202634808U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103889117A (en) * | 2014-03-17 | 2014-06-25 | 无锡汉咏微电子股份有限公司 | Intelligent dimming high-efficiency and constant-current LED drive chip |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20150522 |
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| EXPY | Termination of patent right or utility model |