CN203814016U - Light-operable and light adjustable LED circuit - Google Patents
Light-operable and light adjustable LED circuit Download PDFInfo
- Publication number
- CN203814016U CN203814016U CN201420188727.2U CN201420188727U CN203814016U CN 203814016 U CN203814016 U CN 203814016U CN 201420188727 U CN201420188727 U CN 201420188727U CN 203814016 U CN203814016 U CN 203814016U
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- CN
- China
- Prior art keywords
- light
- circuit
- control
- integrated block
- twh8778
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
Landscapes
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
The utility model provides a light-operable and light adjustable LED circuit. In the prior art, an automobile employs direct current incandescent lamps which are low in efficiency, not energy-saving, and not allowing automating light adjustment. The light-operable and light adjustable LED circuit comprises a power supply input terminal, an integrated block TWH8778, an integrated block LM338, a micro-control circuit, a voltage regulating and light adjusting circuit, a protection circuit, an LED lightening up circuit, and a light-operated automatic light adjusting circuit, wherein an input terminal of the integrated block TWH8778 is connected with the power supply input terminal, the micro-control circuit is disposed between the input terminal and the control terminal of the integrated block TWH8778; an output terminal of the integrated block TWH8778 is connected with an input terminal of the integrated block LM338, a control terminal of the integrated block LM338 is connected with the voltage regulating and light adjusting circuit and the light-operated automatic light adjusting circuit which are connected in a parallel manner, and the output terminal of the integrated block LM338 is connected with the LED lightening up circuit. The light-operable and light adjustable LED circuit has a light adjusting function, so that traffic accidents caused by string light stimulation of a driver's eye in the driving access are avoided.
Description
Technical field
the utility model relates to a kind of circuit, be specifically related to a kind of can be light-operated, the LED circuit of light modulation.
Background technology
?existing automobile adopts the illumination of direct current incandescent lamp bulb, because incandescent lamp bulb power consumption is large, although it can become luminous energy electric energy conversion, but efficiency is low, not energy-conservation, the life-span is short, can not light modulation, more can not be with an automatic light meter, when automobile meeting, because of can not light modulation, high light can stimulate driver's eyes, and traffic accident easily occurs.
Summary of the invention
The purpose of this utility model be to provide a kind of energy-conservation, efficiency is high and can automatically carry out light modulation can be light-operated, the automobile LED circuit of light modulation.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of can be light-operated, the LED circuit of light modulation, comprise power input, integrated package TWH8778, integrated package LM338, micro-control circuit, voltage-control dimming circuit, protective circuit, LED lighting circuit and light-control automatic dimming circuit; The input of described integrated package TWH8778 connects power input, and micro-control circuit is between the input and control end of integrated package TWH8778; The input of the output access integrated package LM338 of integrated package TWH8778, the control end of integrated package LM338 is connected with voltage-control dimming circuit in parallel and light-control automatic dimming circuit, its output connects LED lighting circuit, and protective circuit is between the control end and output of integrated package LM338; The output of voltage-control dimming circuit, light-control automatic dimming circuit and LED lighting circuit is ground connection respectively.
Compared with prior art, the utlity model has following beneficial effect: the utility model becomes luminous energy efficiency high electric energy conversion, the energy-conservation life-span is long, easy maintain and replace, it has dimming function, during light modulation, utilize low-voltage, the change of little electric current, adjust high voltage, large curent change, can not cause traffic accident because high light stimulates driver's eyes when driving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the circuit theory diagrams of Fig. 1.
Wherein: 1. power input; 2. micro-control circuit; 3. voltage-control dimming circuit; 4. protective circuit; 5.LED lighting circuit; 6. light-control automatic dimming circuit.
Embodiment
Below in conjunction with embodiment, the utility model is described in detail.
Referring to Fig. 1, a kind of can be light-operated, the LED circuit of light modulation, comprise power input 1, integrated package TWH8778, integrated package LM338, micro-control circuit 2, voltage-control dimming circuit 3, protective circuit 4, LED lighting circuit 5 and light-control automatic dimming circuit 6; Input 1 pin of integrated package TWH8778 connects power input 1, micro-control circuit 2 between its input 1 pin and control end 5 pins, the 4 pin ground connection of integrated package TWH8778; The output 2 of integrated package TWH8778, input 3 pins of 3 pin access integrated package LM338, its control end 1 pin is connected with voltage-control dimming circuit 3 in parallel and light-control automatic dimming circuit 6, its output 2 pins connect LED lighting circuit 5, and protective circuit 4 is between the control end and output of integrated package LM338; The output of voltage-control dimming circuit, light-control automatic dimming circuit and LED lighting circuit is ground connection respectively.
The utility model adopts conventional double-deck band switch to control micro-control circuit 2 and voltage-control dimming circuit 3, comprise the control switch K1 that is positioned at one deck and the light controlled voltage-regulating K switch 2 that is positioned at another layer, wherein control switch K1 and resistance R 1 are composed in series micro-control circuit 2; K switch 2 is composed in series respectively voltage-control dimming circuit 3 with resistance R 2, R3, R4 and R5; Resistance R 8 is composed in series light-control automatic dimming circuit 6 with photo resistance R6; Diode D1 and resistance R 7 compose in parallel protective circuit 4; LED lighting circuit 5 comprises LED1, LED2, LED3, LED4, LED5 and LED6,
In parallel with the LED4 connecting, LED5 and LED6 after LED1, LED2 and LED3 series connection.
The resistance of above-mentioned resistance R 2 is 2.6 kilo-ohms, the resistance of resistance R 3 is 2.8 kilo-ohms, the resistance of resistance R 4 is 3 kilo-ohms, the resistance of resistance R 5 is 3.2 kilo-ohms, the resistance of photo resistance R6 is 10 Europe-2 megaohms, and the resistance of resistance R 8 is 40 kilo-ohms, and the resistance of resistance R 7 is 240 Europe, LED1, LED2, LED3, LED4, LED5 and LED6 are respectively 5 watts, and the model of diode D1 is IN4001.
Operation principle of the present utility model is: switch on power, electric current enters integrated package LM338 after integrated package TWH8778, voltage stabilizing is by overprotection circuit, output 18V/2A direct current, enter LED lighting circuit, and by the voltage-control dimming circuit of integrated package LM338 control end connection, LED lighting circuit is carried out to voltage-control dimming, and LED lighting circuit is divided into 15V, 16V, 17V and tetra-gears of 18V, light is divided into the low light level, light, middle high light and four gears of high light; The upper in parallel photo resistance R6 of R5 night, photo resistance R6 was in 2 megaohms during without irradiation, and when strong illumination, photo resistance resistance sharply diminishes, and brightness sharply weakens, and reaches object with an automatic light meter; Resistance after resistance R 5 and photo resistance R6 parallel connection is 3 kilo-ohms of left and right, and the output end voltage of integrated package LM338 is 17V, and light is in brighter state, and light can illuminate the place ahead road does not stimulate again opposite driver's eyes.
Claims (1)
1. can be light-operated, the LED circuit of light modulation, it is characterized in that: comprise power input (1), integrated package TWH8778, integrated package LM338, micro-control circuit (2), voltage-control dimming circuit (3), protective circuit (4), LED lighting circuit (5) and light-control automatic dimming circuit (6); The input of described integrated package TWH8778 connects power input (1), and micro-control circuit (2) is between the input and control end of integrated package TWH8778; The input of the output access integrated package LM338 of integrated package TWH8778, the control end of integrated package LM338 is connected with voltage-control dimming circuit (3) in parallel and light-control automatic dimming circuit (6), its output connects LED lighting circuit (5), and protective circuit (4) is between the control end and output of integrated package LM338; The output of voltage-control dimming circuit (3), light-control automatic dimming circuit (3) and LED lighting circuit (5) is ground connection respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188727.2U CN203814016U (en) | 2014-04-18 | 2014-04-18 | Light-operable and light adjustable LED circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188727.2U CN203814016U (en) | 2014-04-18 | 2014-04-18 | Light-operable and light adjustable LED circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203814016U true CN203814016U (en) | 2014-09-03 |
Family
ID=51452704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420188727.2U Expired - Fee Related CN203814016U (en) | 2014-04-18 | 2014-04-18 | Light-operable and light adjustable LED circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203814016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105163456A (en) * | 2015-09-29 | 2015-12-16 | 黄超发 | Constant-current driving power failure self-delay LED lighting lamp |
-
2014
- 2014-04-18 CN CN201420188727.2U patent/CN203814016U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105163456A (en) * | 2015-09-29 | 2015-12-16 | 黄超发 | Constant-current driving power failure self-delay LED lighting lamp |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20170418 |