CN2659080Y - Drive circuit for controlling changing of whole-color LED - Google Patents
Drive circuit for controlling changing of whole-color LED Download PDFInfo
- Publication number
- CN2659080Y CN2659080Y CN 200320100895 CN200320100895U CN2659080Y CN 2659080 Y CN2659080 Y CN 2659080Y CN 200320100895 CN200320100895 CN 200320100895 CN 200320100895 U CN200320100895 U CN 200320100895U CN 2659080 Y CN2659080 Y CN 2659080Y
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- mosfet
- full
- emitting diode
- light
- color light
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Abstract
The utility model provides a drive circuit controlling changes of a full-color LED, which comprises a plurality of full-color LED, three MOS FET and a program control IC, each of grids of MOSFET is connected with a program control IC, a source electrode of each of MOSFET is grounded, a drain electrode of each of MOSFET is connected with each of full-color LED chip, which is operated by an inner program of program control IC so as to drive each of MOSFET and further control lighting/extinguishing, light/shade and flashing of the full-color LED.
Description
Technical field
The utility model relates to a kind of drive unit that full-color light-emitting diode changes of controlling, and refers to the drive circuit of light on and off, light and shade and the flicker effect of a kind of may command all-colour LED (including red, green, blue three color chips at the LED illuminating part) especially.
Background technology
See also Fig. 1, the circuit diagram of the drive unit that changes for existing control all-colour LED, comprise a direct current power supply 60, an all-colour LED group 65 and a control IC 70 etc., wherein this LED group 65 is connected to form, and is connected with DC power supply 60 by light-emitting diode L4-L10 and resistance R 4, R5, R6 etc.; The RL pin position end of this control IC 70 is connected with the base stage of a transistor Q1; GL pin position end is connected with the base stage of a transistor Q2; BL pin position end is connected with the base stage of a transistor Q3; VCC pin position end is connected with DC power supply 60; VSS pin position end is connected with the collector electrode of each transistor Q1-Q3, and the emitter of each transistor Q1-Q3 is connected with corresponding light-emitting diode L6, L8, L10.
Reach flickering of driving this light-emitting diode L4-L10 by said structure.Yet, because control IC 70 is fixed output, can't adjust on the time, so the LED group 65 that can't reach than the tool intention controls.Simultaneously, the control of the LED group of solid color also can be because of dispersion, luminous intensity distribution toning, mixed light weak effect.
The utility model content
If can design a kind of control IC that has free-standing output, adjusts time response, can avoid above-mentioned problem.
A purpose of the present utility model, being to provide one can be with a plurality of all-colour LED parallel connection, by the running of programmable controlled IC and MOSFET, reach designing requirement at the characteristic of product (as Art wall lamp, Landscape Lamp, projecting lamp, advertising signboard etc.), to promote the illumination change quality.
Another purpose of the present utility model is to provide one can arrange in pairs or groups as cockchafer or other vegeto-animal model, glass light fixture, to build life-like light dynamic effect full of vitality.
In order to reach above-mentioned purpose, the utility model provides a kind of drive unit of light on and off, light and shade and flicker effect of may command all-colour LED, and its concrete technical scheme is achieved in that
The drive circuit that a kind of control full-color light-emitting diode (LED) changes is characterized in that comprising:
Many all-colour LEDs, each all-colour LED tie up to the chip that a LED illuminating part includes red, green, blue three colors;
Three MOS (metal-oxide-semiconductor) memory (MOSFET), the source ground of each MOSFET, the drain electrode of each MOSFET is connected with the corresponding pin of the chip of each all-colour LED position end; And
One programmable controlled IC is connected with the grid of each MOSFET respectively, and this programmable controlled IC is complied with its procedure operation with driven MOS FET, and then the light on and off of control all-colour LED, light and shade variation and flicker effect.
Wherein, each MOSFET is a N type MOSFET.
Wherein, the grid of each MOSFET is connected with a direct current power supply through a resistance.
Wherein, the drain electrode of each MOSFET is connected with the chip of all-colour LED through a connecting seat.
Description of drawings
Fig. 1 is the circuit diagram of the drive unit of existing control all-colour LED variation.
The circuit diagram that Fig. 2 changes for the utility model control all-colour LED.
The flow chart that Fig. 3 changes for the flicker of the utility model control all-colour LED, light and shade.
Wherein, description of reference numerals is as follows:
All-colour LED 1
MOS (metal-oxide-semiconductor) memory (MOSFET) 2
The one MOSFET Q1
The 2nd MOSFET Q2
The 3rd MOSFET Q3
Programmable controlled IC 3
Embodiment
For feature of the present utility model and technology contents are further understood, see also following about detailed description of the present utility model and accompanying drawing.
See also Fig. 2, the utility model is a kind of drive unit that all-colour LED changes of controlling, be the drive unit of light on and off, light and shade and the flicker effect of may command all-colour LED (including red, green, blue three color chips), comprise 1, three MOS (metal-oxide-semiconductor) memory of many all-colour LEDs (D1-Dn) (MOSFET) 2 and a programmable controlled IC 3 at the LED illuminating part; Wherein:
Each all-colour LED (D1-Dn) is meant the chip that includes red, green, blue three colors at each LEDs illuminating part, each chip all contains B-, R-, G-, R+, R-, G+B+ pin position end, the R+ of each chip, G+B+ pin position end link together, and are connected with a direct current power supply VCC.
The source ground of each MOSFET, drain electrode is connected with the corresponding pin position end of the chip of each all-colour LED 1 through a connecting seat JP1 and most resistance R 1-R9, wherein the drain electrode of a MOSFET Q1 is connected with the R-pin position end of the chip of each all-colour LED through resistance R 2, R5, R8, with the redness of control all-colour LED; The drain electrode of the 2nd MOSFET Q2 is connected with the G-pin position end of the chip of each all-colour LED through resistance R 3, R6, R9, with the green of control all-colour LED; The drain electrode of the 3rd MOSFET Q3 is connected with the B-pin position end of the chip of each all-colour LED through resistance R 1, R4, R7, with the blueness of control all-colour LED.
Programmable controlled IC 3, its P1.0 pin position end is connected with the grid of a MOSFET Q1, and is connected with VCC pin position end and DC power supply VCC through one first resistance R 11; P1.1 pin position end is connected with the grid of the 2nd MOSFET Q2, and is connected with VCC pin position end through one second resistance R 12; P1.2 pin position end is connected with the grid of the 3rd MOSFET Q3, and is connected with VCC pin position end through one the 3rd resistance R 13.
This programmable controlled IC 3 is according to the running of its internal processes, and driving each MOSFET Q1-Q3, and then the light on and off of control all-colour LED 1, light and shade change and flicker effect, as Fig. 3.Be to carry out quickflashing and light and shade variation in embodiment of the present utility model according to dark blue → pale blue → green → yellow → red → purple → white → dark blue order.
Pass through said structure, the utility model can be reached designing requirement at the characteristic of product (as Art wall lamp, Landscape Lamp, projecting lamp, advertising signboard etc.), promoting the illumination change quality, and see through the characteristic of glass light conducting lamp, build the artistic environment of dim fantasy warmth.
In sum, by the circuit of improvement provided by the utility model, can have following advantage:
1. light on and off, the light and shade that cooperates MOSFET can control all-colour LED by programmable controlled IC changes and flicker effect.
2. can reach designing requirement at the light fixture product performance, promoting the illumination change quality, and see through the characteristic of glass light conducting lamp, build the artistic environment of dim fantasy warmth.
The above only is the specific embodiment of the utility model the best; and be not in order to limit protection range of the present utility model; all those skilled in the art can think easily according to the foregoing description and variation or modification, all should be covered by in the application's the protection range that claims defined.
Claims (4)
1. control the drive circuit that full-color light-emitting diode changes for one kind, it is characterized in that comprising:
Many full-color light-emitting diodes comprise the chip of three kinds of colors of red, green, blue in the lumination of light emitting diode portion of each full-color light-emitting diode;
Three MOSFET, the source ground of each MOSFET, the drain electrode of each MOSFET is connected with the corresponding pin position end of the chip of each full-color light-emitting diode; And
One programmable controlled IC is connected with the grid of each MOSFET respectively, and this programmable controlled IC drives this MOSFET according to its procedure operation, and then controls these full-color light-emitting diode light on and off, light and shade variation and flicker.
2. the drive circuit that control full-color light-emitting diode as claimed in claim 1 changes is characterized in that each MOSFET is a N type MOSFET.
3. the drive circuit that control full-color light-emitting diode as claimed in claim 1 changes is characterized in that the grid of each MOSFET is connected with a direct current power supply through a resistance.
4. the drive circuit that control full-color light-emitting diode as claimed in claim 1 changes is characterized in that the drain electrode of each MOSFET is connected with the chip of full-color light-emitting diode through a connecting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100895 CN2659080Y (en) | 2003-10-30 | 2003-10-30 | Drive circuit for controlling changing of whole-color LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100895 CN2659080Y (en) | 2003-10-30 | 2003-10-30 | Drive circuit for controlling changing of whole-color LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2659080Y true CN2659080Y (en) | 2004-11-24 |
Family
ID=34339442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320100895 Expired - Fee Related CN2659080Y (en) | 2003-10-30 | 2003-10-30 | Drive circuit for controlling changing of whole-color LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2659080Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009065277A1 (en) * | 2007-11-20 | 2009-05-28 | Chengchang Lai | Intelligent led full-color lamp group and decorate lamp bunch thereof |
| CN103024977A (en) * | 2011-09-27 | 2013-04-03 | 瀚宇彩晶股份有限公司 | Light emitting diode driving circuit |
| TWI405499B (en) * | 2008-04-29 | 2013-08-11 | Semisilicon Technology Corp | Voltage series of light - emitting diode string module |
-
2003
- 2003-10-30 CN CN 200320100895 patent/CN2659080Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009065277A1 (en) * | 2007-11-20 | 2009-05-28 | Chengchang Lai | Intelligent led full-color lamp group and decorate lamp bunch thereof |
| TWI405499B (en) * | 2008-04-29 | 2013-08-11 | Semisilicon Technology Corp | Voltage series of light - emitting diode string module |
| CN103024977A (en) * | 2011-09-27 | 2013-04-03 | 瀚宇彩晶股份有限公司 | Light emitting diode driving circuit |
| US8901833B2 (en) | 2011-09-27 | 2014-12-02 | Hannstar Display Corporation | LED driving circuit preventing light leakage issue |
| CN103024977B (en) * | 2011-09-27 | 2015-08-19 | 瀚宇彩晶股份有限公司 | Light emitting diode driving circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |