CN201869406U - LED (light-emitting diode) control diming decoder - Google Patents
LED (light-emitting diode) control diming decoder Download PDFInfo
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- CN201869406U CN201869406U CN2010205577879U CN201020557787U CN201869406U CN 201869406 U CN201869406 U CN 201869406U CN 2010205577879 U CN2010205577879 U CN 2010205577879U CN 201020557787 U CN201020557787 U CN 201020557787U CN 201869406 U CN201869406 U CN 201869406U
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Abstract
The utility model relates to an LED (light-emitting diode) control dimming decoder, which comprises a single-chip microcomputer, wherein the single-chip microcomputer is respectively connected with a communication circuit module, a dial switch and an analog dimming input module through a line, the communication circuit module is connected with a DMX (data multiplexer) signal input/output interface through a line, the single-chip microcomputer comprises a DMX control module and an analog dimming module, and the DMX control module and the analog dimming module are connected with a PWM (pulse-width modulation) signal output module through lines. The LED control dimming decoder has the beneficial effects that the DMX signal input/output interface and the analog dimming input interface of 0-10V are supported for input, the wide voltage input range of 12-24V can be realized, the single channel output voltage is 12-24V, the large DMX master controller can be combined for dimming, the large dimming bus of 0-10 V can be also combined for dimming, and the dimming output range is 0% to 100%.
Description
Technical field
The utility model relates to a kind of LED control light modulation decoder.
Background technology
Compare with traditional light source, light-emitting diode (LED) possesses numerous advantages, and is low as operating voltage, efficiency height, very small and exquisite and generation directional light.They can provide extremely broad color and white light, do not produce infrared (IR) or ultraviolet (UV) radiation, and because they are solid state device, mechanically very strong, and it is not mercurous, when appropriate design and use, can have and surpass 50,000 hours working life, be longer than 1,000 hour life-span of standard incandescent lamp.These advantages make LED application more and more widely, nowadays had numerous application markets,, automobile backlight and solar energy etc. as construction landscape illumination, traffic lights, display screen, retail, small-medium size LCDs LCD, and have increasing development space aspect backlight at street lighting, residential lighting and even middle large-scale LCD.
At present, the mode of regulating the LED luminous intensity in the prior art mainly contains following two kinds of situations: a kind of is to adopt the Switching Power Supply mode, that is to say pulse-width modulation method (PWM), usually utilize a kind of control circuit, comprise bridge rectifier filter circuit, integrated circuit, feedback circuit, the transformation filter circuit, output circuit, anti-sharp high frequency transformer and control circuit, be provided with adjustable resistance in the described control circuit, change the sampled voltage of integrated circuit, by regulating the resistance of adjustable resistance, the pulse duration that changes high-frequency switch circuit makes the dc voltage stability of load output, and it is adjustable continuously.Though this circuit can play certain stabilization, reach the purpose of light modulation.Another kind is that the electric current of regulating the LED two ends changes.
But above-mentioned two kinds of LED dimming modes mainly exist the change in voltage scope too big, bad control, and also the effect of light modulation is bad, the electric current of regulating the LED two ends changes needs to use the singlechip chip centralized control, and each pixel all needs a controllable current source, circuit complexity, cost height.LED brightness adjustment control mode is single in addition, can only accept single interface input, can not realize wide voltage input, and dimming scope is narrow.
The utility model content
The purpose of this utility model provides a kind of LED control light modulation decoder, control is convenient, circuit is simple, cost is low, supports two kinds of interface inputs of DMX signal input/output interface and 0-10 volt simulation light modulation input, can realize wide voltage input, dimming scope is wide, exist the change in voltage scope too big to overcome existing LED dimming mode, bad control, and also the effect of light modulation is bad, the electric current of regulating the LED two ends changes needs to use the singlechip chip centralized control, and each pixel all needs a controllable current source, circuit complexity, cost height, control mode is single, single interface input can only be accepted, wide voltage input can not be realized, the deficiency that dimming scope is narrow.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of LED control light modulation decoder, comprise single-chip microcomputer, described single-chip microcomputer connects communication circuit module, toggle switch and simulation light modulation input module respectively by circuit, wherein communication circuit module connects DMX signal input/output interface by circuit, described single-chip microcomputer comprises DMX control module and simulation light-adjusting module, and the DMX control module all is connected the pwm signal output module by circuit with the simulation light-adjusting module.
The beneficial effects of the utility model are: support two kinds of interface inputs of DMX signal input/output interface and 0-10 volt simulation light modulation input, can realize the wide voltage input of 12-24 volt, single channel output 12-24 volt, can cooperate large-scale DMX main controller to carry out light modulation, also can cooperate simultaneously large-scale 0-10 volt light modulation bus to carry out light modulation, dimming scope 0%-100% output.
Description of drawings
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation of the described a kind of LED control light modulation decoder of the utility model embodiment.
Among the figure:
1, single-chip microcomputer; 2, communication circuit module; 3, toggle switch; 4, simulation light modulation input module; 5, DMX signal input/output interface; 6, DMX control module; 7, simulation light-adjusting module; 8, pwm signal output module.
Embodiment
As shown in Figure 1, the described a kind of LED control light modulation decoder of the utility model embodiment, comprise single-chip microcomputer 1, described single-chip microcomputer 1 connects communication circuit module 2, toggle switch 3 and simulation light modulation input module 4 respectively by circuit, wherein communication circuit module 2 connects DMX signal input/output interface 5 by circuit, described single-chip microcomputer 1 comprises DMX control module 6 and simulation light-adjusting module 7, and DMX control module 6 all is connected pwm signal output module 8 by circuit with simulation light-adjusting module 7.
5 two kinds of interface inputs of the utility model support simulation light modulation input module 4 and DMX signal input/output interface, simulation light modulation input module 4 adopts 0-10 volt simulation light modulation input, DMX signal input/output interface 5 is accepted the DMX512 signal, control the switch light modulation supporting interface by single-chip microcomputer 1 inside, DMX signal communication address fits into the row address setting by built-in toggle switch of product and single-chip microcomputer, and simulation light modulation input module 4 carries out each loop light modulation by plug-in light modulation equipment.Can realize the wide voltage input of 12-24 volt, single channel output 12-24 volt can cooperate large-scale DMX main controller to carry out light modulation, also can cooperate large-scale 0-10 volt light modulation bus to carry out light modulation, dimming scope 0%-100% output simultaneously.
Claims (1)
1. a LED controls the light modulation decoder, comprise single-chip microcomputer (1), it is characterized in that: described single-chip microcomputer (1) connects communication circuit module (2), toggle switch (3) and simulation light modulation input module (4) respectively by circuit, wherein communication circuit module (2) connects DMX signal input/output interface (5) by circuit, described single-chip microcomputer (1) comprises DMX control module (6) and simulation light-adjusting module (7), and DMX control module (6) all is connected pwm signal output module (8) by circuit with simulation light-adjusting module (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205577879U CN201869406U (en) | 2010-10-12 | 2010-10-12 | LED (light-emitting diode) control diming decoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205577879U CN201869406U (en) | 2010-10-12 | 2010-10-12 | LED (light-emitting diode) control diming decoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201869406U true CN201869406U (en) | 2011-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205577879U Expired - Fee Related CN201869406U (en) | 2010-10-12 | 2010-10-12 | LED (light-emitting diode) control diming decoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201869406U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104994630A (en) * | 2015-06-19 | 2015-10-21 | 伊博电源（杭州）有限公司 | LED drive control method integrating multiple dimming modes |
| CN107272303A (en) * | 2017-05-11 | 2017-10-20 | 杭州新湖电子有限公司 | A kind of photographic lamp system |
-
2010
- 2010-10-12 CN CN2010205577879U patent/CN201869406U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104994630A (en) * | 2015-06-19 | 2015-10-21 | 伊博电源（杭州）有限公司 | LED drive control method integrating multiple dimming modes |
| CN104994630B (en) * | 2015-06-19 | 2019-03-08 | 伊博电源（杭州）有限公司 | A kind of LED driver control method for integrating a variety of dimming modes |
| CN107272303A (en) * | 2017-05-11 | 2017-10-20 | 杭州新湖电子有限公司 | A kind of photographic lamp system |
| CN107272303B (en) * | 2017-05-11 | 2019-09-20 | 杭州新湖电子有限公司 | A kind of photographic lamp system |
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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 |
Granted publication date: 20110615 Termination date: 20141012 |
|
| EXPY | Termination of patent right or utility model |