CN103533722A - LED dimming lamp device - Google Patents
LED dimming lamp device Download PDFInfo
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- CN103533722A CN103533722A CN201310538837.7A CN201310538837A CN103533722A CN 103533722 A CN103533722 A CN 103533722A CN 201310538837 A CN201310538837 A CN 201310538837A CN 103533722 A CN103533722 A CN 103533722A
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Abstract
The invention provides an LED dimming lamp device which is simple and varied in operation manner, high in control accuracy and uniform in illumination of a radiation area. The device comprises a main control module (1), a communication module (2), an upper computer (3), a key module (4), a display module (5), a driving module (6), an LED lamp panel (7) and a power module (8), wherein the communication module (2) is connected with the main control module (1); the upper computer (3) is connected with the communication module (2); the key module (4), the display module (5) and the driving module (6) are connected with the main control module (1); the LED lamp panel (7) is connected with the driving module (6); and the power module (8) is connected with the main control module (1). The dimming technology has the advantages of simple application, high efficiency and accuracy and good dimming effect.
Description
Technical field
The present invention relates to a kind of LED desk lamp with dimmer switch device, is a kind ofly can to the different demands of intensity of illumination, change arbitrarily illumination according to field of employment specifically, and the uniform light fixture of brightness in irradiation area, belongs to energy-saving LED lamp control field.
Background technology
Along with science and technology and social progress, also variation gradually of light fixture, the incandescent lamp high from power consumption, luminance is low to low in energy consumption, luminance is high but fluorescent lamp that the life-span is short, from low price, energy consumption is low, luminance is high electricity-saving lamp, to the color of lamp, can go to change by remote control, the life-span of lamp is longer, volume is less, all-powerful in following decades-LED light fixture, the advantages such as LED lamp has long working life, low-power consumption, the response time is fast, volume is little, lightweight, resistance to resistance, tunable optical, toning, environmental protection.But design LED light fixture also needs the method for being particular about, and the mode of LED light modulation mainly contains three kinds on the market at present: the one, and linearity light adjusting, the 2nd, controllable silicon light modulation, the 3rd, PWM light modulation.Linearity light adjusting is mainly based on simple voltage divider principle, and its advantage is that application is simple, does not produce interference, dumb, inefficiency that shortcoming is, and when reducing LED electric current, can cause that white light LEDs is offset to yellow spectrum, also can produce too much heat because of dividing potential drop simultaneously.A kind of dimming mode that thyristor regulating is only generally adopted at present in incandescent lamp and electricity-saving lamp application.Its operation principle be the waveform of input voltage is cut to ripple by the angle of flow after, produce a tangential output voltage waveforms.Apply tangential principle, can reduce the effective value of output voltage, with this, reduce the power of normal load (ohmic load).The advantage of controllable silicon light modulation is that operating efficiency is higher, stable performance.But based on its operation principle, in application, time also there are some design defect, after the controlled silicon conducting that has its source in of defect, need one to maintain electric current and keep conducting, otherwise can return to cut-off state.Different controllable silicons maintains electric current difference, and conventionally between a few mA to tens mA, what have even reaches 50mA.And power is larger, need to maintain electric current just larger, if it is inadequate to maintain electric current, the angle of flow is unstable, the waveform of output also can be inhomogeneous, and can produce vibration and spike, when so unstable output being added to LED, just there will be flicker when upper.Incandescent lamp is before owing to being linear load, and operating current generally all can surpass 50mA, so there will not be the phenomenon of flicker, therefore the controllable silicon dimmer that is applicable on the market at present incandescent lamp is not directly applied for LED product, need to carry out design improvement to meet the operating characteristic of LED to it.
Given this, the present invention has designed a kind of LED light fixture based on PWM light regulating technology.When carrying out pulse duration PWM light modulation, need to provide an extra pulse width modulation signal source.The pulse signal duty of inputting by change is recently modulated LED and is driven the grid control signal of chip to power field effect pipe, thereby reach, regulates by the object of LED size of current.The advantage of this light regulating technology is that application is simple, efficiency is high, precision is high, and good dimming effect.
Summary of the invention
Technical problem to be solved by this invention is, provides that a kind of mode of operation is simple, various and control precision is high, a kind of LED desk lamp with dimmer switch device of irradiation area uniform-illumination.
The technical solution adopted in the present invention is: a kind of LED desk lamp with dimmer switch device, comprises main control module (1); The communication module (2) being connected with main control module (1); What be connected with communication module (2) is host computer (3); The key-press module (4) being connected with main control module (1); The display module (5) being connected with main control module (1); The driver module (6) being connected with main control module (1); The LED lamp plate (7) that driver module (6) is connected; The power module (8) being connected with main control module (1).
What described main control module (1) was selected is ATmega16 single-chip minimum system module, for the processing of information.
What described communication module (2) was selected is RS485 serial communication, with host computer group-net communication.
Described host computer (3) is common PC.
Described key-press module (4), for the instruction of input requirements, for the instruction of input requirements, has four buttons, is respectively that mode switching key, step value switch key, stepping add key, stepping subtracts key, and mode switching key can switch 6 kinds of illumination patterns fast.
6 kinds of illumination patterns, are respectively:
Pattern one: lamp goes out entirely
Pattern two: lamplight brightness 18%, the about 2000LUX of brightness
Pattern three: lamplight brightness 22%, the about 2500LUX of brightness
Pattern four: lamplight brightness 27%, the about 3000LUX of brightness
Pattern five: lamplight brightness 32%, the about 3500LUX of brightness
Pattern six: lamplight brightness 36%, the about 4500LUX of brightness
Step value switch key can be set 4 kinds of step-by-step systems, is respectively stepping 1,5,10,20.Press stepping and add key, illumination adds according to the stepping of setting, and presses stepping and subtracts key, and illumination subtracts according to the stepping of setting.
Described display module (5) adopts 12864 LCDs, the demonstration of corresponding numerical value during for pattern is switched, step value switches, stepping adds, stepping subtracts button operation, and the demonstration of current brightness percentage and real-time time.
What described driver module (6) was selected is that the LED constant-flow driver that DD311 single channel is exported is to aim at the chip that drives great power LED and design, for driving LED lamp plate.
The LED lamp plate that described LED lamp plate (7) is comprised of 600 LED lamp.
Described power module (8) adopts LM2576 series switch integrated regulator as the core devices of ATmega16 single-chip microcomputer stabilized voltage power supply.
Accompanying drawing explanation
Fig. 1 is composition frame chart of the present invention;
Fig. 2 is main control module circuit diagram of the present invention;
Fig. 3 is communication module circuit diagram of the present invention;
Fig. 4 is driver module circuit diagram of the present invention;
Fig. 5 is key-press module circuit diagram of the present invention;
Fig. 6 display module circuit diagram of the present invention;
Fig. 7 is power module circuitry figure of the present invention;
Embodiment
Below in conjunction with accompanying drawing and example, the invention will be further described.
As shown in Figure 1, Control on Communication LED desk lamp with dimmer switch device of the present invention, adopt the unified LED of adjusting lamp plate the method for brightness control, comprise main control module (1); The communication module (2) being connected with main control module (1); What be connected with communication module (2) is host computer (3); The key-press module (4) being connected with main control module (1); The display module (5) being connected with main control module (1); The driver module (6) being connected with main control module (1); The LED lamp plate (7) that driver module (6) is connected; The power module (8) being connected with main control module (1).
As shown in Figure 2, described main control module adopts low-power consumption microcontroller ATmega16 single-chip microcomputer, according to the instruction of key-press module input, calls corresponding program and unifies regulation and control, makes the brightness of LED lamp group reach even.
As shown in Figure 3, described RS485 serial communication, it for host computer group-net communication, reach the brightness that button not only can be controlled LED lamp plate, host computer also can be controlled the brightness of LED lamp plate.
As shown in Figure 4, what described driver module circuit diagram was selected is DD311LED constant-flow driver, and DD311 is the LED constant-flow driver of a single channel output, and built-in current mirror and current switch assembly are to aim at the chip that drives great power LED and design.DD311 can drive the Shen up to 1 ampere to enter electric current (sink current), and ((IRE F) sets arbitrarily the size of output current can to see through adjustment reference input electric current.Output current value is about the IREF of 100 times, and IREF can by adjusting plug-in resistance or bias voltage, ((bias) voltage be set.Fine setting or the brightness enabling between bias voltage recoverable LED differ or realize overall brightness between plurality of LEDs and adjust simultaneously.The output of chip can bear the voltage up to 36V, supports the serial connection application of many great power LEDs.((Enable) can realize the high gray application of great power LED to built-in output enable end easily.For driving LED lamp plate.
As shown in Figure 5, described key-press module is comprised of 4 buttons, for mode switching key, step value switch key, stepping add key, stepping subtracts key.
Mode switching key can switch 6 kinds of illumination patterns fast, by once just once switching six kinds of patterns of illumination, and can cycling.
6 kinds of illumination patterns, are respectively:
Pattern one: lamp goes out entirely
Pattern two: lamplight brightness 18%, the about 2000LUX of brightness
Pattern three: lamplight brightness 22%, the about 2500LUX of brightness
Pattern four: lamplight brightness 27%, the about 3000LUX of brightness
Pattern five: lamplight brightness 32%, the about 3500LUX of brightness
Pattern six: lamplight brightness 36%, the about 4500LUX of brightness
(because environment is different, brightness is as the criterion with actual measured value)
Step value switch key can be set 4 kinds of step-by-step systems, is respectively stepping 1,5,10,20.Press stepping and add key, illumination adds according to the stepping of setting, and presses stepping and subtracts key, and illumination subtracts according to the stepping of setting.
As shown in Figure 6, described display module adopts 12864 LCDs, the demonstration of corresponding numerical value when adding key, stepping and subtract key operation for mode switching key, step value switch key, stepping, and be that current brightness percentage and real-time time show, user friendly observation.
As shown in Figure 7, described power module circuitry figure LM2576 series switch integrated regulator provides power supply for whole control core system.
LED dimming lamp of the present invention is direct current 24V power supply, after switching on power, LCD display shows that computer is controlled and manually controls two kinds of control modes, under manual control mode, can select 6 kinds of brightness by mode selecting key, also can regulate stepping step number by stepping key, realize the fine adjustment of brightness; Under computer control model, can control light fixture by host computer, system has RS485 communication interface, can connect at most 256 lamp groups, with host computer group-net communication, communication protocol is: address+brightness, as: host computer sends 0X030X7F, and the lamp plate brightness that address is 03 becomes 50%.
Claims (4)
1. a LED desk lamp with dimmer switch device, has main control module (1); It is characterized in that, also comprise the communication module (2) being connected with main control module (1); What be connected with communication module (2) is host computer (3); The key-press module (4) being connected with main control module (1); The display module (5) being connected with main control module (1); The driver module (6) being connected with main control module (1); The LED lamp plate (7) that driver module (6) is connected; The power module (8) being connected with main control module (1).
2. LED desk lamp with dimmer switch device according to claim 1, it is characterized in that: described key-press module is for the instruction of input requirements, having four buttons, is respectively that mode switching key, step value switch key, stepping add key, stepping subtracts key, and mode switching key can switch 6 kinds of illumination patterns fast.
6 kinds of illumination patterns, are respectively:
Pattern one: lamp goes out entirely
Pattern two: lamplight brightness 18%, the about 2000LUX of brightness
Pattern three: lamplight brightness 22%, the about 2500LUX of brightness
Pattern four: lamplight brightness 27%, the about 3000LUX of brightness
Pattern five: lamplight brightness 32%, the about 3500LUX of brightness
Pattern six: lamplight brightness 36%, the about 4500LUX of brightness
Step value switch key can be set 4 kinds of step-by-step systems, is respectively stepping 1,5,10,20.Press stepping and add key, illumination adds according to the stepping of setting, and presses stepping and subtracts key, and illumination subtracts according to the stepping of setting.
3. LED desk lamp with dimmer switch device according to claim 1, it is characterized in that: described display module adopts 12864 LCDs, the demonstration of corresponding numerical value during for pattern is switched, step value switches, stepping adds, stepping subtracts button operation, and the demonstration of current brightness percentage and real-time time.
4. LED desk lamp with dimmer switch device according to claim 1, is characterized in that: what described driver module was selected is that the LED constant-flow driver that DD311 single channel is exported is to aim at the chip that drives great power LED and design, for driving LED lamp plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310538837.7A CN103533722A (en) | 2013-10-31 | 2013-10-31 | LED dimming lamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310538837.7A CN103533722A (en) | 2013-10-31 | 2013-10-31 | LED dimming lamp device |
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| Publication Number | Publication Date |
|---|---|
| CN103533722A true CN103533722A (en) | 2014-01-22 |
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| CN201310538837.7A Pending CN103533722A (en) | 2013-10-31 | 2013-10-31 | LED dimming lamp device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990225A (en) * | 2018-02-05 | 2018-05-04 | 天津职业技术师范大学 | A kind of LED medicine illumination test platform |
| CN108449849A (en) * | 2018-06-12 | 2018-08-24 | 常州信息职业技术学院 | Tetra- color LED mixed light experimental systems of RGBW |
| CN108601153A (en) * | 2018-06-12 | 2018-09-28 | 常州信息职业技术学院 | Tetra- color LED mixed light control methods of RGBW |
| CN111314580A (en) * | 2018-12-11 | 2020-06-19 | 浙江宇视科技有限公司 | Light filling lamp and supervisory equipment |
| CN114071837A (en) * | 2020-08-07 | 2022-02-18 | 全汉企业股份有限公司 | Lighting power supply circuit with dimming function and control method thereof |
-
2013
- 2013-10-31 CN CN201310538837.7A patent/CN103533722A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990225A (en) * | 2018-02-05 | 2018-05-04 | 天津职业技术师范大学 | A kind of LED medicine illumination test platform |
| CN108449849A (en) * | 2018-06-12 | 2018-08-24 | 常州信息职业技术学院 | Tetra- color LED mixed light experimental systems of RGBW |
| CN108601153A (en) * | 2018-06-12 | 2018-09-28 | 常州信息职业技术学院 | Tetra- color LED mixed light control methods of RGBW |
| CN111314580A (en) * | 2018-12-11 | 2020-06-19 | 浙江宇视科技有限公司 | Light filling lamp and supervisory equipment |
| CN111314580B (en) * | 2018-12-11 | 2023-04-07 | 浙江宇视科技有限公司 | Light filling lamp and supervisory equipment |
| CN114071837A (en) * | 2020-08-07 | 2022-02-18 | 全汉企业股份有限公司 | Lighting power supply circuit with dimming function and control method thereof |
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Application publication date: 20140122 |