CN102316646A - Light-emitting diode (LED) dimming method - Google Patents
Light-emitting diode (LED) dimming method Download PDFInfo
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- CN102316646A CN102316646A CN201110270193A CN201110270193A CN102316646A CN 102316646 A CN102316646 A CN 102316646A CN 201110270193 A CN201110270193 A CN 201110270193A CN 201110270193 A CN201110270193 A CN 201110270193A CN 102316646 A CN102316646 A CN 102316646A
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Abstract
The invention provides a light-emitting diode (LED) dimming method, which supplies electricity to a digital processing circuit unit through an energy storage circuit unit so that after a power supply switch is switched off, the digital processing circuit unit can also work for a period of time, switch signals of a power supply can be detected and obtained, the digital processing circuit unit can control the brightness of an LED unit to be periodically and continuously changed according to the switch signals, in addition, the required LED brightness can be selected and locked through switching on or off the power supply switch for a second time, the continuous dimming is realized, the realization is simple and convenient, the dimming can be conveniently realized without additionally adding a dimming device, and high practicability is realized.
Description
Technical field
The present invention relates to the LED lighting technical field, relate in particular to a kind of LED light-dimming method.
Background technology
LED (Light Emitting Diode) also claims light-emitting diode, is a kind of solid-state semiconductor device, and it can directly be converted into light to electricity.LED has advantages such as the little environmental protection of power consumption, long service life, and LED has progressively replaced traditional incandescent lamp at present.
The LED light regulating technology is an important technology that occurs in the evolution of LED lighting technology, can make the LED illumination obtain the brightness of expection through light modulation, also can further realize energy-saving and emission-reduction.Existing LED light-dimming method mainly contains following several kinds:
1) compatible traditional controllable silicon light modulation scheme needs to use the controllable silicon light modulation device, and is compatible with old incandescent lamp light modulation scheme.
2) light modulation of segmented switch utilizes regular tap, and switch is realized different segmentation brilliance controls successively.
3) distance type light modulation utilizes remote controller to send dim signal, and the receiver in the light fixture obtains signal, thereby further conducts the control information of light modulation.
4) time period control light modulation utilizes the time timing, control light modulation at times.
5) light sensor control light modulation mainly realizes the light control under lamp different light rays environment day and night.
Yet above-mentioned light-dimming method all need install comparatively complex devices additional in existing led circuit, and complex operation can't be realized continuous light tuning, and implementation procedure is comparatively complicated, and practicality is little.
Summary of the invention
The objective of the invention is to, a kind of LED light-dimming method is provided, its realization is simple and convenient, need not the extra light modulating device that installs additional and just can realize the LED continuous light tuning.
To achieve these goals, the present invention provides a kind of LED light-dimming method, and it comprises the steps:
Said accumulator unit and power supply electrically connect.
Said control signal is a pwm signal.
In the said step 3, this LED unit brightness is by weak gradual change by force, change continuously by being gradient to weak periodicity by force again.
Beneficial effect of the present invention: the present invention provides a kind of LED light-dimming method, and it is the power supply of digital processing circuit unit through the accumulator unit, make that mains switch is closed after; Digital processing circuit unit further work a period of time; Thereby detect and obtain the switching signal of power supply, make the digital processing circuit unit control the brightness of LED unit and be variation periodically continuously, and select and lock required LED brightness through the switch once more of mains switch according to switching signal; Realize continuous light modulation; Realize simple and conveniently, need not the extra light modulating device that installs additional and just can conveniently realize light modulation having advantages of high practicability.
In order further to understand characteristic of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only provide reference and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Below in conjunction with accompanying drawing, describe in detail through specific embodiments of the invention, will make technical scheme of the present invention and other beneficial effect obvious.
In the accompanying drawing,
Fig. 1 is the schematic flow sheet of LED light-dimming method of the present invention;
Fig. 2 is the principle schematic of LED light-dimming method of the present invention;
The preferred embodiment sketch map that Fig. 3 uses for LED light-dimming method of the present invention.
Embodiment
Technological means and the effect thereof taked for further setting forth the present invention are described in detail below in conjunction with the preferred embodiments of the present invention and accompanying drawing thereof.
Shown in Fig. 1-3, the present invention provides a kind of LED light-dimming method, and it comprises the steps:
The present invention can realize continuous light tuning through the accumulator unit 50 that on mains switch 40 that is provided with between led circuit module 100 and the power supply 30 and digital processing circuit unit 10, is provided with, and need not the extra light modulating device that installs additional, realizes simple and convenient.
In sum, the present invention provides a kind of LED light-dimming method, and it is the power supply of digital processing circuit unit through the accumulator unit; After making that mains switch is closed, digital processing circuit unit further work a period of time, thus detect and obtain the switching signal of power supply; Make the digital processing circuit unit control the brightness of LED unit and be variation periodically continuously according to switching signal; And select and lock required LED brightness through the switch once more of mains switch, and realize continuous light modulation, realize simple and convenient; Need not the extra light modulating device that installs additional and just can conveniently realize light modulation having advantages of high practicability.
The above for the person of ordinary skill of the art, can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection range of claim of the present invention.
Claims (4)
1. a LED light-dimming method is characterized in that, comprises the steps:
Step 1, a led circuit module is provided; It comprises the digital processing circuit unit and the LED unit of mutual electric connection; This led circuit module is through power supply power supply; Between power supply and the led circuit module mains switch is set, this digital processing circuit unit electrically connects an accumulator unit;
Step 2, powered-down switch, digital processing circuit unit detect the digital processing circuit unit next time and write down and closed signal by accumulator unit powered operation before mains switch is opened;
Step 3, turn on the power switch; The digital processing circuit unit is by power supply power supply and detect the signal of opening of mains switch, and the digital processing circuit unit produces control signal according to detected switching signal and the brightness of LED unit is periodically continuously change simultaneously;
Step 4, the brightness in the LED unit are and periodically continuously change powered-down switch when reaching the brightness of required LED unit; The digital processing circuit unit detects the digital processing circuit unit next time and writes down and closed signal by accumulator unit powered operation before mains switch is opened;
Step 5, turn on the power switch; The digital processing circuit unit is by power supply power supply and detect the signal of opening of mains switch; The digital processing circuit unit produces control signal corresponding according to detected switching signal and realizes illumination to select and to lock required LED unit brightness simultaneously, accomplishes the LED light modulation.
2. LED light-dimming method as claimed in claim 1 is characterized in that, said accumulator unit and power supply electrically connect.
3. LED light-dimming method as claimed in claim 1 is characterized in that, said control signal is a pwm signal.
4. LED light-dimming method as claimed in claim 1 is characterized in that, in the said step 3, this LED unit brightness is by weak gradual change by force, change continuously by being gradient to weak periodicity by force again.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201110270193A CN102316646A (en) | 2011-09-13 | 2011-09-13 | Light-emitting diode (LED) dimming method |
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CN201110270193A CN102316646A (en) | 2011-09-13 | 2011-09-13 | Light-emitting diode (LED) dimming method |
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CN102316646A true CN102316646A (en) | 2012-01-11 |
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CN201110270193A Pending CN102316646A (en) | 2011-09-13 | 2011-09-13 | Light-emitting diode (LED) dimming method |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103428937A (en) * | 2012-05-16 | 2013-12-04 | 上海占空比电子科技有限公司 | Control device and method of dimming switch |
CN108696968A (en) * | 2018-07-12 | 2018-10-23 | 宁波升谱光电股份有限公司 | A kind of light modulation/shading process for lamps and lanterns |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101621878A (en) * | 2008-07-03 | 2010-01-06 | 林焕博 | Light-adjusting driving device and method |
CN201733481U (en) * | 2010-05-06 | 2011-02-02 | 东莞市翊晶光电科技有限公司 | LED bulb capable of mechanically adjusting light |
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2011
- 2011-09-13 CN CN201110270193A patent/CN102316646A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101621878A (en) * | 2008-07-03 | 2010-01-06 | 林焕博 | Light-adjusting driving device and method |
CN201733481U (en) * | 2010-05-06 | 2011-02-02 | 东莞市翊晶光电科技有限公司 | LED bulb capable of mechanically adjusting light |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103428937A (en) * | 2012-05-16 | 2013-12-04 | 上海占空比电子科技有限公司 | Control device and method of dimming switch |
CN103428937B (en) * | 2012-05-16 | 2016-04-06 | 上海占空比电子科技有限公司 | A kind of control device of switch dimming and method |
CN108696968A (en) * | 2018-07-12 | 2018-10-23 | 宁波升谱光电股份有限公司 | A kind of light modulation/shading process for lamps and lanterns |
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Application publication date: 20120111 |