CN105744676B - A kind of LED light-dimming methods based on simple switch - Google Patents
A kind of LED light-dimming methods based on simple switch Download PDFInfo
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- CN105744676B CN105744676B CN201610119324.6A CN201610119324A CN105744676B CN 105744676 B CN105744676 B CN 105744676B CN 201610119324 A CN201610119324 A CN 201610119324A CN 105744676 B CN105744676 B CN 105744676B
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- led light
- light source
- switch
- brightness
- dimming
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention discloses a kind of LED light-dimming methods based on simple switch, including：Circuit is controlled to obtain continuous shutdown signal and enabling signal, driving LED light source enters light-modulating mode and determines operating brightness.Using the present invention, light-adjusting module can be then allowed to carry out dimming function by the action of the "Off" and "ON" of controlling switch, user is set to obtain required lamplight brightness, LED dimming modes are made to become more simple, practical, the flexibly and conveniently property of LED light source is greatly increased, making the function of LED light source has substantial lifting.
Description
Technical field
The present invention relates to LED light source technical field, more particularly to a kind of LED light-dimming methods based on simple switch.
Background technology
LED is referred to as forth generation lighting source or green light source, the features such as with energy-saving and environmental protection, long lifespan, small volume,
It is widely used in the fields such as various instructions, display, decoration, backlight, general lighting and urban landscape.
As LED industry is quickly grown, people are to illumination control of product requirement also more and more higher.Meanwhile, in order to adapt to reality
Border produce and economize on electricity the need for, LED lamp or LED light source usually require light modulation, the realization of light adjusting circuit, not only save electric energy,
Reduction is wasted, and is worked for a long time under overload state while also avoid LED, is improved LED operational efficiency and the life-span.
At present, the existing part LED lamp of in the market or LED light source carry dimming function, and its dimming mode includes：
（1）Controllable silicon light modulation.This dimming mode needs special LED lamp customized and special install to coordinate controllable silicon light modulation
The turn-knob switch of mode, dimming mode is bothered very much.
（2）Remote control switch is dimmed.The light modulation driving that this dimming mode needs to install in LED lamp and remote control is supporting
Device, dimming driver and remote control are with the use of that could be dimmed, and this dimming mode can not be real if no remote control
Now dim.
Accordingly, it would be desirable to which it is more simple to design a kind of control mode, more convenient, flexible dimming mode is operated to meet use
The demand at family.
The content of the invention
The technical problems to be solved by the invention are that, there is provided a kind of LED light-dimming methods based on simple switch, can pass through
The action of the "Off" and "ON" of controlling switch, allows light-adjusting module to carry out Dimming operation.
In order to solve the above-mentioned technical problem, the invention provides a kind of LED light-dimming methods based on simple switch, including tool
There are LED light source, the controlling switch with switching function and the control circuit of dimming function, the LED based on simple switch is adjusted
Light method includes：Circuit is controlled to obtain continuous shutdown signal and enabling signal, driving LED light source enters light-modulating mode and determined
Operating brightness.
As the improvement of such scheme, the control circuit obtains continuous shutdown signal and enabling signal, drives LED light
Source enters light-modulating mode and determines that the method for operating brightness includes：Control circuit obtains continuous shutdown signal and starts letter successively
Number, driving LED light source is closed and opened successively；If in the handoff procedure of shutdown signal and enabling signal, real-time parameter is in pre-
If in scope, then entering the second mode of operation after LED light source is opened, now, the brightness of LED light source gradually becomes according to predetermined manner
Change；Otherwise, the first mode of operation is entered after LED light source is opened, now, LED light source works in predetermined luminance state.
As the improvement of such scheme, the predetermined manner includes gradually being decremented to minimum brightness by maximum brightness or by most
Low-light level is gradually incremented to maximum brightness.
As the improvement of such scheme, when LED light source is in the second mode of operation, control circuit obtains continuous pass successively
Signal and enabling signal are closed, driving LED light source is closed and opened successively；If in the handoff procedure of shutdown signal and enabling signal,
Real-time parameter is in preset range, then enters the 3rd mode of operation after LED light source is opened, now, LED light source works in one
The luminance state of LED light source during secondary closing LED light source；Otherwise, the first mode of operation, now, LED are entered after LED light source is opened
Light source works are in predetermined luminance state.
As the improvement of such scheme, the real-time parameter is the time interval between shutdown signal and enabling signal.
As the improvement of such scheme, the preset range is 0 ~ 2 second, but the preset range can also be according to different
Demand carries out different preset.
As the improvement of such scheme, during the real-time parameter is the handoff procedure of shutdown signal and enabling signal, control
The state parameter of any electric elements in circuit.
As the improvement of such scheme, the state parameter includes performance number, capacitance, magnitude of voltage or current value.
As the improvement of such scheme, the minimum brightness is the 1% ~ 15% of maximum brightness.
As the improvement of such scheme, the controlling switch includes pullswitch, knife switch, button switch, microwave control
Make switch, radio frequency controlled switch, audio-switch or infrared switch.
Implement the present invention, have the advantages that：
The LED light-dimming methods based on simple switch of the present invention will control circuit and existing LED light source and controlling switch phase
With reference to according to modes such as time control, capacitor charge and discharges, LED can be then allowed by the action of the "Off" and "ON" of controlling switch
The light-adjusting module of light source is dimmed, and user is obtained required lamplight brightness, LED dimming modes is become more simple, real
With greatly increasing the flexibly and conveniently property of LED light source, making the function of LED light source has substantial lifting.
Brief description of the drawings
Fig. 1 is the first embodiment flow chart of the LED light-dimming methods of the invention based on simple switch；
Fig. 2 is the circuit diagram of control circuit in the LED light-dimming methods of the invention based on simple switch；
Fig. 3 is the second embodiment flow chart of the LED light-dimming methods of the invention based on simple switch；
Fig. 4 is the operation instruction figure of the LED light-dimming methods of the invention based on simple switch；
Fig. 5 is the LED bulb in the LED light-dimming methods of the invention based on simple switch；
Fig. 6 is the desk lamp in the LED light-dimming methods of the invention based on simple switch；
Fig. 7 is the floor-lamp in the LED light-dimming methods of the invention based on simple switch；
Fig. 8 is the pendent lamp in the LED light-dimming methods of the invention based on simple switch；
Fig. 9 is the wall lamp in the LED light-dimming methods of the invention based on simple switch；
Figure 10 is the lamp affixed to the ceiling in the LED light-dimming methods of the invention based on simple switch；
Figure 11 is the Recessed light in the LED light-dimming methods of the invention based on simple switch.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
It is described in detail on step ground.Only this is stated, the side such as the up, down, left, right, before and after of the invention that occurs in the text or will appear from, inside and outside
Position word, only on the basis of the accompanying drawing of the present invention, it is not the specific restriction to the present invention.
In the LED light-dimming methods based on simple switch of the present invention, including the LED light source with dimming function, with opening
Close（ON/OFF）The controlling switch and control circuit of function.Wherein, LED light source can be LED bulb（Referring to Fig. 5, such as model
E27-PAR30、E27-PAR38、E27-G125、E27-G95、E27-G45、E27-G60、E27-G80、GU10、E14-G45、
E14）, shot-light, desk lamp（Referring to Fig. 6）, floor-lamp（Referring to Fig. 7）, pendent lamp（Referring to Fig. 8）, wall lamp（Referring to Fig. 9）, lamp affixed to the ceiling（Referring to
Figure 10）Or Recessed light（Referring to Figure 11）, but it is not limited system；The controlling switch can be pullswitch, knife switch, button
The mechanical switch such as switch, can also be microwave control switch, radio frequency controlled switch, audio-switch or infrared switch, but not with this
To limit, as long as the controlling switch with open and close function；The control circuit can be integrated in the control of LED light source
It in chip, can also be integrated in driver, can also be independent control chip, for gathering LED light source and controlling switch
Real-time status.
LED light-dimming methods of the invention based on simple switch include：Circuit is controlled to obtain continuous shutdown signal and startup
Signal, driving LED light source enters light-modulating mode and determines operating brightness.
It should be noted that as long as the action for the "Off" and "ON" for passing through simple switch allows LED light source to proceed by tune
Light, and the action of "Off" by simple switch and "ON" come select the light-dimming method of the LED light source brightness needed be all this specially
The protection domain of profit.
Fig. 1 is the first embodiment flow chart of the LED light-dimming methods of the invention based on simple switch, including：
S101, control circuit obtains continuous shutdown signal and enabling signal successively, and driving LED light source is closed and opened successively
Open.
S102, if in the handoff procedure of shutdown signal and enabling signal, real-time parameter is in preset range, then LED light
Source enters the second mode of operation after opening, and now, the brightness of LED light source is gradually changed according to predetermined manner.
It should be noted that the predetermined manner can be " being gradually decremented to minimum brightness by maximum brightness ", can be with
For " being gradually incremented to maximum brightness by minimum brightness ", but system is not limited, as long as LED light source can be made by certain rule
Brightness change.
The minimum brightness is the 1% ~ 15% of maximum brightness.
S103, if in the handoff procedure of shutdown signal and enabling signal, real-time parameter is not in preset range, then LED
Light source enters the first mode of operation after opening, and now, LED light source works in predetermined luminance state.
It should be noted that the predetermined luminance state can be maximum brightness state or minimum brightness state, but not with
This is limitation, as long as LED light source can be made to work in a certain specific luminance state.
Generally, in the first mode of operation LED light source predetermined luminance, be generally preset as most bright state（I.e.
100% brightness）, but system is not limited, can also be according to default different brightness the need for user.
From the foregoing, it will be observed that the LED light-dimming methods based on simple switch of the present invention will control circuit and existing LED light source and control
Switch processed is combined, and LED dimming modes is become more simple, practical, is greatly increased LED light source flexibly and conveniently
Property, making the function of LED light source has substantial lifting.
Specifically, the real-time parameter can be the time interval between shutdown signal and enabling signal, the default model
Enclose for 0 ~ 2 second.
For example, pressing button switch is to open during LED light source for the first time by user, LED light source enters the first mode of operation, this
When, the brightness of LED light source is 100%.If desired change the luminosity of LED light source, then need continuous pressing button switch twice,
LED light source is set to restart after closing, while need to ensure that the light modulation recognition time between turning off the light and turning on light is 0 ~ 2 second, LED light source is just
The second mode of operation can be entered, now, the brightness of LED light source is gradually decremented to minimum brightness, final LED light source by maximum brightness
Brightness be maximum brightness 10%.If wanting the brightness for making LED return to 100%, need to close after LED light source, cross 2
Second, it is then turned on LED light source.
In addition, the real-time parameter can also be in the handoff procedure of shutdown signal and enabling signal, to appoint in control circuit
The state parameter of one electric elements.The state parameter includes performance number, capacitance, magnitude of voltage or current value.
For example, with reference to Fig. 2, user for the first time pressing button switch to open during LED light source, L on N input first times
Electricity, C3 electric capacity charges to normal operational voltage value, and LED light source enters the first mode of operation, and now, the brightness of LED light source is
100%.When user presses button switch to cut off the electricity supply, C3 starts electric discharge, while the voltage on C5 is begun to decline, when C3 electricity
Pressure is less than C5 voltages and 1.8V<C5<During 4.8V, button switch startup power supply is re-pressed, LED light source will enter the second work
Pattern, now, the brightness of LED light source are gradually decremented to minimum brightness by maximum brightness, and the brightness of final LED light source is most highlighted
The 10% of degree.If power supply segment overlong time, makes C5<1.8V, then when next time restarts power supply, LED light source recovers to the first work
Pattern.
It should be noted that the state parameter in the present embodiment only using C3 and C5 is as basis for estimation, but it is not limited
The state parameter of any electric elements in control circuit is can select in system, practical application as basis for estimation, as long as closing letter
Number with the handoff procedure of enabling signal, the state parameter of electric elements can change.
Fig. 3 is the second embodiment flow chart of the LED light-dimming methods of the invention based on simple switch, including：
S201, control circuit obtains continuous shutdown signal and enabling signal successively, and driving LED light source is closed and opened successively
Open.
S202, if in the handoff procedure of shutdown signal and enabling signal, real-time parameter is in preset range, then LED light
Source enters the second mode of operation after opening, and now, the brightness of LED light source is gradually changed according to predetermined manner.
It should be noted that the predetermined manner can be " being gradually decremented to minimum brightness by maximum brightness ", can be with
For " being gradually incremented to maximum brightness by minimum brightness ", but system is not limited, as long as LED light source can be made by certain rule
Brightness change.
The minimum brightness is the 5% ~ 15% of maximum brightness.
S203, if in the handoff procedure of shutdown signal and enabling signal, real-time parameter is not in preset range, then LED
Light source enters the first mode of operation after opening, and now, LED light source works in predetermined luminance state.
It should be noted that the predetermined luminance state can be maximum brightness state or minimum brightness state, but not with
This is limitation, as long as LED light source can be made to work in a certain specific luminance state.
S204, when LED light source is in the second mode of operation, control circuit obtains continuous shutdown signal and starts letter successively
Number, is closed and opened successively to driving LED light source
S205, if in the handoff procedure of shutdown signal and enabling signal, real-time parameter is in preset range, then LED light
Source enters the 3rd mode of operation after opening, now, and LED light source works in the brightness shape of last LED light source when closing LED light source
State；
S206, if in the handoff procedure of shutdown signal and enabling signal, real-time parameter is not in preset range, then LED
Light source enters the first mode of operation after opening, and now, LED light source works in predetermined luminance state.
It should be noted that the predetermined luminance state can be maximum brightness state or minimum brightness state, but not with
This is limitation, as long as LED light source can be made to work in a certain specific luminance state.
Specifically, the real-time parameter can be the time interval between shutdown signal and enabling signal, the default model
Enclose for 0 ~ 2 second.
For example, with reference to Fig. 4, pressing button switch is to open during LED light source for the first time by user, and LED light source enters the first work
Operation mode, now, the brightness of LED light source is 100%.If desired change the luminosity of LED light source, then need continuous pressing twice
Button switch, makes LED light source restart after closing, while need to ensure that the light modulation recognition time between turning off the light and turning on light is 0 ~ 2 second,
LED light source will enter the second mode of operation, the brightness of LED light source is gradually successively decreased from maximum brightness to minimum brightness, now,
If desired adjust brightness, then need to be continuous again to press button switch twice in descending luminance to the required brightness of LED light source,
LED light source is set to restart after closing, while need to ensure that the light modulation recognition time between turning off the light and turning on light is 0 ~ 2 second, LED light source is just
The 3rd mode of operation can be entered, LED light source is worked in the luminance state of last LED light source when closing LED light source, so as to protect
The brightness of card LED light source is fixed on the brightness needed for user, realizes non-pole light regulating.If want to make LED return to 100% it is bright
Degree, then need to close after LED light source, spend 2 seconds, be then turned on LED light source.
In addition, the real-time parameter can also be in the handoff procedure of shutdown signal and enabling signal, to appoint in control circuit
The state parameter of one electric elements.The state parameter includes performance number, capacitance, magnitude of voltage or current value.
For example, with reference to Fig. 2, user for the first time pressing button switch to open during LED light source, L on N input first times
Electricity, C3 electric capacity charges to normal operational voltage value, and LED light source enters the first mode of operation, and now, the brightness of LED light source is
100%.When user presses button switch to cut off the electricity supply, C3 starts electric discharge, while the voltage on C5 is begun to decline, when C3 electricity
Pressure is less than C5 voltages and 1.8V<C5<During 4.8V, button switch startup power supply is re-pressed, LED light source will enter the second work
Pattern, makes the brightness of LED light source gradually successively decrease from maximum brightness to minimum brightness, now, if without any operation, LED light
The brightness in source will gradually be decremented to minimum brightness, and the brightness of final LED light source is the 10% of maximum brightness, is if desired adjusted bright
Degree, then need to be continuous again to press button switch twice in descending luminance to the required brightness of LED light source, closes LED light source
After restart, while ensure C3 be less than C5 voltages and 1.8V<C5<4.8V, then LED light source will enter the 3rd mode of operation, make
LED light source works in the luminance state of last LED light source when closing LED light source, so as to ensure that the brightness of LED light source is fixed on
Brightness needed for user, realizes non-pole light regulating.If power supply segment overlong time, makes C5<1.8V, then when next time restarts power supply,
LED light source recovers to the first mode of operation.
From the foregoing, it will be observed that the LED light-dimming methods based on simple switch of the present invention will control circuit and existing LED light source and control
Switch processed is combined, and according to modes such as time control, capacitor charge and discharges, then may be used by the action of the "Off" and "ON" of controlling switch
With allow light-adjusting module carry out dimming function, make user obtain needed for lamplight brightness, make LED dimming modes become it is more simple,
Practicality, greatly increases the flexibly and conveniently property of LED light source, and making the function of LED light source has substantial lifting.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of LED light-dimming methods based on simple switch, it is characterised in that including the LED light source with dimming function, have
The controlling switch and control circuit of switching function, the LED light-dimming methods based on simple switch include：Control circuit to obtain to connect
Continuous shutdown signal and enabling signal, driving LED light source enters light-modulating mode and determines operating brightness；
The control circuit obtains continuous shutdown signal and enabling signal, and driving LED light source enters light-modulating mode and determines work
Making the method for brightness includes：Control circuit obtains continuous shutdown signal and enabling signal successively, and driving LED light source is closed successively
And open；If in the handoff procedure of shutdown signal and enabling signal, real-time parameter is in preset range, then LED light source is opened
Enter the second mode of operation afterwards, now, the brightness of LED light source is gradually changed according to predetermined manner；Otherwise, after LED light source is opened
Into the first mode of operation, now, LED light source works in predetermined luminance state；
When LED light source is in the second mode of operation, control circuit obtains continuous shutdown signal and enabling signal successively, drives
LED light source is closed and opened successively；If in the handoff procedure of shutdown signal and enabling signal, real-time parameter is in preset range
It is interior, then enter the 3rd mode of operation after LED light source is opened, now, LED light source works in last LED light when closing LED light source
The luminance state in source；Otherwise, the first mode of operation is entered after LED light source is opened, now, LED light source works in predetermined luminance shape
State.
2. the LED light-dimming methods as claimed in claim 1 based on simple switch, it is characterised in that the predetermined manner includes
Minimum brightness is gradually decremented to by maximum brightness or maximum brightness is gradually incremented to by minimum brightness.
3. the LED light-dimming methods as claimed in claim 1 based on simple switch, it is characterised in that the real-time parameter is pass
The time interval closed between signal and enabling signal.
4. the LED light-dimming methods as claimed in claim 3 based on simple switch, it is characterised in that the preset range is 0 ~ 2
Second.
5. the LED light-dimming methods as claimed in claim 1 based on simple switch, it is characterised in that the real-time parameter is pass
In the handoff procedure for closing signal and enabling signal, the state parameter of any electric elements in control circuit.
6. the LED light-dimming methods as claimed in claim 5 based on simple switch, it is characterised in that the state parameter includes
Performance number, capacitance, magnitude of voltage or current value.
7. the LED light-dimming methods as claimed in claim 2 based on simple switch, it is characterised in that the minimum brightness is most
The 1% ~ 15% of high brightness.
8. the LED light-dimming methods as claimed in claim 1 based on simple switch, it is characterised in that the controlling switch includes
Pullswitch, knife switch, button switch, microwave control switch, radio frequency controlled switch, audio-switch or infrared switch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062135X | 2016-01-29 | ||
| CN201610062135 | 2016-01-29 |
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| Publication Number | Publication Date |
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| CN105744676B true CN105744676B (en) | 2017-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109275251A (en) * | 2018-10-30 | 2019-01-25 | 温州市麦特力克电器有限公司 | Light adjusting circuit and lighting device |
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| CN106304479A (en) * | 2016-08-19 | 2017-01-04 | 唐晓云 | A kind of intelligent lighting switching LED color lamp of microcomputerized control |
| CN106612577B (en) * | 2016-12-23 | 2018-08-10 | 浙江大学 | A kind of power switch degree of lightening LED light controller and its control method |
| CN106793295B (en) * | 2016-12-23 | 2019-03-01 | 浙江大学 | A kind of microcontroller power supply switch lightens LED light Switching Power Supply and its control method |
| CN107135571B (en) * | 2017-05-12 | 2019-03-19 | 浙江生辉照明有限公司 | Intelligent lamp |
| WO2019222920A1 (en) * | 2018-05-22 | 2019-11-28 | 深圳市杜莎科技有限公司 | Single-chip microcomputer controlled light tuning method and system based on on-off input |
| CN109548231A (en) * | 2018-10-26 | 2019-03-29 | 惠州市华阳光电技术有限公司 | A kind of switch dimming method based on memory |
| CN110505738B (en) * | 2019-08-06 | 2021-07-23 | 江苏富联通讯技术有限公司 | Intelligent control system for adjusting lamp brightness according to switching time interval |
| CN111526628B (en) * | 2020-06-23 | 2024-01-19 | 横店集团得邦照明股份有限公司 | Circuit for changing light state through flashlight of mobile phone and implementation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202014402U (en) * | 2011-03-23 | 2011-10-19 | 深圳市英格瑞特电子有限公司 | Light-emitting diode light adjusting device, lamp and light adjusting system |
| JP2014026954A (en) * | 2012-07-26 | 2014-02-06 | O2 Micro Inc | Circuit and method for driving light source |
| CN103068123A (en) * | 2012-12-25 | 2013-04-24 | 生迪光电科技股份有限公司 | Light emitting diode (LED) lamp with illumination intensity adjustable |
| CN203176790U (en) * | 2013-01-25 | 2013-09-04 | 东莞市纳川盈海照明有限公司 | LED lamp with light-adjusting function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109275251A (en) * | 2018-10-30 | 2019-01-25 | 温州市麦特力克电器有限公司 | Light adjusting circuit and lighting device |
| CN109275251B (en) * | 2018-10-30 | 2021-02-09 | 温州市麦特力克电器有限公司 | Light modulation circuit and lighting device |
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