CN106879124A - Light adjusting circuit and light adjusting system - Google Patents
Light adjusting circuit and light adjusting system Download PDFInfo
- Publication number
- CN106879124A CN106879124A CN201710234563.0A CN201710234563A CN106879124A CN 106879124 A CN106879124 A CN 106879124A CN 201710234563 A CN201710234563 A CN 201710234563A CN 106879124 A CN106879124 A CN 106879124A
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- module
- light fixture
- light
- light adjusting
- power
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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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention discloses a kind of light adjusting circuit and light adjusting system, and wherein the light adjusting circuit includes processing module, memory module and drive module；Memory module, stores the luminance data of light fixture；Processing module, reads the luminance data in memory module after the power-up, exports corresponding light fixture drive signal to drive module；Drive module, drives light fixture to work in corresponding luminance according to light fixture drive signal.Technical solution of the present invention provides a kind of light adjusting circuit with memory function.
Description
Technical field
The present invention relates to lighting technical field, more particularly to a kind of light adjusting circuit and light adjusting system
Background technology
LED applications are divided into two major classes of display and illumination.Novel illumination with light emitting diode (LED) as light source, referred to as half
Conductor is illuminated, and abbreviation LED illumination, the industry based on semiconductor lighting is referred to as LED illumination industry.At home industrial policy and
Under the dual pulling of international market demand, the LED illumination product market of China is in accelerated development.At present, global LED production capacities to
China's transfer, the LED encapsulation and more than 60% LED applications in the whole world 50% or so are all carried out in China.China has turned into the whole world
The most fast region of semiconductor lighting industry development.
Different types of LED can send the light of different colours, with the improvement of people ' s living standards, LED illumination be wanted
Also more and more higher is sought, the LED illumination System that can adjust colour temperature is becoming increasingly popular.
Without memory function after current LED light adjusting system power down, if a LED lamp affixed to the ceiling has A, B two paths of LED lamp
Bar, system controls bright light order for A roads are bright according to the on-off times (i.e. LED lamp affixed to the ceilings power down number of times) of detection switch on wall, B roads
Bright, AB two-way is simultaneously bright.If user likes the bright colour temperatures of AB, every time for a long time after lower electricity, system does not have memory function, extensive
It is again that A roads are bright to initial state, is required to switch A roads by switch on wall, the simultaneously bright shape of AB two-way can be operated in after B roads
State.The state of the bright light of user's last time can not be remembered after existing light adjusting system power down so that user needs to cut after turning on light every time
Desired lighting lamp state is changed to, is operated relatively complicated.
The content of the invention
The main object of the present invention is to propose a kind of light adjusting circuit, it is desirable to provide a kind of light adjusting circuit with memory function.
To achieve the above object, light adjusting circuit proposed by the present invention, including processing module, memory module and drive module；
The memory module, stores the luminance data of light fixture；
The processing module, reads the luminance data in memory module after the power-up, exports corresponding light fixture and drives
Signal is to the drive module；
The drive module, drives light fixture to work in corresponding luminance according to the light fixture drive signal.
Preferably, the light adjusting circuit includes detection of power loss module, detection of power loss module detection light fixture whether power down,
Power-off signal is converted to transmit to the processing module.
Preferably, the processing module according to power-off signal judge light fixture whether power down, if light fixture is not in Preset Time
Power down, then be stored in memory module by the current luminance of light fixture.
Preferably, the processing module is according to power-off signal, power down number of times of the statistics light fixture in Preset Time, in power down
Number of times initializes memory module when reaching set point number.
Preferably, the light adjusting circuit also includes power supply module, and the power supply module is connected with the processing module；It is described
Processing module by the power supply module detect light fixture whether power down；If the non-power down of light fixture in Preset Time, by light fixture
Current luminance is stored in memory module.
Preferably, the memory module is connected with the processing module, the processing module also through the drive module with
The light fixture connection；The detection of power loss module is connected with the light fixture and the processing module respectively.
Preferably, the light adjusting circuit includes filtration module, and the filtration module is connected with the detection of power loss module, institute
Filtration module is stated also to be connected with the light fixture.
Preferably, the memory module is non-volatile storage.
The present invention proposes a kind of light adjusting system, and the light adjusting system is including at least one constant-current control module and as described above
Light adjusting circuit；The drive module, detection of power loss module are connected with the constant-current control module respectively, the current constant control mould
Block is also connected with light fixture.
Preferably, the light adjusting system also includes the first electric capacity of voltage regulation, and first electric capacity of voltage regulation carries out input power
Exported again after filtering voltage regulation to the constant-current control module and light fixture.
Technical solution of the present invention forms a kind of light adjusting circuit by setting processing module, memory module and drive module.
Be stored with the lamp luminescence color of user's preferences in the memory module, and after electricity on light adjusting circuit, processing module is just from memory
The data of luminance are read in module, drives light fixture to be directly entered the lamp luminescence pattern of user's preferences so that the behaviour of light fixture
Make more convenient, more humane.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is the functional block diagram of the embodiment of light adjusting circuit of the present invention；
Fig. 2 is the functional block diagram of the embodiment of light adjusting system of the present invention；
Fig. 3 is the flow chart of the embodiment of light-dimming method of the present invention.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Power supply module | U1 | Constant-current driven chip |
| 200 | Detection of power loss module | Rs | Current-limiting resistance |
| 300 | Memory module | Rv | First regulating resistor |
| 400 | Processing module | Rf | Second regulating resistor |
| 500 | Drive module | Cx | Second electric capacity of voltage regulation |
| 600 | Filtration module | C1 | First electric capacity of voltage regulation |
| 700 | Constant-current control module | Rx | Sampling resistor |
| 800 | Rectification module | K1 | Power switch |
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
If it is to be appreciated that related in the embodiment of the present invention directionality indicate (such as up, down, left, right, before and after ...),
Then directionality indicate to be only used for explain relative position relation between each part under a certain particular pose (as shown in drawings),
Motion conditions etc., if the particular pose changes, directionality indicates also correspondingly to change therewith.
If in addition, relating to the description of " first ", " second " etc. in the embodiment of the present invention, being somebody's turn to do " first ", " second " etc.
Description be only used for describing purpose, and it is not intended that indicating or implying its relative importance or implicit indicate indicated skill
The quantity of art feature.Thus, " first " is defined, at least one spy can be expressed or be implicitly included to the feature of " second "
Levy.In addition, the technical scheme between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
Based on enough realizations, when the combination appearance of technical scheme is conflicting or cannot realize it will be understood that the knot of this technical scheme
Conjunction does not exist, not within the protection domain of application claims yet.
The present invention proposes a kind of light adjusting circuit.In the present embodiment, the dimmer application is in lighting technical field.
In embodiments of the present invention, as shown in figure 1, the light adjusting circuit includes processing module 300, memory module 400 and drives
Dynamic model block 500；
The memory module 400, stores the luminance data of light fixture；The processing module 300, reads note after the power-up
Recall the luminance data in module 400, export corresponding light fixture drive signal to the drive module 500；The driving mould
Block 500, drives light fixture to work in corresponding luminance according to the light fixture drive signal.What deserves to be explained is, the treatment
Module 300 and memory module 400 can be integrated in a chip, such as single-chip microcomputer.Wherein, the memory module 400 is stored
There is the lamp luminescence color of user's preferences, when electricity is gone up again after long-time is powered off, user can be by once switch just can be direct
Into desired mode of operation.
It should be noted that in the present embodiment, the light fixture is LED, the LED includes multiple LED light bars, each LED
The first end of lamp bar is connected with the positive pole of power supply, one, second end switching tube (such as metal-oxide-semiconductor) of LED light bar and power cathode
Connection, the controlled end of the switching tube of each LED light bar is connected with the drive module 500 respectively.The output control of drive module 500
Waveform, the size of current for lighting, extinguishing and adjusting LED light bar for controlling LED light bar.
Technical solution of the present invention forms one kind by setting processing module 300, memory module 400 and drive module 500
Light adjusting circuit.Be stored with the lamp luminescence color of user's preferences in the memory module 400, after electricity on light adjusting circuit, treatment
Module 300 just reads the data of luminance from memory module 400, drives light fixture to be directly entered the lamp luminescence of user's preferences
Pattern so that the more convenient operation of light fixture, more humane.
Further, the light adjusting circuit includes detection of power loss module 200, and the detection of power loss module 200 detects light fixture
Whether power down, be converted to power-off signal and transmit to the processing module 300.
It should be noted that the test side of detection of power loss module 200 is directly connected with the second end of each LED light bar, make
User uses controlling switch, by repeatedly switching into the lamp luminescence state liked.If a LED lamp affixed to the ceiling has A, B two
Paths of LEDs lamp bar, default it is good according to detection switch on wall on-off times (i.e. LED lamp affixed to the ceilings power down number of times) bright light order be
A roads are bright, and B roads are bright, and AB two-way is simultaneously bright.
Detection of power loss module 200 judges to be by the way that whether detection has power down time in Preset Time (such as in 10 seconds)
It is no to have power loss event.
Further, the processing module according to power-off signal judge light fixture whether power down, if the light fixture in Preset Time
Non- power down, then be stored in memory module by the current luminance of light fixture.Memory module 400 realizes note in technical solution of the present invention
Recall the state of light fixture last time long-time bright light, after the complete power down of illuminator, re-power again, illuminator is recovered
To the colour temperature and luminance state of last bright light.
Further, according to power-off signal, power down number of times of the statistics light fixture in Preset Time is falling the processing module
Electric number of times initializes memory module when reaching set point number.
It should be noted that when the quantity of light fixture is more, such as in supermarket, there is 100 light fixtures, the lamp of different zones
After the power-up, it is inconsistent to there is luminance for tool, and here by power down number of times, i.e. the multiple mode of switching switch will
Memory module 400 returns to original state, and the purpose of the light fixture of synchronous multiple illuminator is reached with this.
Further, the light adjusting circuit also includes power supply module 100, the power supply module 100 and the processing module
300 connections；The processing module 300 by the power supply module 100 detect light fixture whether power down；If the light fixture in Preset Time
Non- power down, then be stored in memory module by the current luminance of light fixture.
It should be noted that in the present embodiment, the processing module 300 includes two detection ports, a port and institute
State detection of power loss module 200 to connect, another detection port is connected with power supply module 100, when user's electricity lower by switch,
Due to time delay, power supply module 100 or lamp bar is fully powered-off needs certain hour, which port is processing module 300 detect at first
Power down, then processed as effective power-off signal, another port input power-off signal it is then invalid.In this way, can improve
Processing speed of the processing module 300 to power loss event.
Specifically, in the present embodiment, the power supply module 100 is connected with the processing module 300, the memory module
400 are connected with the processing module 300, and the processing module 300 is also connected through the drive module 500 with the light fixture；Institute
Detection of power loss module 200 is stated to be connected with the light fixture and the processing module 300 respectively.
Further, the light adjusting circuit includes filtration module 600, the filtration module 600 and the detection of power loss mould
Block 200 is connected, and the filtration module 600 is also connected with the light fixture.The filtration module 600 is filtered to the signal that lamp bar is input into
Processed again after ripple, prevented the detection of external voltage fluctuations or other interference signals to power down.
In the present embodiment, the memory module 400 is non-volatile storage.
Further, LED is accessed in light adjusting circuit also one end including the first regulating resistor Rv, the first regulating resistor Rv
The first end of lamp bar, and power supply is accessed, the other end of the first regulating resistor Rv is connected with the power supply module 100.First
Regulating resistor Rv is used to adjust the supply voltage size of input to the power supply module Rv, can set the first pressure regulation as needed
Resistance Rv resistance sizes.
Reference picture 2, the present invention proposes a kind of light adjusting system, and the light adjusting system includes at least one constant-current control module
700 and light adjusting circuit as described above；The drive module 500 distinguishes the connection of the constant-current control module 700, the power down
Detection module 200 is connected with the constant-current control module 700 respectively, and the constant-current control module 700 is also connected with light fixture.
Further, the light adjusting system will also be input into electricity including the first electric capacity of voltage regulation C1, the first electric capacity of voltage regulation C1
Source exports to the constant-current control module 700 and light fixture again after being filtered voltage stabilizing.
The light adjusting system also includes power switch K1 and rectification circuit 800, wherein, the rectification circuit 800 is rectifier bridge.Electricity
One end input civil power of source switch K1, the other end of power switch K1 is connected with the first input end of rectifier bridge, and the of rectifier bridge
Two inputs are input into civil power.First output end and the second output end of rectifier bridge are used as constant-current control module 700, power supply module
100 and the power input of light fixture.
It should be noted that the constant-current control module 700 also includes that constant-current driven chip U1, current-limiting resistance Rs, second are adjusted
Piezoresistance Rf, sampling resistor Rx and the second electric capacity of voltage regulation Cx；
The drive end of the constant-current driven chip U1 is connected with light fixture；The first end of the second regulating resistor Rf accesses electricity
Source, second end of the second regulating resistor Rf is connected with the drive module 500, second end of the second regulating resistor Rf
Power end also with the constant-current driven chip U1 is connected, the feedback end of the constant-current driven chip U1 and the detection of power loss mould
Block 200 is connected, the earth terminal ground connection of the constant-current driven chip U1.
The first end of the second electric capacity of voltage regulation Cx is connected with the power end of the constant-current driven chip U1, and described second is steady
The second end ground connection of voltage capacitance Cx, the first end of the sampling resistor Rx is connected with the feedback end of the constant-current driven chip U1,
The second end ground connection of the sampling resistor Rx.
The first end of each current-limiting resistance Rs is connected with each other and is connected with the detection of power loss module 200 again, each current limliting electricity
The second end for hindering Rs connects with the feedback end of corresponding constant-current driven chip U1 respectively.
Reference picture 3, is further elaborated with reference to Fig. 3 to the operation principle of light adjusting circuit of the present invention：
S10, whole light adjusting system power-up initializing；
S20, the reading luminance data of memory module 400, export corresponding light fixture drive signal to the drive module
500；
S30, processing module 300 judge light fixture in Preset Time whether power down；
S40, when light fixture does not have power down in Preset Time, processing module 300 by current lamp luminescence state write remember
In recalling module 400；
S50, when light fixture has power down in Preset Time, count power down number of times；After each power down, processing module 300 is defeated
Go out signal to drive module 500, lamp bar state is changed according to the good bright light order of default；
S60, judge whether power down number of times reaches preset times；
S70, when preset times are reached, the primary data of the refresh memory module 400 of processing module 300；Not up to pre-
If during number of times, being back to step S30, power down number of times is counted again.
Technical solution of the present invention realizes the light fixture last time long-time bright light of memory illuminator using memory module 400
State, after the complete power down of illuminator, re-power again, illuminator returns to colour temperature and the brightness of last bright light
State.
And technical solution of the present invention is recovered memory module 400 using the mode for detecting that repeatedly switching is switched in the short time
To original state, the purpose of the illumination effect of the light fixture of synchronous multiple illuminator is reached with this.
Using memory module 400 can data storage functional realiey N street lamp bars any combination upper electric bright light mode.Should
Inventive technique scheme can be applicable in various illuminators, have a wide range of application.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in scope of patent protection of the invention in other related technical fields.
Claims (10)
1. a kind of light adjusting circuit, it is characterised in that including processing module, memory module and drive module；
The memory module, stores the luminance data of light fixture；
The processing module, reads the luminance data in memory module after the power-up, exports corresponding light fixture drive signal
To the drive module；
The drive module, drives light fixture to work in corresponding luminance according to the light fixture drive signal.
2. light adjusting circuit as claimed in claim 1, it is characterised in that the light adjusting circuit includes detection of power loss module, described
Detection of power loss module detection light fixture whether power down, be converted to power-off signal and transmit to the processing module.
3. light adjusting circuit as claimed in claim 2, it is characterised in that the processing module judges that light fixture is according to power-off signal
No power down, if the non-power down of light fixture in Preset Time, memory module is stored in by the current luminance of light fixture.
4. light adjusting circuit as claimed in claim 2, it is characterised in that the processing module counts light fixture according to power-off signal
Power down number of times in Preset Time, initializes memory module when power down number of times reaches set point number.
5. light adjusting circuit as claimed in claim 4, it is characterised in that the light adjusting circuit also includes power supply module, the confession
Electric module is connected with the processing module；The processing module by the power supply module detect light fixture whether power down；If pre-
If the non-power down of light fixture in the time, then the current luminance of light fixture is stored in memory module.
6. light adjusting circuit as claimed in claim 4, it is characterised in that the memory module is connected with the processing module, institute
Processing module is stated also to be connected with the light fixture through the drive module；The detection of power loss module respectively with the light fixture and described
Processing module is connected.
7. light adjusting circuit as claimed in claim 6, it is characterised in that the light adjusting circuit includes filtration module, the filtering
Module is connected with the detection of power loss module, and the filtration module is also connected with the light fixture.
8. light adjusting circuit as claimed in claim 1, it is characterised in that the memory module is non-volatile storage.
9. a kind of light adjusting system, it is characterised in that the light adjusting system includes at least one constant-current control module and as right will
Seek the light adjusting circuit described in 1-8 any one；The drive module, detection of power loss module connect with the constant-current control module respectively
Connect, the constant-current control module is also connected with light fixture.
10. light adjusting system as claimed in claim 9, it is characterised in that the light adjusting system also includes the first electric capacity of voltage regulation, institute
State the first electric capacity of voltage regulation input power is filtered after voltage stabilizing and export again to the constant-current control module and light fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234563.0A CN106879124B (en) | 2017-04-11 | 2017-04-11 | Light adjusting circuit and light adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710234563.0A CN106879124B (en) | 2017-04-11 | 2017-04-11 | Light adjusting circuit and light adjusting system |
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| Publication Number | Publication Date |
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| CN106879124A true CN106879124A (en) | 2017-06-20 |
| CN106879124B CN106879124B (en) | 2019-08-13 |
Family
ID=59162727
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710234563.0A Active CN106879124B (en) | 2017-04-11 | 2017-04-11 | Light adjusting circuit and light adjusting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113923820A (en) * | 2021-10-26 | 2022-01-11 | 陕西亚成微电子股份有限公司 | High-voltage linear switch dimming circuit with memory and method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106879124B (en) | 2019-08-13 |
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