CN106879124B - Light adjusting circuit and light adjusting system - Google Patents
Light adjusting circuit and light adjusting system Download PDFInfo
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- CN106879124B CN106879124B CN201710234563.0A CN201710234563A CN106879124B CN 106879124 B CN106879124 B CN 106879124B CN 201710234563 A CN201710234563 A CN 201710234563A CN 106879124 B CN106879124 B CN 106879124B
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- module
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- lanterns
- power
- light adjusting
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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 lamps and lanterns；Processing module reads the luminance data in memory module after the power-up, exports corresponding lamps and lanterns driving signal to drive module；Drive module drives lamps and lanterns to work in corresponding luminance according to lamps and lanterns driving 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, in particular to a kind of light adjusting circuit and light adjusting system
Background technique
LED application is divided into display and illumination two major classes.It take light emitting diode (LED) as the novel illumination of light source, referred to as half
Conductor illumination, abbreviation LED illumination, the industry based on semiconductor lighting are known as LED illumination industry.At home industrial policy and
Under the dual pulling of international market demand, Chinese LED illumination product market is in accelerated development.Currently, whole world LED production capacity to
China's transfer, the LED encapsulation in the whole world 50% or so and 60% or more LED application are all carried out in China.China has become the whole world
The most fast region of semiconductor lighting industry development.
The light of the different types of capable of emitting different colours of LED, as the improvement of people's living standards, being wanted to LED illumination
Ask also higher and higher, 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 ceiling lamp has A, B two paths of LED lamp
Item, system are that the road A is bright according to on-off times (i.e. LED ceiling lamp number of power failures) the control bright light sequence of detection switch on wall, the road B
Bright, AB two-way is bright simultaneously.If user likes the bright colour temperature of AB, every time for a long time after lower electricity, system does not have memory function, extensive
It is bright that the i.e. road A of initial state is arrived again, is required to switch the road A by switch on wall, and can work the shape bright simultaneously in AB two-way after the road B
State.The state of the bright light of user's last time cannot 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.
Summary 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 lamps and lanterns；
The processing module reads the luminance data in memory module after the power-up, exports corresponding lamps and lanterns driving
Signal is to the drive module；
The drive module drives lamps and lanterns to work in corresponding luminance according to the lamps and lanterns driving signal.
Preferably, the light adjusting circuit includes detection of power loss module, detection of power loss module detection lamps and lanterns whether power down,
It is converted to power-off signal and is transmitted to the processing module.
Preferably, the processing module according to power-off signal judge lamps and lanterns whether power down, if lamps and lanterns are not within a preset time
The current luminance of lamps and lanterns is then stored in memory module by power down.
Preferably, the processing module counts the number of power failures of lamps and lanterns within a preset time, in power down according to power-off signal
Number initializes memory module when reaching setting number.
Preferably, the light adjusting circuit further includes power supply module, and the power supply module is connect with the processing module；It is described
Processing module by the power supply module detect lamps and lanterns whether power down；If the non-power down of lamps and lanterns within a preset time, by lamps and lanterns
Current luminance is stored in memory module.
Preferably, the memory module is connect with the processing module, the processing module also through the drive module with
The lamps and lanterns connection；The detection of power loss module is connect with the lamps and lanterns and the processing module respectively.
Preferably, the light adjusting circuit includes filter module, and the filter module is connect with the detection of power loss module, institute
Filter module is stated also to connect with the lamps and lanterns.
Preferably, the memory module is non-volatile storage.
The present invention proposes a kind of light adjusting system, and the light adjusting system includes at least one constant-current control module and as described above
Light adjusting circuit；The drive module, detection of power loss module are connect with the constant-current control module respectively, the current constant control mould
Block is also connect with lamps and lanterns.
Preferably, the light adjusting system further includes the first electric capacity of voltage regulation, and first electric capacity of voltage regulation carries out input power
It is exported again after filtering voltage regulation to the constant-current control module and lamps and lanterns.
Technical solution of the present invention forms a kind of light adjusting circuit by setting processing module, memory module and drive module.
The lamp luminescence color of user's preferences is stored in the memory module, after light adjusting circuit powers on, processing module is just from memory
The data of luminance are read in module, driving lamps and lanterns are directly entered the lamp luminescence mode of user's preferences, so that the behaviour of lamps and lanterns
Make more convenient, more humane.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the functional block diagram of one embodiment of light adjusting circuit of the present invention；
Fig. 2 is the functional block diagram of one embodiment of light adjusting system of the present invention；
Fig. 3 is the flow chart of one 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 | Processing module | Rv | First regulating resistor |
| 400 | Memory module | Rf | Second regulating resistor |
| 500 | Drive module | Cx | Second electric capacity of voltage regulation |
| 600 | Filter module | C1 | First electric capacity of voltage regulation |
| 700 | Constant-current control module | Rx | Sampling resistor |
| 800 | Rectification module | K1 | Power switch |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
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 lamps and lanterns；The processing module 300 reads note after the power-up
Recall the luminance data in module 400, exports corresponding lamps and lanterns driving signal to the drive module 500；The driving mould
Block 500 drives lamps and lanterns to work in corresponding luminance according to the lamps and lanterns driving signal.It is worth noting that the processing
Module 300 and memory module 400 can integrate in a chip, such as single-chip microcontroller.Wherein, the memory module 400 stores
There is the lamp luminescence color of user's preferences, when powering on again after long-time powers off, user can be only by once switch can be direct
Into desired operating mode.
It should be noted that the lamps and lanterns are LED light, which includes multiple LED light bars, each LED in the present embodiment
The first end of lamp bar and the anode of power supply connect, and the second end of LED light bar is through a switching tube (such as metal-oxide-semiconductor) and power cathode
Connection, the controlled end of the switching tube of each LED light bar are connect with the drive module 500 respectively.The output control of drive module 500
Waveform, for controlling the size of current for lighting, extinguishing and adjusting LED light bar of 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.The lamp luminescence color of user's preferences is stored in the memory module 400, after light adjusting circuit powers on, processing
Module 300 just reads the data of luminance from memory module 400, and driving lamps and lanterns are directly entered the lamp luminescence of user's preferences
Mode, so that the more convenient operation of lamps and lanterns, more humane.
Further, the light adjusting circuit includes detection of power loss module 200, and the detection of power loss module 200 detects lamps and lanterns
Whether power down, be converted to power-off signal and be transmitted to the processing module 300.
It should be noted that the test side of detection of power loss module 200 is directly connect with the second end of each LED light bar, make
User uses control switch, by repeatedly switching into the lamp luminescence state liked.If a LED ceiling lamp has A, B two
Paths of LEDs lamp bar, default is good to be according to on-off times (i.e. LED ceiling lamp number of power failures) bright light sequence of detection switch on wall
The road A is bright, and the road B is bright, and AB two-way is bright simultaneously.
Whether detection of power loss module 200 has power down time within a preset time (such as in 10 seconds) by detection to judge to be
It is no to have power loss event.
Further, the processing module according to power-off signal judge lamps and lanterns whether power down, if lamps and lanterns within a preset time
The current luminance of lamps and lanterns is then stored in memory module by non-power down.Memory module 400 realizes note in technical solution of the present invention
The state for recalling lamps and lanterns last time long-time bright light re-powers again after the complete power down of lighting system, and lighting system is restored
To the colour temperature and luminance state of last bright light.
Further, the processing module counts the number of power failures of lamps and lanterns within a preset time, is falling according to power-off signal
Electric number initializes memory module when reaching setting number.
It should be noted that when the quantity of lamps and lanterns is more, such as in supermarket, there is 100 lamps and lanterns, the lamp of different zones
After the power-up, it is inconsistent to have a luminance for tool, and here by number of power failures, i.e. the multiple mode of switching switch will
Memory module 400 returns to original state, and the lamps and lanterns for synchronizing multiple lighting systems are achieved the purpose that with this.
Further, the light adjusting circuit further 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 lamps and lanterns whether power down；If lamps and lanterns within a preset time
The current luminance of lamps and lanterns is then stored in memory module by non-power down.
It should be noted that the processing module 300 includes that there are two detect port, a port and institute in the present embodiment
The connection of detection of power loss module 200 is stated, another detection port is connect with power supply module 100, when user's electricity lower by switch,
Due to delay, power supply module 100 or lamp bar is fully powered-off needs certain time, which port is processing module 300 detect at first
Power down, then handled as effective power-off signal, the power-off signal of another port input is then invalid.In this way, can be improved
Processing speed of the processing module 300 to power loss event.
Specifically, in the present embodiment, the power supply module 100 is connect with the processing module 300, the memory module
400 connect with the processing module 300, and the processing module 300 is also connect through the drive module 500 with the lamps and lanterns；Institute
Detection of power loss module 200 is stated to connect with the lamps and lanterns and the processing module 300 respectively.
Further, the light adjusting circuit includes filter module 600, the filter module 600 and the detection of power loss mould
Block 200 connects, and the filter module 600 is also connect with the lamps and lanterns.The signal that the filter module 600 inputs lamp bar is filtered
It is handled again after wave, prevents 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, light adjusting circuit further includes one end access LED of 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 connect with the power supply module 100.First
Regulating resistor Rv can set the first pressure regulation as needed for adjusting the supply voltage size for being input to the power supply module Rv
Resistance Rv resistance value size.
Referring to Fig. 2, the present invention proposes that a kind of light adjusting system, the light adjusting system include 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 connect with the constant-current control module 700 respectively, and the constant-current control module 700 is also connect with lamps and lanterns.
Further, the light adjusting system further includes that the first electric capacity of voltage regulation C1, the first electric capacity of voltage regulation C1 will input electricity
Source, which is filtered after pressure stabilizing, to be exported again to the constant-current control module 700 and lamps and lanterns.
The light adjusting system further includes power switch K1 and rectification circuit 800, wherein the rectification circuit 800 is rectifier bridge.Electricity
One end of source switch K1 inputs alternating current, and the other end of power switch K1 and the first input end of rectifier bridge connect, and the of rectifier bridge
Two input terminals input alternating current.The first output end and second output terminal of rectifier bridge are as constant-current control module 700, power supply module
100 and lamps and lanterns power input.
It should be noted that the constant-current control module 700 further includes constant-current driven chip U1, current-limiting resistance Rs, the second tune
Piezoresistance Rf, sampling resistor Rx and the second electric capacity of voltage regulation Cx；
The driving end of the constant-current driven chip U1 is connect with lamps and lanterns；The first end of the second regulating resistor Rf accesses electricity
The second end in source, the second regulating resistor Rf is connect with the drive module 500, the second end of the second regulating resistor Rf
It is also connect with the power end of the constant-current driven chip U1, the feedback end of the constant-current driven chip U1 and the detection of power loss mould
Block 200 connects, the ground terminal ground connection of the constant-current driven chip U1.
The first end of the second electric capacity of voltage regulation Cx is connect with the power end of the constant-current driven chip U1, and described second is steady
The second end of voltage capacitance Cx is grounded, and the first end of the sampling resistor Rx is connect with the feedback end of the constant-current driven chip U1,
The second end of the sampling resistor Rx is grounded.
The first end interconnection of each current-limiting resistance Rs is connect with the detection of power loss module 200 again, each current limliting electricity
The second end for hindering Rs is connected with the feedback end of corresponding constant-current driven chip U1 respectively.
Referring to Fig. 3, it is further elaborated in conjunction with working principle of the Fig. 3 to light adjusting circuit of the present invention:
S10, the power-up initializing of entire light adjusting system；
S20,400 luminance data of memory module are read, exports corresponding lamps and lanterns driving signal to the drive module
500；
S30, processing module 300 judge lamps and lanterns within a preset time whether power down；
S40, when lamps and lanterns do not have power down within a preset time, processing module 300 by current lamp luminescence state be written remember
Recall in module 400；
S50, when lamps and lanterns have power down within a preset time, count number of power failures；After each power down, processing module 300 is defeated
Signal changes lamp bar state according to the good bright light sequence of default to drive module 500 out；
S60, judge whether number of power failures reaches preset times；
S70, when reaching preset times, the primary data of 300 refresh memory module 400 of processing module；Not up to pre-
If when number, being back to step S30, counting number of power failures again.
Technical solution of the present invention realizes the lamps and lanterns last time long-time bright light of memory lighting system using memory module 400
State re-powered again after the complete power down of lighting system, lighting system is restored to the colour temperature and brightness of last bright light
State.
And technical solution of the present invention by detection the short time in repeatedly switch switch in the way of, memory module 400 is restored
To original state, the illumination effect for synchronizing the lamps and lanterns of multiple lighting systems is achieved the purpose that with this.
By memory module 400 can storing data function realize N street lamp item any combination power on bright light in the way of.It should
Inventive technique scheme can be applicable in various lighting systems, have a wide range of application.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (6)
1. a kind of light adjusting circuit, which is characterized in that including processing module, memory module, drive module and detection of power loss module；Institute
It states memory module to connect with the processing module, the processing module is also connect through the drive module with lamps and lanterns；The power down
Detection module is connect with the lamps and lanterns and the processing module respectively；Wherein,
The memory module stores the luminance data of lamps and lanterns；
The detection of power loss module, detection lamps and lanterns whether power down, be converted to power-off signal and be transmitted to the processing module；
The processing module, according to power-off signal judge lamps and lanterns whether power down, if the non-power down of lamps and lanterns within a preset time, by lamp
The current luminance of tool is stored in memory module, reads the luminance data in memory module after the power-up, and output corresponds to
Lamps and lanterns driving signal to the drive module, if the lamps and lanterns power down in the preset time, count lamps and lanterns when described default
Interior number of power failures initializes memory module when the number of power failures reaches setting number；
The drive module drives lamps and lanterns to work in corresponding luminance according to the lamps and lanterns driving signal.
2. light adjusting circuit as described in claim 1, which is characterized in that the light adjusting circuit further includes power supply module, the place
Managing module includes there are two detecting port, and a port connect with the detection of power loss module, another detect port with it is described
Power supply module connection, the processing module detect whether lamps and lanterns fall by the power supply module and the detection of power loss module simultaneously
Electricity, if lamps and lanterns power down within a preset time, the processing module believes the power down that the detection port for first detecting power down inputs
It number is handled as effective power-off signal, the power-off signal of another detection port input is as invalid power-off signal, if pre-
If the current luminance of lamps and lanterns is then stored in memory module by the non-power down of lamps and lanterns in the time.
3. light adjusting circuit as described in claim 1, which is characterized in that the light adjusting circuit includes filter module, the power down
Detection module is connect through the filter module with the lamps and lanterns.
4. light adjusting circuit as described in claim 1, which is characterized in that the memory module is non-volatile storage.
5. a kind of light adjusting system, which is characterized in that the light adjusting system includes at least one constant-current control module and as right is wanted
Seek light adjusting circuit described in 1-4 any one；The drive module, detection of power loss module connect with the constant-current control module respectively
It connects, the constant-current control module is also connect with lamps and lanterns.
6. light adjusting system as claimed in claim 5, which is characterized in that the light adjusting system further includes the first electric capacity of voltage regulation, institute
It states the first electric capacity of voltage regulation input power is filtered after pressure stabilizing and exported again to the constant-current control module and lamps and lanterns.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| CN106879124A CN106879124A (en) | 2017-06-20 |
| CN106879124B true CN106879124B (en) | 2019-08-13 |
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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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| CN106879124A (en) | 2017-06-20 |
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