CN106358339A - Dimmable LED illuminating device capable of automatically keeping illuminance - Google Patents
Dimmable LED illuminating device capable of automatically keeping illuminance Download PDFInfo
- Publication number
- CN106358339A CN106358339A CN201610988412.XA CN201610988412A CN106358339A CN 106358339 A CN106358339 A CN 106358339A CN 201610988412 A CN201610988412 A CN 201610988412A CN 106358339 A CN106358339 A CN 106358339A
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- China
- Prior art keywords
- illumination
- module
- user input
- illuminance
- led
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Classifications
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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]
- H05B45/10—Controlling the intensity of the light
-
- 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]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a dimmable LED illuminating device capable of automatically keeping illuminance. The dimmable LED illuminating device comprises a power module (1), an LED light source, an LED drive module (2), an ambient light detection module, a user input illuminance module (4) and a central controller module (3), wherein the LED drive module (2) provides drive current and voltage to the LED light source and can dim light according to a set value; the ambient light detection module detects the ambient light illuminance and provides a light induction signal; the user input illuminance module (4) provides optional illuminance; the central controller module (3) receives the light induction signal of the ambient light detection module and analyzes to obtain ambient light illuminance (A1) and receives a signal of the user input illuminance module (4) and analyzes to obtain user input illuminance (A0) and calculates and outputs a dimming control signal to the LED drive module (2); and the LED drive module (2) controls the output light illuminance of the LED light source according to the dimming control signal of the central controller module (3) so that the actual light illuminance is the set user input illuminance (A0) and automatically keeps consistent according to the change of the user input illuminance (A0). The device disclosed by the invention can be widely applied to the fields of LED illumination.
Description
Technical field
The present invention relates to a kind of tunable optical led illuminator of automatic holding illumination.
Background technology
The commonly used simple controlling switch lamp of traditional lighting is bright to be gone out with lamp, does not possess dimming function it is impossible to answer
Ambient lighting is changed.Have also appeared the light fixture being dimmed using dimmer at present, it needs to be dimmed by hand, ambient light
According to during change, equally cannot automatically adapt to therewith change, lead to complex operation.In addition, have also appeared at present a kind of new can
With according to ambient lighting change adjust automatically export brightness light fixture although its can with adjust automatically brightness, but its adjustment after
Brightness be only a fixed value, the brightness that user cannot be actually used to it is adjusted, therefore in-convenience in use.
Content of the invention
The technical problem to be solved is to overcome the deficiencies in the prior art, and provide a kind of automatic holding illumination can
Light modulation led illuminator, this device not only can be dimmed as needed, and can automatically keep the light modulation setting bright
Degree.
The technical solution adopted in the present invention is: the present invention is included for providing stable DC electricity for whole illuminator
Power module, LED light source, provide driving current and voltage for described LED light source and can be dimmed according to setting value
Led drive module, for detecting ambient light illumination and providing the ambient light detection module of light sensation induction signal, is used for providing the user
The user input illumination module of optional illumination, for receiving the light sensation induction signal of described ambient light detection module offer and analyzing
To ambient light illumination and receive the signal that described user input illumination module provides and analyze and obtain user input illumination, process
Described led drive module exports the central controller module of dimming control signal backward for computing, and described led drive module is according to institute
What the dimming control signal stating central controller module offer controlled described LED light source goes out illuminance so that described LED light source
Going out the actual illuminance obtaining after illuminance is combined with described ambient light illumination is the described user input illumination setting, described reality
Border illuminance keeps consistent with it automatically according to the change of described user input illumination.
After described central controller module obtains ambient light illumination and user input illumination, calculate the difference of the two,
The illuminance that goes out making described LED light source eventually is equal to described difference.
Described central controller module includes cpu and provides the second manostat of burning voltage for it.
Described cpu adopts Programmable m cu or other logic control chips.
Described second manostat adopts low pressure difference linear voltage regulator.
Described led drive module includes the constant-current driven chip with pulsewidth modulation, described cpu according to user input illumination with
The difference of described ambient light illumination exports corresponding pulse-width signal to described constant-current driven chip, described constant-current driven chip
Output is adjusted according to pulse-width signal, thus adjust described LED light source goes out illuminance.
Described led drive module is using switch constant-current circuit or linear constant current circuit.
Described user input illumination module is provided with least two grades optionally described user input illumination.
Described user input illumination module includes user input touchpad, the described user input illumination of setting for selection.
Described user input touchpad adopts singly-bound or multikey is touch or mechanical push-key type.
Described user input illumination module also includes defeated for receiving the selected user's touch of described user input touchpad
Enter signal and output it to the touch input chip of described central controller module and provide the first steady of burning voltage for it
Depressor.
Described touch input chip adopts Programmable m cu or other logic control chips.
Described first manostat adopts low pressure difference linear voltage regulator.
Described power module is switch constant voltage circuit, and described power module includes DC supply input, step-down controller.
Described ambient light detection module includes light sensitive diode or photoconductive resistance.
The invention has the beneficial effects as follows: the electricity for providing stable DC electricity for whole illuminator is included due to the present invention
Source module, LED light source, for providing driving current and voltage and the led that can be dimmed according to setting value for described LED light source
Drive module, for detecting ambient light illumination and providing the ambient light detection module of light sensation induction signal, being used for providing the user can
Select the user input illumination module of illumination, obtain for receiving the light sensation induction signal that described ambient light detection module provides analyzing
Ambient light illumination and receive the signal that described user input illumination module provides and analyze and obtain user input illumination, Jing Guoyun
Calculate the central controller module that described led drive module backward exports dimming control signal, described led drive module is according to described
What the dimming control signal that central controller module provides controlled described LED light source goes out illuminance so that the going out of described LED light source
The actual illuminance that illuminance is obtained after being combined with described ambient light illumination is the described user input illumination setting, described reality
Illuminance keeps consistent with it automatically according to the change of described user input illumination；Instant invention overcomes the deficiencies in the prior art,
The advantage gathered existing dimmer for light control and changed two types product with an automatic light meter according to ambient lighting, using described ring
The illumination of border light detection module measuring environment light, by described central controller module read ambient light brightness value, then with institute
The setting value stating user input illumination module compares, and then adjusts the output of described led drive module such that it is able to control
Make the illumination of described LED light source so that the actual illuminance in illumination region automatically achieves the setting brightness value of user so that lamp
Have the scope that the using effect that light reaches is constantly maintained at setting, not only meet user's use demand, brightness is comfortable, Er Qiejie
Can, in addition user can according to actual needs, the luminance effects that sets itself needs reach, therefore the present invention not only can be according to need
Dimmed, and can automatically be kept the light modulation brightness setting.
Brief description
Fig. 1 is the principle schematic of the embodiment of the present invention；
Fig. 2 is the circuit diagram of the user input illumination module of the embodiment of the present invention；
Fig. 3 is the circuit diagram of the central controller module of the embodiment of the present invention；
Fig. 4 is the power module of the embodiment of the present invention and the circuit diagram of led drive module.
Specific embodiment
As shown in Figure 1 to 4, embodiments of the invention include the electricity for providing stable DC electricity for whole illuminator
Source module 1, LED light source, provide driving current and voltage for described LED light source and can be dimmed according to setting value
Led drive module 2, for detecting ambient light illumination and providing the ambient light detection module of light sensation induction signal, for carrying for user
For the user input illumination module 4 of optional illumination, for receiving the light sensation induction signal of described ambient light detection module offer and dividing
Analysis obtains ambient light illumination a1 and receives the signal that described user input illumination module 4 provides and analyze and obtain user input and shine
Degree a0, through computing, described led drive module 2 exports the central controller module 3 of dimming control signal backward, and described led drives
Dynamic model block 2 controls the illuminance that of described LED light source, tool according to the dimming control signal that described central controller module 3 provides
After body obtains ambient light illumination a1 and user input illumination a0 for described central controller module 3, calculate the difference of the two
A0-a1, finally make described LED light source go out illuminance be equal to described difference a0-a1 so that described LED light source go out light
The actual illuminance that illumination is obtained after being combined with described ambient light illumination a1 is described user input illumination a0 setting, described reality
Border illuminance keeps consistent with it automatically according to the change of described user input illumination a0.
Described central controller module 3 includes cpu u4 and provides the second manostat u5 of burning voltage and periphery electricity for it
Road；Described cpu u4 adopts Programmable m cu naturally it is also possible to adopt other logic control chips；In the present embodiment, described second
Manostat u5 adopts low pressure difference linear voltage regulator, its model bl1117；Described led drive module 2 is included with pulsewidth modulation
Constant-current driven chip ic1 and peripheral circuit, model dw8501 of described constant-current driven chip ic1, described cpu u4 according to
Family Input illumination a0 exports corresponding pulse-width signal with difference a0-a1 of described ambient light illumination a1 and drives to described constant current
Dynamic chip ic1, described constant-current driven chip ic1 adjust output according to pulse-width signal, thus adjusting described LED light source
Go out illuminance；Described led drive module 2 can also be using other switch constant-current circuits or linear constant current circuit；Described user
Input illumination module 4 is provided with five grades of optionally described user input illumination a0, i.e. k1～k6 in Fig. 2 (b)；Described user input
Illumination module 4 includes user input touchpad, described user input illumination a0 of setting for selection；Described user input touchpad
Using singly-bound or multikey be touch or mechanical push-key type；Described user input illumination module 4 is also included for receiving described user
The input touchpad user's touch input signal selected the touch input chip outputing it to described central controller module 3
U1 and the first manostat u2 for its offer burning voltage and peripheral circuit；Described touch input chip u1 adopts Programmable m cu,
Other logic control chips can certainly be adopted；Described first manostat u2 adopts low pressure difference linear voltage regulator, its model
bl9198；Described power module 1 is switch constant voltage circuit, and described power module 1 includes DC supply input, step-down controller
Ic2 and peripheral circuit, model tps54331 of described step-down controller ic2；Described ambient light detection module includes photosensitive two
Pole pipe or photoconductive resistance.
Instant invention overcomes the deficiencies in the prior art, gather existing dimmer for light control and changed certainly according to ambient lighting
The advantage of dynamic light modulation two types product, using the illumination of described ambient light detection module measuring environment light, by described central authorities
Controller module 3 reads the brightness value of ambient light, then compares with the setting value of described user input illumination module 4, then adjusts
The output of whole described led drive module 2 is such that it is able to control the illumination of described LED light source so that reality in illumination region
What border illuminance automatically achieved user sets brightness value so that light fixture goes out the model that the using effect that light reaches is constantly maintained at setting
Enclose, not only meet user's use demand, brightness is comfortable, and energy-conservation, in addition user can according to actual needs, and sets itself needs
Luminance effects to be reached, the therefore present invention not only can be dimmed as needed, and can automatically keep the tune setting
Brightness, can be applicable to multiple light fixture such as desk lamp.
The composite can be widely applied to led lighting field.
Claims (10)
1. a kind of tunable optical led illuminator of automatic holding illumination it is characterised in that: include for carrying for whole illuminator
For the power module (1) of stable DC electricity, LED light source, for providing driving current and voltage and can basis for described LED light source
The led drive module (2) that setting value is dimmed, for detecting ambient light illumination and providing the ambient light of light sensation induction signal to detect
Module, for providing the user user input illumination module (4) of optional illumination, carries for receiving described ambient light detection module
For light sensation induction signal analyzing obtain ambient light illumination (a1) and receive the letter that described user input illumination module (4) provides
Number and analyze obtain user input illumination (a0), through computing, described led drive module (2) exports dimming control signal backward
Central controller module (3), described led drive module (2) is believed according to the brightness adjustment control that described central controller module (3) provides
Number control described LED light source goes out illuminance so that the illuminance that goes out of described LED light source is combined with described ambient light illumination (a1)
The actual illuminance obtaining afterwards is the described user input illumination (a0) setting, and described actual illuminance is according to described user input
The change of illumination (a0) keeps consistent with it automatically.
2. automatic holding illumination according to claim 1 tunable optical led illuminator it is characterised in that: described central authorities
After controller module (3) obtains ambient light illumination (a1) and user input illumination (a0), calculate the difference (a0-a1) of the two,
The illuminance that goes out finally making described LED light source is equal to described difference (a0-a1).
3. automatic holding illumination according to claim 2 tunable optical led illuminator it is characterised in that: described central authorities
Controller module (3) includes cpu (u4) and provides second manostat (u5) of burning voltage for it；Described cpu (u4) adopts can
Programming mcu or other logic control chips；Described second manostat (u5) adopts low pressure difference linear voltage regulator.
4. automatic holding illumination according to claim 3 tunable optical led illuminator it is characterised in that: described led drives
Dynamic model block (2) include the constant-current driven chip with pulsewidth modulation (ic1), described cpu (u4) according to user input illumination (a0) with
The difference (a0-a1) of described ambient light illumination (a1) exports corresponding pulse-width signal to described constant-current driven chip
(ic1), described constant-current driven chip (ic1) adjusts output according to pulse-width signal, thus adjusting described LED light source
Go out illuminance.
5. automatic holding illumination according to claim 1 tunable optical led illuminator it is characterised in that: described led drives
Dynamic model block (2) is using switch constant-current circuit or linear constant current circuit.
6. automatic holding illumination according to claim 1 tunable optical led illuminator it is characterised in that: described user
Input illumination module (4) is provided with least two grades optionally described user input illumination (a0).
7. automatic holding illumination according to claim 6 tunable optical led illuminator it is characterised in that: described user
Input illumination module (4) includes user input touchpad, the described user input illumination (a0) of setting for selection；Described user is defeated
Enter that touchpad adopts singly-bound or multikey is touch or mechanical push-key type.
8. automatic holding illumination according to claim 7 tunable optical led illuminator it is characterised in that: described user
Input illumination module (4) is also included for receiving user's touch input signal it is defeated that described user input touchpad is selected
Go out to the touch input chip (u1) of described central controller module (3) and provide the first manostat of burning voltage for it
(u2)；Described touch input chip (u1) adopts Programmable m cu or other logic control chips；Described first manostat (u2) is adopted
Use low pressure difference linear voltage regulator.
9. automatic holding illumination according to claim 1 tunable optical led illuminator it is characterised in that: described power supply
Module (1) is switch constant voltage circuit, and described power module (1) includes DC supply input, step-down controller (ic2).
10. automatic holding illumination according to claim 1 tunable optical led illuminator it is characterised in that: described environment
Light detection module includes light sensitive diode or photoconductive resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988412.XA CN106358339A (en) | 2016-11-08 | 2016-11-08 | Dimmable LED illuminating device capable of automatically keeping illuminance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610988412.XA CN106358339A (en) | 2016-11-08 | 2016-11-08 | Dimmable LED illuminating device capable of automatically keeping illuminance |
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| CN106358339A true CN106358339A (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610988412.XA Pending CN106358339A (en) | 2016-11-08 | 2016-11-08 | Dimmable LED illuminating device capable of automatically keeping illuminance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108770121A (en) * | 2018-06-06 | 2018-11-06 | 西南交通大学 | A kind of bullet train illumination comfortableness control system and method |
| CN108966453A (en) * | 2018-06-11 | 2018-12-07 | 吴昆� | Indoor design environment optical analog device |
| CN110753430A (en) * | 2019-10-31 | 2020-02-04 | 美智光电科技有限公司 | Light source illumination adjusting system and method, lighting device and readable storage medium |
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| US20160105939A1 (en) * | 2014-10-13 | 2016-04-14 | Seoul Semiconductor Co., Ltd. | Dimmable led lighting apparatus |
| CN206302598U (en) * | 2016-11-08 | 2017-07-04 | 深圳市兴灯业电子有限公司 | A kind of Dimmable LED lighting device of automatic holding illumination |
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Application publication date: 20170125 |