CN107454716A - A kind of light-operated driving control system of double induction LEDs - Google Patents
A kind of light-operated driving control system of double induction LEDs Download PDFInfo
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- CN107454716A CN107454716A CN201710677070.4A CN201710677070A CN107454716A CN 107454716 A CN107454716 A CN 107454716A CN 201710677070 A CN201710677070 A CN 201710677070A CN 107454716 A CN107454716 A CN 107454716A
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- comparator
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- rectification filtering
- light
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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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- 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
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to a kind of double light-operated driving control systems of induction LED, including AC input module, EMI modules, rectification filtering module, comparator control module, drive control module, rectification filtering module and LED load module；The AC input module electrically connects with EMI modules, EMI modules electrically connect with rectification filtering module, rectification filtering module electrically connects with comparator control module, comparator controls module to be electrically connected through switching original paper J with drive control module, drive control module electrically connects with rectification filtering module, rectification filtering module electrically connects with LED load module, and the comparator control module is using double photo sensor devices.This control system strengthens the two-stable position of light-operated conversion using the automatic retention performance of dual inductor part and controllable silicon, strengthens the functional reliability of light fixture, increases the service life of product.
Description
Technical field
The invention belongs to LED light control technology field, more particularly to a kind of light-operated driving control system of double induction LEDs.
Background technology
The upset repeatedly that the common light-operated driving control system of single induction LED easily occurs in the critical point lighted and extinguished
Scintillation, single sensing light-operated LED sensing driving power is essentially all to realize critical point by environment using signal positive feedback
Brightness influences caused malfunction.The effect of the smaller suppression of signal of feedback is poorer, and the bigger circuit of feedback signal can lose control
System.Maximum control pressure difference is the 30-40 ℅ of power supply, and this control difference can not meet the sure effect of product.After lighting LED lamp
Influenceed to automatically shut down by self brightness, and brightness decline is lighted automatically after turning off, it is so repeated multiple times about rather to arrive
Dozens of minutes can just settle out.Change because of the positive feedback not getable stablizing effect of institute, it is necessary to using dual inductor part and
The automatic retention performance of controllable silicon strengthens the two-stable position of light-operated conversion, strengthens the functional reliability of light fixture, increases product
Service life.
The content of the invention
In order to overcome the upset scintillation repeatedly that light-operated induction LED light fixture occurs in the critical point lighted and extinguished,
Change because of the not getable stablizing effect of positive feedback institute；The present invention provides a kind of double light-operated driving control systems of induction LED, this control
System processed strengthens the two-stable position of light-operated conversion using the automatic retention performance of dual inductor part and controllable silicon, strengthens light fixture
Functional reliability, increase the service life of product.
The present invention is achieved through the following technical solutions, there is provided a kind of double light-operated driving control systems of induction LED, including
AC input module, EMI modules, rectification filtering module, comparator control module, drive control module, rectification filtering module and LED
Load blocks；The AC input module electrically connects with EMI modules, and EMI modules electrically connect with rectification filtering module, rectifying and wave-filtering mould
Block electrically connects with comparator control module, and comparator controls module to be electrically connected through switching original paper J with drive control module, driving control
Molding block electrically connects with rectification filtering module, and rectification filtering module electrically connects with LED load module, and the comparator controls module
Using double photo sensor devices.
Preferably, comparator control module uses double light-inductive devices to include input A points on comparator, on comparator
It is defeated under output end C points, photo sensor device RH1, triode Q1, controllable silicon VS, metal-oxide-semiconductor Q2, light-operated inductor RH2, comparator
Enter to hold output end D points under B points and comparator, light-operated inductor RH1 and adjustment resistance R1 are electrically connected with input A points on comparator
Connect, output end C points electrically connect with controllable silicon VS and metal-oxide-semiconductor Q2 on comparator, on comparator output end C points control controllable silicon VS and
Metal-oxide-semiconductor Q2 electrically connects through switching original paper J with drive control module；Light-operated inductor RH2 and adjustment resistance R2 with it is defeated under comparator
Enter to hold B points to electrically connect, output end D points electrically connect with triode Q1 under comparator, and triode Q1 electrically connects with controllable silicon VS.
Beneficial effects of the present invention are：
1）The LED light control driving control system of the present invention, is independently used and increased using double light-operated two groups of comparators of sensing device
The automatic holding effect of triggering of controllable silicon fully achieves light-operated automatic bistable control, and regulation comparator resistance R1 makes A points electric
Position, which reaches critical point in its preferable day black luminance, makes comparator C points output high potential light load.Regulation resistance R2 makes B
Point current potential makes lower comparator B points reach critical point in daybreak brightness plus load self brightness makes D point high potentials to extinguish load.
The design of this circuit completely avoid light fixture and light automatically and occur continuous flop phenomenon in critical point during automatic distinguishing,
It ensure that two independent stable states avoid the service life of the upset flicker increase light fixture of light fixture.
2）The present invention is applied to corridor；Garden；Enclosure wall；The illumination place that corridor etc. respectively automatically controls, it is each institutional settings
And family brings many facilities being applicable.
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
There is the required accompanying drawing used in technology description to be 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
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the fundamental diagram of comparative example of the present invention；
Fig. 2 is the fundamental diagram of the embodiment of the present invention 1.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Below in conjunction with the accompanying drawings and specific embodiment is further described to the application principle of the present invention.
Comparative example, such as Fig. 1, a kind of double light-operated driving control systems of induction LED, including AC input module 1, EMI modules 2, rectification
Filtration module 3, comparator control module 4, drive control module 5, rectification filtering module 6 and LED load module 7；The AC is defeated
Enter module 1 to electrically connect with EMI modules 2, EMI modules 2 electrically connect with rectification filtering module 3, rectification filtering module 3 and comparator control
Molding group 4 electrically connects, comparator control module 4 through switch original paper J electrically connected with drive control module 5, drive control module 5 and
Rectification filtering module 6 electrically connects, and rectification filtering module 6 electrically connects with LED load module 7, and the comparator control module 4 uses
Single light-inductive device.
Comparator control module 4 using single photo sensor device include comparator input terminal A points, comparator output terminal C points,
Photo sensor device RH, triode Q1 and metal-oxide-semiconductor Q2, photo sensor device RH and regulation resistance and comparator input terminal A points electricity
Connection, comparator input terminal A points electrically connect through positive feedback devices R with comparator output terminal C points, comparator output terminal C points and three
Pole pipe Q1 and metal-oxide-semiconductor Q2 electrical connections, comparator output terminal C control triode Q1 and metal-oxide-semiconductor Q2 through switching original paper J and drive control
Module 5 electrically connects.
The operation principle of scheme：
Civil power enters EMI modules 2 through AC input module 1 and entered by EMI modules 2 into rectification filtering module 3 by rectification filtering module 3
Enter comparator control module 4, then switch original paper J action controls drive control module 5 is made again by driving by comparator control module 4
Rectification filtering module 6 is arrived in control 5, by loading LED load module 7 to rectification filtering module 6.
Its light-operated sensing control section is：When ambient brightness reduces at dark, the rise of RH resistances makes the reduction of A points current potential, when
Dropping to certain value, both this photo sensor device of critical point RH induces low signal, and into comparator, high RST is exported by comparator
Go control triode Q1 and metal-oxide-semiconductor Q2 to act switch original paper J and light load LED to drive control power supply.When at day environment
Brightness raises, and sensing RH is increased to A point current potentials makes triode Q1 and metal-oxide-semiconductor Q2 more than critical point, comparator output low level
Cut-off makes switch original paper J block drive control dead electricity load LED to extinguish.
Photo sensor device RH senses that A point current potentials have a critical point in this circuit, and ambient brightness is less than A points
Critical point, comparator C points output high RST light load, and now load makes surrounding environment brightness rise this brightness quilt again after lighting
Photo sensor device RH, which absorbs, makes its A point not only higher than critical point comparator C points but also output low potential extinguishes load immediately, loads
Surrounding environment brightness reduces RH and A point current potentials is increased to critical point again after extinguishing makes load light again, so go round and begin again through
Ambient brightness thoroughly grows dark and can just settled out after a period of time.It is usually to add a positive feedback on comparator to overcome this phenomenon
Device R.When ambient brightness make A points low to critical point comparator C output high level light load simultaneously C points high level it is anti-through R
Being fed to the input positive terminal of comparator makes reference potential rise 30-40 ℅ to overcome because load self brightness increases to what A points were brought
Current potential.But this feedback can only reach 40 ℅ again it is high will feedback out of hand and 40 ℅ be that can not thoroughly change critical upset both
It can not meet to require.
Embodiment 1, such as Fig. 2, a kind of double light-operated driving control systems of induction LED, including AC input module 1, EMI modules 2,
Rectification filtering module 3, comparator control module 4, drive control module 5, rectification filtering module 6 and LED load module 7；It is described
AC input module 1 electrically connects with EMI modules 2, and EMI modules 2 electrically connect with rectification filtering module 3, and rectification filtering module 3 is compared with
Device control module 4 electrically connects, and comparator controls module 4 to be electrically connected through switching original paper J with drive control module 5, drive control mould
Block 5 electrically connects with rectification filtering module 6, and rectification filtering module 6 electrically connects with LED load module 7, and the comparator controls module
4 using double photo sensor devices.
Comparator control module 4 uses single light-inductive device to include input A points on comparator, output end C on comparator
Input B points under point, photo sensor device RH1, triode Q1, controllable silicon VS, metal-oxide-semiconductor Q2, light-operated inductor RH2, comparator
With output end D points under comparator, light-operated inductor RH1 and adjustment R1 electrically connect with input A points on comparator, defeated on comparator
Go out to hold C points to be electrically connected with controllable silicon VS and metal-oxide-semiconductor Q2, output end C points control controllable silicon VS and metal-oxide-semiconductor Q2 is through switch on comparator
Original paper J electrically connects with drive control module 5；Light-operated inductor RH2 and adjustment R2 electrically connect with input B points under comparator, than
Electrically connected compared with output end D points under device with triode Q1, triode Q1 electrically connects with controllable silicon VS.
The operation principle of scheme：
Civil power enters EMI modules 2 from AC input module 1 and enters rectification filtering module 3 by EMI modules 2, by rectification filtering module 3
Module 4 is controlled into comparator, then switch original paper J action controls drive control module 5 is made by comparator control module 4, then by
Drive control module 5 arrives rectification filtering module 6, by loading LED load module 7 to rectification filtering module 6.
Main circuit is identical with Fig. 1 in addition to comparator controls module 4, simply changes comparator control mode.The control of this invention
Structure processed is included comparator and compared using double, and increasing light-operated inductor RH2 turns into double sensing RH1 and RH2.Q1 reconfigurations are to lower comparison
The output end of device, increase controllable silicon VS connect comparator output terminal.Its control principle is：
Adjustment R1 makes comparator A points current potential reach critical point when light-operated inductor RH1 increases in its resistance at dark, now compares
Compared with the output high level control controllable silicon VS conductings of device C points, so that load LED is lighted in the J actions of switch original paper, due to controllable silicon
Even if characteristic conducting after signal out of hand it remain on, not by because load self brightness influenceed to be always maintained at turning on
State.Now adjustment R2, which makes its load light the critical point that B points current potential can not be made to be less than lower comparator, does not make D points be in high electricity
Flat, this assures the stable illuminating states of load LED, are not influenceed by load self brightness change.It is sensitive when time daybreak
Device RH1 is answered A points current potential is exceeded the critical point of upper comparator but because the performance load of controllable silicon is in lighting shape
State.RH2 resistances now reduce in daylight environment brightness plus the sensing resistance for loading the brightness of itself, when being reduced to certain value
Reach lower comparator B points current potential or make triode Q1 conductings controllable silicon VS electricity less than critical point, now D points output high level
Position, which moves ground terminal to, forces controllable silicon VS shut-offs switch original paper J dead electricity is extinguished load LED.Surrounding environment is bright after now load is extinguished
Even if degree decrease B point postcriticals make D points output low potential triode Q1 turn off thyristor VS current potentials be restored but
Because upper comparator A points are that high potential C points output low potential controllable silicon VS can not be turned on, load still in OFF state.Only
Having could light again when darkness RH1 makes A point current potentials drop to critical point.So just solves the two-stable position of product.
Certainly, described above is also not limited to the example above, the technical characteristic of the invention without description can by or
Realized, will not be repeated here using prior art；Above example and accompanying drawing are merely to illustrate technical scheme
It is limitation of the present invention, the present invention is described in detail with reference to preferred embodiment, the ordinary skill people of this area
Member is it should be appreciated that change, remodeling, the addition that those skilled in the art are made in the essential scope of the present invention
Or replace the claims that without departure from spirit of the invention, should also belong to the present invention.
Claims (2)
- A kind of 1. light-operated driving control system of double induction LEDs, it is characterised in that：Including AC input module（1）, EMI modules（2）、 Rectification filtering module（3）, comparator control module（4）, drive control module（5）, rectification filtering module（6）With LED load mould Block（7）；The AC input module（1）With EMI modules（2）Electrical connection, EMI modules（2）With rectification filtering module（3）Electrical connection, Rectification filtering module（3）Module is controlled with comparator（4）Electrical connection, comparator control module（4）Controlled through switching original paper J with driving Molding block（5）Electrical connection, drive control module（5）With rectification filtering module（6）Electrical connection, rectification filtering module（6）Born with LED Carry module（7）Electrical connection, the comparator control module（4）Using double photo sensor devices.
- A kind of 2. double light-operated driving control systems of induction LED according to claim 1, it is characterised in that：Comparator controls Module（4）Include input A points on comparator, output end C points, photo sensor device on comparator using double photo sensor devices Output end under input B points and comparator under RH1, triode Q1, controllable silicon VS, metal-oxide-semiconductor Q2, light-operated inductor RH2, comparator D points, light-operated inductor RH1 and adjustment resistance R1 electrically connect with input A points on comparator, output end C points and can on comparator Silicon VS and metal-oxide-semiconductor Q2 electrical connections are controlled, output end C points control controllable silicon VS and metal-oxide-semiconductor Q2 is through switching original paper J and driving on comparator Control module（5）Electrical connection；Light-operated inductor RH2 and adjustment resistance R2 electrically connect with input B points under comparator, under comparator Output end D points electrically connect with triode Q1, and triode Q1 electrically connects with controllable silicon VS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710677070.4A CN107454716B (en) | 2017-08-09 | 2017-08-09 | Double-induction LED light-operated driving control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710677070.4A CN107454716B (en) | 2017-08-09 | 2017-08-09 | Double-induction LED light-operated driving control system |
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| Publication Number | Publication Date |
|---|---|
| CN107454716A true CN107454716A (en) | 2017-12-08 |
| CN107454716B CN107454716B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710677070.4A Active CN107454716B (en) | 2017-08-09 | 2017-08-09 | Double-induction LED light-operated driving control system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8232778B1 (en) * | 2011-01-28 | 2012-07-31 | Hamilton Sundstrand Corporation | Independent, redundant overvoltage protection for a generator |
| CN103619093A (en) * | 2013-10-29 | 2014-03-05 | 汤志新 | A LED integrated light source |
| CN103647461A (en) * | 2013-12-06 | 2014-03-19 | 西南交通大学 | Control method and apparatus of AC-DC series resonance matrix converter |
| US20140340000A1 (en) * | 2013-05-20 | 2014-11-20 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Backlight driving circuit, lcd device, and method for driving the backlight driving circuit |
| CN207491244U (en) * | 2017-08-09 | 2018-06-12 | 山东旭程照明科技有限公司 | A kind of light-operated driving control system of double induction LEDs |
-
2017
- 2017-08-09 CN CN201710677070.4A patent/CN107454716B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8232778B1 (en) * | 2011-01-28 | 2012-07-31 | Hamilton Sundstrand Corporation | Independent, redundant overvoltage protection for a generator |
| US20140340000A1 (en) * | 2013-05-20 | 2014-11-20 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Backlight driving circuit, lcd device, and method for driving the backlight driving circuit |
| CN103619093A (en) * | 2013-10-29 | 2014-03-05 | 汤志新 | A LED integrated light source |
| CN103647461A (en) * | 2013-12-06 | 2014-03-19 | 西南交通大学 | Control method and apparatus of AC-DC series resonance matrix converter |
| CN207491244U (en) * | 2017-08-09 | 2018-06-12 | 山东旭程照明科技有限公司 | A kind of light-operated driving control system of double induction LEDs |
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| Publication number | Publication date |
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| CN107454716B (en) | 2023-07-21 |
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