CN108449841A - The LED information display system and control method of a kind of controllable silicon light modulation constant-current supply and its composition - Google Patents
The LED information display system and control method of a kind of controllable silicon light modulation constant-current supply and its composition Download PDFInfo
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- CN108449841A CN108449841A CN201810422472.4A CN201810422472A CN108449841A CN 108449841 A CN108449841 A CN 108449841A CN 201810422472 A CN201810422472 A CN 201810422472A CN 108449841 A CN108449841 A CN 108449841A
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 18
- 239000010703 silicon Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 8
- 238000004891 communication Methods 0.000 claims abstract description 3
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
-
- 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]
- H05B45/20—Controlling the colour 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 kind of controllable silicon light modulation constant-current supplies, separate type AC controllers including carrying 485 communication interfaces, at least one thyristor supply being connect with separate type AC controller output ends, the thyristor supply includes fusing resistor R1, the varistor RV1 in parallel with fusing resistor R1, it is connected to the rectifier bridge BD1 at the both ends varistor RV1, the capacitance C3 being connect with rectifier bridge BD1 output ends, the capacitance C4 in parallel with capacitance C3, first series arm in parallel with capacitance C4, and it is connected to the driving chip LYT7504D at the first series arm both ends, with the transformer T1 being connected on driving chip LYT7504D.MOS copped waves are carried out to alternating current using separate type AC controllers, then the watt level of out-put supply is adjusted according to the angle of flow size of MOS copped waves, to change the input power of LED lamp, achieve the purpose that adjust the brightness of LED lamp, colour temperature, color, can effectively solve the problem that the problem of LED lamp is difficult to realize flexibly dim in the prior art.
Description
Technical field
The present invention relates to a kind of constant-current supplies, specifically, being to be related to a kind of controllable silicon light modulation constant-current supply and its composition
LED information display system and control method.
Background technology
With the fast development of science and technology, also constantly development substitutes LED product, and people want the initial of LED product
Seeking Truth is realizing that the while of illuminating realizes energy saving, and present, with the increase and transformation of LED product application scenarios, people are to LED
The requirement of product also no longer be only illumination with it is energy saving, even more to the technical indicators such as the brightness of LED product, colour temperature, color proposition
It requires.But after existing LED lamp installs in same place, be typically only capable to show fixed brightness, colour temperature and
Color can only also carry out global switch, be not only difficult to meet people and be wanted to variation of the LED product in terms of brightness, colour temperature, color
It asks, LED lamp is chronically at high brightness, high color temperature state, can also be damaged to the service life of power supply and lamp bead, be unfavorable for LED
The use steady in a long-term of product.Therefore, the transformable intellectualized LED product of the technical indicators such as brightness, colour temperature, color becomes people
The target pursued.
Invention content
The purpose of the present invention is to provide the LED information display systems and controlling party of a kind of controllable silicon light modulation constant-current supply and its composition
Method, by adjusting the output power of power supply, to solve the problems, such as the light modulation of LED product.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of controllable silicon light modulation constant-current supply includes the separate type AC controllers of included 485 communication interfaces, and with separate type AC
At least one thyristor supply of controller output end connection, which includes fusing resistor R1, with the fusing resistor
The varistor RV1 of R1 parallel connections is connected to the rectifier bridge BD1 at the both ends varistor RV1, connects with rectifier bridge BD1 output ends
The capacitance C3 connect, the capacitance C4 in parallel with capacitance C3, first series arm in parallel with capacitance C4, and be connected to this
The driving chip LYT7504D at one series arm both ends, and the transformer T1 that is connected on driving chip LYT7504D.
Further, first series arm includes the resistance R2 being serially connected and capacitance C2, and simultaneously with resistance R2
The resistance R10 of connection.
It connects branch still further, being also parallel with second between first series arm and driving chip LYT7504D
Road, second series arm include resistance R3, R4 being serially connected and capacitance C6；The pin 1 of the driving chip LYT7504D
The both ends of capacitance C6 are connected to pin 8.
The LED information display system being made of controllable silicon light modulation constant-current supply includes the separate type AC controllers being electrically connected with city, passes through
At least one thyristor supply that 485 data lines are connect with separate type AC controllers, and connect with thyristor supply to
A few LED lamp；The thyristor supply includes fusing resistor R1, the varistor RV1 in parallel with fusing resistor R1, even
It is connected on the rectifier bridge BD1 at the both ends varistor RV1, the capacitance C3 being connect with rectifier bridge BD1 output ends, simultaneously with capacitance C3
The capacitance C4 of connection, first series arm in parallel with capacitance C4, and it is connected to the driving core at the first series arm both ends
Piece LYT7504D, and the transformer T1 that is connected on driving chip LYT7504D.
The control method of the LED information display system of controllable silicon light modulation constant-current supply composition, includes the following steps：
（1）Alternating current is connected, keeps separate type AC controllers, thyristor supply, LED lamp in running order；
（2）According to scene needs, by controlling separate type AC controllers, detection 220V alternating currents whether zero passage, when zero passage then postpones
Between open-minded, output mos copped wave；
（3）Thyristor supply detects the angle of flow after MOS copped waves, and corresponding power is exported according to angle of flow size, defeated
The watt level variation for going out power supply, causes the brightness of LED lamp, colour temperature, color change, that is, realizes the light modulation of LED product.
The output end of thyristor supply connects N number of LED lamp, i.e., carries out unified light modulation to N number of LED lamp, N is nature
Number.
Compared with prior art, the invention has the advantages that：
（1）The present invention carries out MOS copped waves using separate type AC controllers to alternating current, then according to the angle of flow size of MOS copped waves
The watt level of out-put supply is adjusted, to changing the input power of LED lamp, reaches the brightness for adjusting LED lamp, color
Temperature, the purpose of color, principle is ingenious, and system design is simple, easy to implement, can effectively solve the problem that LED lamp in the prior art
The problem of being difficult to realize flexibly dim.
（2）A separate type AC controller can control multiple thyristor supplies, a thyristor supply controllable in the present invention
Multiple LED lamps are made, control object is flexible, simple to operate, has very high practical value.
Description of the drawings
Fig. 1 is a kind of system block diagram of the present invention.
Fig. 2 is another system block diagram of the present invention.
Fig. 3 is the chopper circuit schematic diagram of separate type AC controllers in the present invention.
Fig. 4 is 485 communicating circuit schematic diagrams of separate type AC controllers in the present invention.
Fig. 5 is the power supply circuit schematic diagram of separate type AC controllers in the present invention.
Fig. 6 is the zero cross detection circuit schematic diagram of separate type AC controllers in the present invention.
Fig. 7 is the schematic diagram of the thyristor supply in the present invention.
Specific implementation mode
The invention will be further described with embodiment for explanation below in conjunction with the accompanying drawings, and mode of the invention includes but not only limits
In following embodiment.
As depicted in figs. 1 and 2, the present invention is on system architecture, mainly by separate type AC controllers, thyristor supply and
LED lamp three parts form.220V alternating currents are input to silicon controlled power supply circuit after first carrying out copped wave by separate type AC controllers, can
After control silicon power circuit detects angle of flow size, change the output power of power supply, output power size according to its size variation
Variation cause the brightness of LED lamp, the variation of colour temperature, color, to realize the light modulation of LED lamp.According to actual scene
It needs, separate type AC controllers can connect a thyristor supply, can also connect multiple thyristor supplies；And each can
Control silicon power supply can freely access several LED lamps again.
Specifically, separate type AC controllers are by chopper circuit, 485 communicating circuits, power supply circuit, zero cross detection circuit group
At as shown in Figures 3 to 6.And silicon controlled power supply circuit is as shown in fig. 7, comprises fusing resistor R1, in parallel with fusing resistor R1
Varistor RV1, be connected to the rectifier bridge BD1 at the both ends varistor RV1, the electricity being connect with rectifier bridge BD1 output ends
Hold C3, the capacitance C4 in parallel with capacitance C3, first series arm in parallel with capacitance C4, and is connected to first series connection
The driving chip LYT7504D at branch both ends, and the transformer T1 that is connected on driving chip LYT7504D.
Further, first series arm includes the resistance R2 being serially connected and capacitance C2, and simultaneously with resistance R2
The resistance R10 of connection.
It connects branch still further, being also parallel with second between first series arm and driving chip LYT7504D
Road, second series arm include resistance R3, R4 being serially connected and capacitance C6；The pin 1 of the driving chip LYT7504D
The both ends of capacitance C6 are connected to pin 8.
In the present invention, to the control method of LED lamp, include the following steps：
（1）Alternating current is connected, keeps separate type AC controllers, thyristor supply, LED lamp in running order；
（2）According to scene needs, by controlling separate type AC controllers, detection 220V alternating currents whether zero passage, when zero passage then postpones
Between open-minded, output mos copped wave；
（3）Thyristor supply detects the angle of flow after MOS copped waves, and corresponding power is exported according to angle of flow size, defeated
The watt level variation for going out power supply, causes the brightness of LED lamp, colour temperature, color change, that is, realizes the light modulation of LED product.
The output end of thyristor supply connects N number of LED lamp, i.e., carries out unified light modulation to N number of LED lamp, N is nature
Number.
The present invention is simple to operate, MOS copped waves is carried out to alternating current first with separate type AC controllers, then according to MOS
The angle of flow size of copped wave changes the watt level of out-put supply, to change the input power of LED lamp, reaches adjusting
The brightness of LED lamp, colour temperature, the purpose of color, principle is ingenious, can effectively solve the problem that LED lamp is difficult to reality in the prior art
The problem of now flexibly dimming.
Above-described embodiment is only one of the preferred embodiment of the present invention, should not be taken to limit the protection model of the present invention
Enclose, as long as the present invention body design thought and that mentally makes have no the change of essential meaning or polishing, solved
The technical issues of it is still consistent with the present invention, should all be included within protection scope of the present invention.
Claims (6)
1. a kind of controllable silicon light modulation constant-current supply, which is characterized in that the separate type AC controllers including carrying 485 communication interfaces,
At least one thyristor supply being connect with separate type AC controller output ends, which includes fusing resistor
R1, the varistor RV1 in parallel with fusing resistor R1 are connected to the rectifier bridge BD1 at the both ends varistor RV1, whole with this
Capacitance C3, the capacitance C4 in parallel with capacitance C3 for flowing the connection of bridge BD1 output ends connect with the first of capacitance C4 parallel connections and prop up
Road, and it is connected to the driving chip LYT7504D at the first series arm both ends, and it is connected to driving chip LYT7504D
On transformer T1.
2. a kind of controllable silicon light modulation constant-current supply according to claim 1, which is characterized in that the first series arm packet
Include the resistance R2 being serially connected and capacitance C2, and the resistance R10 in parallel with resistance R2.
3. a kind of controllable silicon light modulation constant-current supply according to claim 2, which is characterized in that in first series arm
The second series arm is also parallel between driving chip LYT7504D, which includes the resistance being serially connected
R3, R4 and capacitance C6；The pin 1 and pin 8 of the driving chip LYT7504D are connected to the both ends of capacitance C6.
4. the LED information display system being made of the controllable silicon light modulation constant-current supply described in claim 3, which is characterized in that including with alternating current
The separate type AC controllers of connection, at least one thyristor supply being connect with separate type AC controllers by 485 data lines,
And at least one LED lamp being connect with thyristor supply；The thyristor supply includes fusing resistor R1, with fusing electricity
The varistor RV1 for hindering R1 parallel connections, is connected to the rectifier bridge BD1 at the both ends varistor RV1, with rectifier bridge BD1 output ends
The capacitance C3 of connection, the capacitance C4 in parallel with capacitance C3, first series arm in parallel with capacitance C4, and it is connected to this
The driving chip LYT7504D at the first series arm both ends, and the transformer T1 that is connected on driving chip LYT7504D.
5. the control method of the LED information display system of controllable silicon light modulation constant-current supply composition, which is characterized in that include the following steps：
（1）Alternating current is connected, keeps separate type AC controllers, thyristor supply, LED lamp in running order；
（2）According to scene needs, by controlling separate type AC controllers, detection 220V alternating currents whether zero passage, when zero passage then postpones
Between open-minded, output mos copped wave；
（3）Thyristor supply detects the angle of flow after MOS copped waves, and corresponding power is exported according to angle of flow size, defeated
The watt level variation for going out power supply, causes the brightness of LED lamp, colour temperature, color change, that is, realizes the light modulation of LED product.
6. the control method of the LED information display system of controllable silicon light modulation constant-current supply composition according to claim 5, feature exist
In the output end of thyristor supply connects N number of LED lamp, i.e., carries out unified light modulation to N number of LED lamp, N is natural number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810422472.4A CN108449841A (en) | 2018-05-05 | 2018-05-05 | The LED information display system and control method of a kind of controllable silicon light modulation constant-current supply and its composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810422472.4A CN108449841A (en) | 2018-05-05 | 2018-05-05 | The LED information display system and control method of a kind of controllable silicon light modulation constant-current supply and its composition |
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| CN108449841A true CN108449841A (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810422472.4A Pending CN108449841A (en) | 2018-05-05 | 2018-05-05 | The LED information display system and control method of a kind of controllable silicon light modulation constant-current supply and its composition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367741A (en) * | 2020-12-08 | 2021-02-12 | 珠海格力电器股份有限公司 | Lamp brightness control method, device and system and lamp equipment |
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