CN111741557A - Lamp circuit control system - Google Patents
Lamp circuit control system Download PDFInfo
- Publication number
- CN111741557A CN111741557A CN202010398537.3A CN202010398537A CN111741557A CN 111741557 A CN111741557 A CN 111741557A CN 202010398537 A CN202010398537 A CN 202010398537A CN 111741557 A CN111741557 A CN 111741557A
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- Prior art keywords
- circuit
- control
- 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]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
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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]
- H05B45/20—Controlling the colour 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]
- H05B45/30—Driver circuits
-
- 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]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to the technical field of light control, and discloses a lamp circuit control system which comprises a power circuit, a control circuit and a light source circuit which are sequentially in signal connection; the power circuit provides power for the control circuit and the light source circuit, the control circuit comprises a drive control chip, a gray control chip and a corresponding first peripheral circuit which are in signal connection, and the light source circuit comprises a light-emitting element and a protection element which are controlled by the control circuit. The invention has the effect of controlling the brightness and the gray scale of the light source, thereby being beneficial to avoiding the dazzling feeling when eyes directly look at the light source.
Description
Technical Field
The invention relates to the technical field of light control, in particular to a lamp circuit control system.
Background
LED line lamp is LED wall washer series aluminium alloy lamp body promptly, and compact light and handy end cover and installing support are by the high-pressure die-casting high temperature resistant silicon rubber seal circle of aluminum alloy, guarantee waterproof reliability. The lamp can be installed singly or in combination, and is suitable for various buildings, indoor and outdoor local or contour illumination.
The existing chinese patent with patent publication No. CN207766613U discloses a power circuit for LED line lamp, which includes: chip U1, electric rectifier bridge, resistance R1, resistance R2, resistance R3, electric capacity C3 and a plurality of LED lamp, rectifier bridge two relative interfaces, one of them interface electric connection has live wire L, another interface electric property zero line N, rectifier bridge interface electric connection that is close to live wire L has DRAIN pin 3 of chip U1, electric connection has a plurality of LED lamps between live wire L and the DRAIN pin 3, rectifier bridge interface that is close to zero line N electric connection resistance R2, resistance R3 and electric capacity C3 respectively, rectifier bridge interface that is close to zero line N ground connection, electric connection has resistance R1 between DRAIN pin 3 and VD pin 4, resistance R2, resistance R3 all electric connection the CS pin 5, electric capacity C3 electric connection VD pin 4, GND pin 6 ground connection.
The above prior art solutions have the following drawbacks: the power circuit in the above patent adopts that after an alternating current power supply is rectified into direct current through an electric rectifier bridge, the on-off of the LED lamp is directly controlled through a chip U1, although the circuit is simple, the LED lamp only has on-off control, and especially when the current is large, the brightness of the LED lamp is large, and discomfort is easily brought to eyes when the eyes are directly seen.
Disclosure of Invention
In view of the shortcomings of the prior art, it is an object of the present invention to provide a lamp circuit control system for controlling the brightness and gray scale of a light source, thereby avoiding glare when eyes are looking straight.
The above object of the present invention is achieved by the following technical solutions:
a lamp circuit control system comprises a power circuit, a control circuit and a light source circuit which are sequentially connected through signals; the power supply circuit provides power for the control circuit and the light source circuit, the control circuit comprises a drive control chip, a gray scale control chip and a corresponding first peripheral circuit, the drive control chip and the gray scale control chip are in signal connection, the light source circuit comprises a light-emitting element and a protection element, the light-emitting element is controlled by the control circuit, and an optical layer with a set beam angle covers the light-emitting element.
Through adopting above-mentioned technical scheme, power supply circuit provides the power for control circuit and light source circuit, control circuit output control signal is to the luminous condition of light source circuit light emitting component in with control light source circuit, wherein drive control chip control light emitting component's the electricity that gets, grey level control chip is used for controlling light emitting component's the degree of putting on or off, protective element plays the effect of protection light emitting component, and the light that light emitting component sent changes through the angle of optical layer, thereby make the light that light emitting component sent can adjust the degree of putting on or off and grey level and shine according to the refraction angle of optical layer, make the light that light emitting component sent put on or off adjustable and more than, consequently, be favorable to avoiding eyes dazzling when looking directly softly.
The present invention in a preferred example may be further configured to: the gray control chip is set as a control chip UCS512EH, and pins 6 and 7 of a signal input end of the control chip UCS512EH are electrically connected to output ends of external control signals A and B through protective resistors respectively.
By adopting the technical scheme, the control signals A and B are differential signals, and the differential signals are input into the control chip UCS512EH, so that the control chip UCS512EH outputs signals with different frequencies to the driving control chip, and the light-emitting element driven by the driving control chip emits light with different gray scales.
The present invention in a preferred example may be further configured to: the driving control chip comprises a plurality of stages of driving chips UCS9812 connected in series, cascade resistors are electrically connected between a pin 2 of a signal output end of the driving chip UCS9812 at the previous stage and a pin 16 of a signal input end of the driving chip UCS9812 at the next stage, and a pin 3 of a signal output end of the control chip UCS512EH is electrically connected to a pin 16 of a signal input end of the driving chip UCS9812 at the first stage.
By adopting the technical scheme, the driving chips UCS9812 connected in series in multiple stages are connected end to end, each driving chip UCS9812 is provided with 12 signal driving ends for controlling 12 branches containing light-emitting elements, and the number of the driving chips UCS9812 connected in series is n, namely 12 x n branches containing light-emitting elements are controlled.
The present invention in a preferred example may be further configured to: the drive chip UCS9812 is arranged in four stages in series.
By adopting the above technical scheme, 12 × 4=48 branches including light emitting elements can be controlled.
The present invention in a preferred example may be further configured to: the cascade resistor is provided with a plurality of load resistors connected in series.
By adopting the technical scheme, the load resistors connected in series are beneficial to increasing the load of the circuit, so that the sensitivity to external high-frequency signals is reduced.
The present invention in a preferred example may be further configured to: the first peripheral circuit comprises a gray-scale control pull-up resistor arranged at a power supply end pin 8 of the control chip UCS512EH, and the end is grounded through a filter element; the drive chip UCS9812 also comprises a drive pull-up resistor arranged at a power end 1 pin of the drive chip UCS9812, and the end is grounded through a filter element; the device also comprises a first resistor arranged between the pin 5 of the drive chip UCS9812 and an external PI signal input end.
By adopting the technical scheme, the first peripheral circuit adopts the following structure.
The present invention in a preferred example may be further configured to: the power circuit is configured as a DC24V to DC12V circuit, including a buck converter MP2560DN and its corresponding second peripheral circuit.
By adopting the technical scheme, the external direct-current 24V power voltage is reduced to be the direct-current 12V power voltage through the buck converter MP2560DN, power is provided for the driving control chip, the gray control chip and the light-emitting element, and the second peripheral circuit ensures the stability of the direct-current 12V power output.
The present invention in a preferred example may be further configured to: the light source circuit comprises a plurality of parallel light-emitting element branches, each light-emitting element branch comprises a plurality of LED lamps and protective resistors which are connected in series, and the light-emitting element branches are powered by a DC12V power supply and are controlled by the control circuit.
By adopting the technical scheme, the light-emitting element branches are connected in parallel at the position of the direct current power supply 12V, power is supplied by the direct current power supply 12V, and the control circuit drives the light-emitting elements to be turned on or off and controls the gray scale of the light-emitting elements.
The present invention in a preferred example may be further configured to: the beam angle of the optical layer is set to 20 °, 30 °, 45 °, 25 ° × 45 °, 10 ° × 60 °.
By adopting the technical scheme, when the light-emitting element emits light, the light-emitting layer surface of the lamp body has no obvious granular sensation through different beam angles on the optical layer, so that glare is reduced, and the glare sensation when eyes look straight is avoided.
The present invention in a preferred example may be further configured to: the widths of the light outlets corresponding to the optical layer are set to be four types of 3mm, 4mm, 5mm and 6 mm.
By adopting the technical scheme, the size of the light outlet is favorable for enabling the light to irradiate from the light outlet and not to shield most of the light, and the brightness of the light is favorably improved.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the driving control chip controls the power on of the light-emitting element, the gray control chip is used for controlling the on-off degree of the light-emitting element, and the light emitted by the light-emitting element is changed through the angle of the optical layer, so that the light emitted by the optical element is irradiated according to the refraction angle of the optical layer, and the glare feeling of eyes in direct vision can be avoided;
2. the driving chips UCS9812 connected in series in multiple stages are used for controlling multiple branches containing light emitting elements, and the number of the driving chips UCS9812 connected in series is n, that is, at most, the driving chips UCS9812 can be used for controlling 12 × n branches containing light emitting elements;
3. different beam angles on the optical layer enable the light emitted by the lamp body to be soft, and glare and dazzling feeling when eyes are directly watched are reduced.
Drawings
FIG. 1 is a system block diagram of an embodiment;
FIG. 2 is a circuit diagram (one) of a control circuit provided by the embodiment;
FIG. 3 is a circuit diagram of a control circuit according to an embodiment (II);
FIG. 4 is a circuit diagram (one) of a light source circuit provided by the embodiment;
fig. 5 is a circuit diagram (two) of a light source circuit provided by the embodiment;
FIG. 6 is a circuit diagram of a power supply circuit provided by an embodiment;
fig. 7 is an exploded schematic view of a lamp provided by the embodiment, which is mainly used for displaying an optical layer and a light outlet.
Reference numerals: 1. a power supply circuit; 2. a control circuit; 3. a light source circuit; 4. a driving control chip; 5. a gray scale control chip; 6. a first peripheral circuit; 7. a light emitting element; 8. a protective element; 9. an optical layer; 10. a second peripheral circuit; 11. a light emitting element branch; 12. a buck converter; 13. and a light outlet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, a lamp circuit control system disclosed in the present invention includes a power circuit 1, a control circuit 2 and a light source circuit 3, which are connected in sequence by signals. The power supply circuit 1 supplies power to the control circuit 2 and the light source circuit 3, and the control circuit 2 comprises a drive control chip 4, a gray scale control chip 5 and a corresponding first peripheral circuit 6 which are in signal connection. The light source circuit 3 includes a light emitting element 7 and a protection element 8 controlled by the control circuit 2.
Referring to fig. 2 and 3, the gray control chip 5 is configured as a control chip UCS512EH, and pins 6 and 7 of a signal input terminal of the control chip UCS512EH are electrically connected to output terminals of external control signals a and B through protection resistors, respectively.
The driving control chip 4 includes a plurality of stages of driving chips UCS9812 connected in series, and the number of stages of the driving chips UCS9812 is preferably set to four stages. A cascade resistor is electrically connected between the pin 2 at the signal output end of the upper-stage driver chip UCS9812 and the pin 16 at the signal input end of the lower-stage driver chip UCS9812, the cascade resistor is provided with a plurality of load resistors connected in series, the number of the preferred load resistors is two, and the resistance value of each load resistor is set to be 100 Ω. The 3 pin of the signal output end of the control chip UCS512EH is electrically connected to the 16 pin of the signal input end of the first-stage drive chip UCS 9812. Four stages of driving chips UCS9812 connected end to end in series are provided, each driving chip UCS9812 is provided with 12 signal driving terminals for controlling 12 branches containing light-emitting elements 7, and the number of the driving chips UCS9812 connected in series is 4, that is, for controlling 12 × 4=48 branches containing light-emitting elements 7.
The first peripheral circuit 6 includes a gradation control pull-up resistor provided at a power supply terminal of the control chip UCS512EH, and the terminal is grounded through a filter element; the device also comprises a power supply end 1 pin arranged on the drive chip UCS9812, which is electrically connected with a drive pull-up resistor and is grounded through a filter element.
Referring to fig. 4 and 5, the light source circuit 3 includes 48 parallel light emitting element branches 11, and each light emitting element branch 11 includes 3 series-connected LED lamps and 1 protection resistor. One end of the light-emitting element branch 11 where the anode of the LED lamp is located is electrically connected to the DC12V power supply, and the other end is electrically connected to the signal control end of the four-stage series driving chip UCS 9812. And every 3 luminous element branches 11 are a section, and three parallel LED lamps vertically corresponding to the three luminous element branches 11 are covered on the LED lamps by an optical layer 9 with a set angle. Therefore, the light source circuit 3 has 16 segments in total.
Referring to fig. 6, the power supply circuit 1 is configured as a DC24V to DC12V buck circuit, and includes a buck converter 12, the buck converter 12 being configured as an MP2560DN and its corresponding second peripheral circuit 10, the second peripheral circuit 10 including a plurality of filter capacitors connected in parallel.
Referring to fig. 7, the light emitting element 7 is covered with an optical layer 9 for setting a beam angle. The widths of the light outlets 13 corresponding to the optical layers 9 are set to be four kinds, namely 3mm, 4mm, 5mm and 6mm, and the beam angle of the optical layers 9 is set to be 20 °, 30 °, 45 °, 25 ° by 45 ° and 10 ° by 60 °.
The electrical parameters provided by the invention are set as follows: lamp power 10W-15W, color temperature: 2700K or 3000K or 4000K or RGB, low voltage DC24V input, DMX512 control, 1 meter 16 segments of white light or RGB control.
UCS512EH is compatible with and extends DMX512 (1990) signal protocol, pure retransmission 128-channel high-luminance 16-bit single-wire IC UCS8903B/UCS8904B/UCS9812S can specify the color of the power-on lamp, restore the specified power-on color after signal failure, and can retransmit 512 signals by multiple times. UCS9812 is a serial LED driver chip.
The implementation principle of the embodiment is as follows: the power circuit 1 converts DC24V into DC12V to provide DC12V power for the control circuit 2 and the light source circuit 3, the control circuit 2 controls the light emitting of the light emitting element 7 in the light source circuit 3, the drive control chip 4 controls the power on of the light emitting element 7, and the gray scale control chip 5 controls the on-off degree of the light emitting element 7. The optical layer 9 scatters light emitted by the light-emitting element 7, so that the light irradiated through the optical layer 9 becomes soft, and glare when eyes look straight is avoided.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A lamp circuit control system, characterized in that: comprises a power circuit (1), a control circuit (2) and a light source circuit (3) which are connected in sequence by signals; the power supply circuit (1) provides power for the control circuit (2) and the light source circuit (3), the control circuit (2) comprises a drive control chip (4) and a gray scale control chip (5) which are connected through signals and a corresponding first peripheral circuit (6), the light source circuit (3) comprises a light-emitting element (7) and a protection element (8) which are controlled by the control circuit (2), and an optical layer (9) with a set beam angle covers the light-emitting element (7).
2. A lamp circuit control system as claimed in claim 1, wherein: the gray control chip (5) is arranged as a control chip UCS512EH, and a signal input end 6 pin and a signal input end 7 pin of the control chip UCS512EH are electrically connected to output ends of external control signals A and B through protective resistors respectively.
3. A lamp circuit control system as claimed in claim 2, wherein: the drive control chip (4) comprises a plurality of stages of drive chips UCS9812 connected in series, a cascade resistor is electrically connected between a pin 2 of a signal output end of the drive chip UCS9812 at the upper stage and a pin 16 of a signal input end of the drive chip UCS9812 at the lower stage, and a pin 3 of a signal output end of the control chip UCS512EH is electrically connected to a pin 16 of a signal input end of the drive chip UCS9812 at the first stage.
4. A lamp circuit control system as claimed in claim 3, wherein: the drive chip UCS9812 is arranged in four stages in series.
5. A lamp circuit control system as claimed in claim 3, wherein: the cascade resistor is provided with a plurality of load resistors connected in series.
6. A lamp circuit control system as claimed in claim 3, wherein: the first peripheral circuit (6) comprises a gray-scale control pull-up resistor arranged at a power supply end pin 8 of the control chip UCS512EH, and the end is grounded through a filter element; the drive chip UCS9812 also comprises a drive pull-up resistor arranged at a power end 1 pin of the drive chip UCS9812, and the end is grounded through a filter element; the device also comprises a first resistor arranged between the pin 5 of the drive chip UCS9812 and an external PI signal input end.
7. A lamp circuit control system as claimed in claim 1, wherein: the power supply circuit (1) is arranged as a DC24V to DC12V circuit, and comprises a buck converter (12) MP2560DN and a corresponding second peripheral circuit (10).
8. A lamp circuit control system as claimed in claim 1, wherein: the light source circuit (3) comprises a plurality of light-emitting element branches (11) connected in parallel, each light-emitting element branch (11) comprises a plurality of LED lamps and protective resistors connected in series, and the light-emitting element branches (11) are powered by a DC12V power supply and are controlled by the control circuit (2).
9. A lamp circuit control system as claimed in claim 1, wherein: the beam angle of the optical layer (9) is set to 20 °, 30 °, 45 °, 25 ° × 45 °, 10 ° × 60 °.
10. A lamp circuit control system as claimed in claim 9, wherein: the width of the light outlet (13) corresponding to the optical layer (9) is set to be four of 3mm, 4mm, 5mm and 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398537.3A CN111741557A (en) | 2020-05-12 | 2020-05-12 | Lamp circuit control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398537.3A CN111741557A (en) | 2020-05-12 | 2020-05-12 | Lamp circuit control system |
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| Publication Number | Publication Date |
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| CN111741557A true CN111741557A (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398537.3A Pending CN111741557A (en) | 2020-05-12 | 2020-05-12 | Lamp circuit control system |
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| CN (1) | CN111741557A (en) |
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| US20020070688A1 (en) * | 1997-08-26 | 2002-06-13 | Dowling Kevin J. | Light-emitting diode based products |
| US20030137258A1 (en) * | 1997-08-26 | 2003-07-24 | Colin Piepgras | Light emitting diode based products |
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| CN207555308U (en) * | 2017-10-25 | 2018-06-29 | 浙江晶日照明科技有限公司 | A kind of LED lamp of anti-dazzle arrow beam of light |
| CN207674187U (en) * | 2017-11-16 | 2018-07-31 | 广州凯图电气股份有限公司 | A kind of LED anti-dazzles polarisation wall lamp |
| WO2019203760A2 (en) * | 2018-03-09 | 2019-10-24 | Teknolüks Endüstri̇yel Metal Ve Plasti̇k Sanayi̇ Ti̇caret Li̇mi̇ted Şi̇rketi̇ | Lighting system based on sight blocking and multiple reflection for point and directional light sources |
| CN110784962A (en) * | 2018-07-30 | 2020-02-11 | 上海雷舞照明技术有限公司 | Cascaded lighting system and lighting method |
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2020
- 2020-05-12 CN CN202010398537.3A patent/CN111741557A/en active Pending
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| US20020070688A1 (en) * | 1997-08-26 | 2002-06-13 | Dowling Kevin J. | Light-emitting diode based products |
| US20030137258A1 (en) * | 1997-08-26 | 2003-07-24 | Colin Piepgras | Light emitting diode based products |
| CN101298904A (en) * | 2008-06-25 | 2008-11-05 | 林洺锋 | LED wall washing lamp |
| US20140306612A1 (en) * | 2011-11-05 | 2014-10-16 | Optovate Limited | Illumination system |
| CN103152910A (en) * | 2013-01-23 | 2013-06-12 | 南充市蜀华照明科技有限公司 | External control wall washer lamp driving controller |
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