CN109195267B - Novel direct current intelligent LED light source and control system - Google Patents
Novel direct current intelligent LED light source and control system Download PDFInfo
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- CN109195267B CN109195267B CN201811227473.XA CN201811227473A CN109195267B CN 109195267 B CN109195267 B CN 109195267B CN 201811227473 A CN201811227473 A CN 201811227473A CN 109195267 B CN109195267 B CN 109195267B
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- 239000003990 capacitor Substances 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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]
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- 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 belongs to the technical field of electronic circuits, and provides a novel direct-current intelligent LED light source and a control system. The compensation of the power supply module is realized, the effect of driving the load by constant current is ensured, the stability of the load is ensured, and the overall efficiency of the working circuit is improved, so that the reliability, the safety and the energy conservation of the electronic equipment and the transmission line can be greatly improved; meanwhile, the controllability of the whole circuit is improved; the problem that the existing control technology for supplying power to the load through direct current has the problem that voltage drop exists on a transmission line between the output end of a power supply and a load point, so that electric equipment at the rear end cannot work normally is solved.
Description
Technical Field
The invention belongs to the technical field of electronic circuits, and particularly relates to a novel direct-current intelligent LED light source and a control system.
Background
In recent years, with the rapid development of electronic technology, low-voltage direct current circuits are increasingly widely used, and become a main trend of development of the power industry. The low-voltage direct current operation is beneficial to improving the overall efficiency and the service life of the working circuit, so that the reliability, the safety and the energy conservation of the electronic equipment can be greatly improved.
However, the lower the output voltage, the larger the output current on the transmission line, which results in a larger voltage drop on the transmission line, so that the larger the output current is, the larger the voltage drop from the output terminal of the power supply to the load point is under the same output power. Excessive pressure drop can cause the electric equipment at the rear end to work abnormally. Therefore, the load stability of the output voltage of the dc power supply (the rate of change of the output load point voltage with the change of the output current when the output is from no load to rated current) is an important index for checking the low-voltage high-current dc power supply.
Therefore, the existing control technology for supplying power to the load has the problem that a voltage drop exists on a transmission line between an output end of the power supply and a load point, so that electric equipment at the rear end cannot work normally.
Disclosure of Invention
The invention aims to provide a novel direct-current intelligent LED light source and a control system, and aims to solve the problem that the existing control technology for supplying power to a load has voltage drop on a transmission line from an output end of a power supply to a load point, so that electric equipment at the rear end cannot work normally.
The first aspect of the invention provides a novel direct current intelligent LED light source, which comprises a plurality of LED lamp groups, and the novel direct current intelligent LED light source further comprises:
the power supply module is used for supplying power to the LED lamp groups; and
The compensation module is connected with the power supply module and the LED lamp groups and used for collecting output voltages of the LED lamp groups, adjusting the reference voltage and outputting the reference voltage to the power supply module so as to compensate the power supply module and then drive the LED lamp groups in a constant current manner.
A second aspect of the present invention provides a control system comprising a load, the control system further comprising:
A power module for powering the load; and
And the compensation module is connected with the power supply module and the load and is used for collecting the output voltage of the load, adjusting the reference voltage and outputting the reference voltage to the power supply module so as to compensate the power supply module and then drive the load with constant current.
The invention provides a novel direct current intelligent LED light source and a control system, wherein the novel direct current intelligent LED light source comprises a plurality of LED lamp groups, and further comprises a power module for supplying power to the LED lamp groups, and the output voltage of the LED lamp groups is collected through a compensation module and is output to the power module after the reference voltage is regulated, so that the LED lamp groups are driven by constant current after the power module is compensated. The compensation of the power supply module is realized, the effect of driving the load by constant current is ensured, the stability of the load is ensured, and the overall efficiency of the working circuit is improved, so that the reliability, the safety and the energy conservation of the electronic equipment and the transmission line can be greatly improved; meanwhile, the controllability of the whole circuit is improved; the problem that the existing control technology for supplying power to the load through direct current has the problem that voltage drop exists on a transmission line between the output end of a power supply and a load point, so that electric equipment at the rear end cannot work normally is solved.
Drawings
Fig. 1 is a schematic block diagram of a novel dc intelligent LED light source according to an embodiment of the present invention.
Fig. 2 is an exemplary circuit diagram of a compensation module in a novel dc intelligent LED light source according to an embodiment of the present invention.
Fig. 3 is a schematic block diagram of a control system according to another embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
According to the novel direct-current intelligent LED light source and the control system, the output voltage of the LED lamp groups (loads) is collected, the reference voltage is regulated and then output to the switching power supply, and the LED lamp groups (loads) are driven by constant current after the switching power supply is compensated. Therefore, the effect of compensating the switching power supply and driving a plurality of LED lamp groups (loads) with constant current is achieved, and the stability of the loads is guaranteed.
Fig. 1 shows a module structure of a novel dc intelligent LED light source according to an embodiment of the present invention, and for convenience of explanation, only the portions related to the embodiment are shown, which are described in detail below:
The novel direct current intelligent LED light source comprises a plurality of LED lamp groups 102, and further comprises a power module 101 and a compensation module 103.
The power module 101 is used for supplying power to the plurality of LED lamp groups 102.
The compensation module 103 is connected with the power module 101 and the plurality of LED lamp groups 102, and is configured to collect output voltages of the plurality of LED lamp groups 102, and adjust the reference voltage and output the reference voltage to the power module 101, so as to compensate the power module 101 and then drive the plurality of LED lamp groups 102 with constant current.
As an embodiment of the present invention, when the power module 101 supplies power to the plurality of LED lamp sets 102, a voltage drop exists on a transmission line between the power module 101 and the plurality of LED lamp sets 102, that is, a voltage signal output by the power module 101 is lost, so that a voltage value obtained by the plurality of LED lamp sets 102 is lower than a voltage value output by the power module 101; at this time, the output voltages of the LED lamp groups 102 are collected, and then the reference voltages are adjusted and output to the power module 101, so that the power module 101 is compensated and the LED lamp groups 102 are driven with constant current. Specifically, compensating the power module 101 overcomes the voltage drop existing on the transmission line, so that the plurality of LED lamp groups 102 can work normally. Meanwhile, the controllability of the whole circuit is improved.
As an embodiment of the present invention, the power module 101 includes an AC/DC switching power supply, that is, an AC input and DC output switching power supply.
Fig. 2 shows an example circuit of a compensation module in a novel dc intelligent LED light source according to an embodiment of the present invention, and for convenience of explanation, only the parts related to the embodiment are shown, which is described in detail below:
As an embodiment of the invention, the compensation module 103 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, an adjustable resistor RP1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a photo coupler V1, a zener diode V2, a first voltage comparator N1, and a second voltage comparator N2;
Specifically, in fig. 2, SC is the SC pin of the DC-DC converter, and-S is the-S pin of the DC-DC converter. SC, -S internal reference voltage, through output voltage sampling signal, voltage sampling signal connects output voltage terminal positive, voltage sampling signal ground connects output voltage terminal negative pole, feeds back to internal reference voltage regulation output voltage, compensates.
Fig. 3 shows a block structure of a control system according to another embodiment of the present invention, and for convenience of explanation, only the portions related to this embodiment are shown, and the details are as follows:
the control system includes a load, and the control system further includes:
A power supply module (represented in fig. 3 by an AC/DC switching power supply) for supplying power to the load; and
And the compensation module is connected with the power supply module and the load and is used for collecting the output voltage of the load, adjusting the reference voltage and outputting the reference voltage to the power supply module so as to compensate the power supply module and then drive the load with constant current.
In another embodiment of the present invention, when the power module supplies power to the load, a voltage drop exists on a transmission line between the power module and the load, that is, a voltage signal output by the power module is lost, so that a voltage value obtained by the load is lower than a voltage value output by the power module; at the moment, the output voltage of the load is acquired, and the reference voltage is regulated and then output to the power module, so that the load is driven by constant current after the power module is compensated. Specifically, compensating the power module is to overcome a voltage drop existing on the transmission line, so that the load can work normally. The load can comprise an LED light source and can also be other electric equipment.
In another embodiment of the present invention, the power module includes an AC/DC switching power supply, that is, an AC input and DC output switching power supply.
The following describes the working principle of the novel direct current intelligent LED light source and the control system with reference to fig. 1 to 3:
Firstly, switching on a switching power supply, and outputting voltage signals by the switching power supply to supply power to a plurality of LED lamp groups (loads); and then, collecting output voltages of the LED lamp groups (loads), regulating the reference voltage, and outputting the regulated reference voltage to the switching power supply so as to compensate the switching power supply and then drive the LED lamp groups (loads) in a constant current manner. Therefore, the effect of compensating the switching power supply and driving a plurality of LED lamp groups (loads) with constant current is achieved, and the stability of the loads is guaranteed.
In summary, the embodiment of the invention provides a novel direct current intelligent LED light source and a control system, wherein the novel direct current intelligent LED light source comprises a plurality of LED lamp groups, the novel direct current intelligent LED light source further comprises a power module for supplying power to the LED lamp groups, output voltages of the LED lamp groups are collected through a compensation module, and the output voltages are output to the power module after reference voltage is regulated, so that the power module is compensated and then the LED lamp groups are driven by constant current. The compensation of the power supply module is realized, the effect of driving the load by constant current is ensured, the stability of the load is ensured, and the overall efficiency of the working circuit is improved, so that the reliability, the safety and the energy conservation of the electronic equipment and the transmission line can be greatly improved; meanwhile, the controllability of the whole circuit is improved; the problem that the existing control technology for supplying power to the load through direct current has the problem that voltage drop exists on a transmission line between the output end of a power supply and a load point, so that electric equipment at the rear end cannot work normally is solved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (2)
1. The utility model provides a novel direct current intelligence LED light source, includes a plurality of LED banks, its characterized in that, novel direct current intelligence LED light source still includes:
the power supply module is used for supplying power to the LED lamp groups; and
The compensation module is connected with the power supply module and the LED lamp groups, and is used for collecting output voltages of the LED lamp groups, adjusting the reference voltage and outputting the reference voltage to the power supply module so as to compensate the power supply module and then drive the LED lamp groups with constant current;
the power supply module comprises an AC/DC switching power supply;
The compensation module includes:
The voltage regulator comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, an adjustable resistor, a first capacitor, a second capacitor, a third capacitor, a photoelectric coupler, a zener diode, a first voltage comparator and a second voltage comparator;
The first end of the fourth resistor, the first end of the fifth resistor, the power end of the first voltage comparator and the power end of the second voltage comparator are commonly connected and serve as a first input end of the compensation module, the second end of the fifth resistor, the cathode of the zener diode, the first end of the third capacitor and the inverting input end of the first voltage comparator are commonly connected, the second end of the fourth resistor is commonly connected with the first end of the adjustable resistor and the positive input end of the second voltage comparator, the second end of the adjustable resistor is commonly connected with the inverting input end of the second voltage comparator and serves as a second input end of the compensation module, the output end of the second voltage comparator is connected with the first end of the second resistor, the second end of the second resistor is connected with the inverting input end of the first capacitor, the first end of the second capacitor is connected with the first end of the first light source, the first end of the second capacitor is connected with the first end of the second capacitor, the second end of the second capacitor is connected with the first end of the second light source, the second end of the second capacitor is connected with the first end of the second capacitor is connected with the second light source.
2. A control system comprising a load, the control system further comprising:
A power module for powering the load; and
The compensation module is connected with the power supply module and the load and is used for collecting the output voltage of the load, adjusting the reference voltage and outputting the reference voltage to the power supply module so as to compensate the power supply module and then drive the load with constant current;
the power supply module comprises an AC/DC switching power supply;
The compensation module includes:
The voltage regulator comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, an adjustable resistor, a first capacitor, a second capacitor, a third capacitor, a photoelectric coupler, a zener diode, a first voltage comparator and a second voltage comparator;
The first end of the fourth resistor, the first end of the fifth resistor, the power end of the first voltage comparator and the power end of the second voltage comparator are commonly connected and serve as a first input end of the compensation module, the second end of the fifth resistor, the cathode of the zener diode, the first end of the third capacitor and the inverting input end of the first voltage comparator are commonly connected, the second end of the fourth resistor is commonly connected with the first end of the adjustable resistor and the positive input end of the second voltage comparator, the second end of the adjustable resistor is commonly connected with the inverting input end of the second voltage comparator and serves as a second input end of the compensation module, the output end of the second voltage comparator is connected with the first end of the second resistor, the second end of the second resistor is connected with the inverting input end of the first capacitor, the first end of the second capacitor is connected with the first end of the first light source, the first end of the second capacitor is connected with the first end of the second capacitor, the second end of the second capacitor is connected with the first end of the second light source, the second end of the second capacitor is connected with the first end of the second capacitor is connected with the second light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811227473.XA CN109195267B (en) | 2018-10-22 | 2018-10-22 | Novel direct current intelligent LED light source and control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811227473.XA CN109195267B (en) | 2018-10-22 | 2018-10-22 | Novel direct current intelligent LED light source and control system |
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| Publication Number | Publication Date |
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| CN109195267A CN109195267A (en) | 2019-01-11 |
| CN109195267B true CN109195267B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811227473.XA Active CN109195267B (en) | 2018-10-22 | 2018-10-22 | Novel direct current intelligent LED light source and control system |
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| CN101814726A (en) * | 2010-04-14 | 2010-08-25 | 罗康林 | Battery discharge prevention circuit |
| CN102111932A (en) * | 2009-12-24 | 2011-06-29 | 冠捷投资有限公司 | A Light Emitting Diode Current Balance Circuit |
| CN102958248A (en) * | 2012-08-16 | 2013-03-06 | 欧普照明股份有限公司 | LED (Light Emitting Diode) lighting circuit |
| CN103155714A (en) * | 2012-03-19 | 2013-06-12 | 叶军 | A LED driver chip and circuit with power compensation |
| CN104540294A (en) * | 2015-01-06 | 2015-04-22 | 横店集团得邦照明股份有限公司 | Auto-excitation type LED conversion device for achieving electrodeless light dimming and control method |
| CN209710365U (en) * | 2018-10-22 | 2019-11-29 | 洪学远 | A kind of Novel DC intelligent LED light source and control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7781985B2 (en) * | 2007-09-27 | 2010-08-24 | Osram Sylvania Inc. | Constant current driver circuit with voltage compensated current sense mirror |
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2018
- 2018-10-22 CN CN201811227473.XA patent/CN109195267B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102111932A (en) * | 2009-12-24 | 2011-06-29 | 冠捷投资有限公司 | A Light Emitting Diode Current Balance Circuit |
| CN101814726A (en) * | 2010-04-14 | 2010-08-25 | 罗康林 | Battery discharge prevention circuit |
| CN103155714A (en) * | 2012-03-19 | 2013-06-12 | 叶军 | A LED driver chip and circuit with power compensation |
| CN102958248A (en) * | 2012-08-16 | 2013-03-06 | 欧普照明股份有限公司 | LED (Light Emitting Diode) lighting circuit |
| CN104540294A (en) * | 2015-01-06 | 2015-04-22 | 横店集团得邦照明股份有限公司 | Auto-excitation type LED conversion device for achieving electrodeless light dimming and control method |
| CN209710365U (en) * | 2018-10-22 | 2019-11-29 | 洪学远 | A kind of Novel DC intelligent LED light source and control system |
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| CN109195267A (en) | 2019-01-11 |
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