CN111555591A - Passive element integrated device of single-channel LED drive circuit - Google Patents
Passive element integrated device of single-channel LED drive circuit Download PDFInfo
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- CN111555591A CN111555591A CN202010475684.6A CN202010475684A CN111555591A CN 111555591 A CN111555591 A CN 111555591A CN 202010475684 A CN202010475684 A CN 202010475684A CN 111555591 A CN111555591 A CN 111555591A
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- 238000004804 winding Methods 0.000 claims abstract description 56
- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims description 90
- 230000005284 excitation Effects 0.000 claims description 3
- 230000003313 weakening effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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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
- H05B45/3725—Switched mode power supply [SMPS]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0064—Magnetic structures combining different functions, e.g. storage, filtering or transformation
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
Abstract
The invention discloses a passive element integrated device of a single-channel LED driving circuit. The passive element integrated device is formed by winding a first integrated winding and a second integrated winding on a pair of magnetic cores; the first integrated winding and the second integrated winding are respectively wound on the left side column and the right side column of the magnetic core, and the winding directions are the same; the first integrated winding forms a lumped equivalent circuit which is a four-end network consisting of a primary side and a secondary side of the first transformer, and the second integrated winding forms a lumped equivalent circuit which is a multi-end network consisting of a primary side and a secondary side of the second transformer, two resonant inductors and two resonant capacitors. The invention integrates two resonance inductors, two resonance capacitors and two transformers into a pair of magnetic elements by using two integrated windings, thereby not only reducing the volume of passive elements, but also weakening the influence of element distribution parameters on the circuit performance.
Description
Technical Field
The invention relates to a switching power supply device, in particular to a passive element integrated device of a single-channel LED driving circuit.
Background
Under the global energy saving and emission reduction trend in recent years, a representative LED of novel technology and energy is a novel illumination light source, and compared with the traditional light source, the novel LED illumination light source has the advantages of high efficiency, energy conservation, no pollution, long service life, low power consumption and the like. But the driving circuit of a single LED requires a large number of active and passive components. Meanwhile, the single-channel LED driving circuit has the advantages of high efficiency and small number of devices.
The single-channel LED driving circuit mainly comprises a power supply, an energy storage capacitor, a transformer, a resonant inductor, a resonant capacitor, a switching tube and a rectification output. The single-channel LED driving circuit can provide good and stable power supply for a plurality of LEDs on the premise of reducing the number of driving circuit devices and improving the efficiency.
The single-channel LED driving circuit comprises the following passive elements: two transformers, a resonant inductor, two resonant capacitors, etc. Generally, these passive elements are implemented as discrete elements, and not only are the number of elements large, but also the shapes and sizes of the elements are different, and the space utilization rate is not high. In a switching power supply, the power density of power electronic equipment is greatly reduced by using discrete components, and even parasitic parameters of the discrete components, such as equivalent parallel capacitance of inductance, pin inductance of capacitance and wiring layout, can have adverse effects on the performance of the whole circuit.
Disclosure of Invention
In order to solve the technical problems, the invention provides a passive element integrated device of a single-channel LED drive circuit, which has the advantages of simple structure, small volume and high space utilization rate.
The technical scheme for solving the problems is as follows: a passive element integrated device of a single-channel LED drive circuit comprises a first integrated winding, a second integrated winding, a first E-shaped magnetic core and a second E-shaped magnetic core; the first E-shaped magnetic core is positioned above the second E-shaped magnetic core and is oppositely contacted with the second E-shaped magnetic core, and air gaps are formed between the left side column and the right side column of the two opposite E-shaped magnetic cores; the first integrated winding is wound on the left side column of the magnetic core; the second integrated winding is wound on the right column of the magnetic core, and the winding directions are the same; the first integrated winding is sequentially arranged into a first insulating film, a first conductor film, a second insulating film and a second conductor film from inside to outside, and the second integrated winding is sequentially arranged into a third insulating film, a third conductor film, a fourth insulating film, a fourth conductor film, a first leakage inductance film, a fifth insulating film, a fifth conductor film, a first dielectric film, a sixth conductor film, a second dielectric film and a seventh conductor film from inside to outside.
In the passive element integrated device of the single-channel LED driving circuit, the right end of the first conductor film in the first integrated winding is connected with the output end of the rectifier bridge, and the left end of the first conductor film is connected with the anode of the sixth diode; the right end of a second conductor film in the first integrated winding is connected with the cathode of a fifth diode, and the left end of the second conductor film is connected with the drain electrode of the switching tube; the right end of a third conductor film in the second integrated winding is connected with the left end of a fourth conductor film, and the left end of the third conductor film is connected with the anode of a seventh diode; the left end of a fourth conductor film in the second integrated winding is connected with the right end of the third conductor film, and the right end of the fourth conductor film is connected with the anode of an eighth diode; the right end of a fifth conductor film in the second integrated winding is connected with the right end of a seventh conductor film; the left end of the sixth conductor film is connected with the drain electrode of the switch tube; the right end of the seventh conductor film is connected with the source electrode of the switch tube.
In the passive element integrated device of the single-channel LED driving circuit, the first conductor film in the first integrated winding forms a primary side of a first transformer, and the second conductor film in the first integrated winding forms a secondary side of the first transformer; the third conductor film in the second integrated winding forms a first secondary side of a second transformer, the fourth conductor film forms a second secondary side of the second transformer, the fifth conductor film forms a primary side of the second transformer, an air gap is formed in a right column of an E-E type magnetic core formed by the first E type magnetic core and the second E type magnetic core to form an excitation inductor of the transformer to serve as a parallel resonance inductor, a first leakage inductor film positioned between the primary side and the second secondary side of the second transformer is used for adjusting the size of leakage inductor, the leakage inductor of the transformer forms a series resonance inductor, a series resonance capacitor is formed by a first dielectric film positioned between the fifth conductor film and a sixth conductor film, and a parallel resonance capacitor is formed by a second dielectric film positioned between the sixth conductor film and a seventh conductor film.
The invention has the beneficial effects that: according to the invention, two transformers, one resonant inductor and two resonant capacitors in the passive element integration device of the single-channel LED driving circuit are all integrated in a pair of magnetic elements, so that the space utilization rate of the inductor and capacitor elements can be effectively improved, the number and the volume of the passive elements are reduced, and the influence of parasitic oscillation of element distribution parameters on the circuit performance is weakened.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the explosive structure of the present invention.
Fig. 3 is a schematic diagram of the working structure of the present invention.
FIG. 4 is a schematic diagram of a lumped parameter model of the apparatus according to the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, fig. 2, fig. 3, and fig. 4, a passive component integrated device of a single-channel LED driving circuit includes a first integrated winding 1, a second integrated winding 2, a first E-shaped magnetic core 3, and a second E-shaped magnetic core 4; the first E-shaped magnetic core 3 is positioned above the second E-shaped magnetic core 4 and is oppositely contacted with the second E-shaped magnetic core 4, and air gaps are arranged on the left and right side columns of the two opposite E-shaped magnetic cores; the first integrated winding 1 is wound on the left side columns of the first E-shaped magnetic core 3 and the second E-shaped magnetic core 4, and the second integrated winding 2 is wound on the right side columns of the first E-shaped magnetic core 3 and the second E-shaped magnetic core 4; the winding directions of the first integrated winding 1 and the second integrated winding 2 are the same; the first integrated winding 1 is sequentially arranged into a first insulating film 5, a first conductor film 6, a second insulating film 7 and a second conductor film 8 from inside to outside, and the second integrated winding is sequentially arranged into a third insulating film 9, a third conductor film 10, a fourth insulating film 11, a fourth conductor film 12, a first leakage inductance film 13, a fifth insulating film 14, a fifth conductor film 15, a first dielectric film 16, a sixth conductor film 17, a second dielectric film 18 and a seventh conductor film 19 from inside to outside.
The right end of a first conductor film 6 in the first integrated winding 1 is connected with the output end 20 of the rectifier bridge, and the left end of the first conductor film 6 is connected with the anode 21 of a sixth diode; the right end of a second conductor film 8 in the first integrated winding 1 is connected with a cathode 24 of a fifth diode, and the left end of the second conductor film 8 is connected with a drain 23 of a switching tube; the right end of a third conductor film 10 in the second integrated winding 2 is connected with the left end of a fourth conductor film 12, and the left end of the third conductor film 10 is connected with a seventh diode anode 25; the left end of a fourth conductor film 12 in the second integrated winding 2 is connected with the right end of a third conductor film 10, and the right end of the fourth conductor film 12 is connected with an eighth diode anode 26; the right end of a fifth conductor film 15 in the second integrated winding 2 is connected with the right end of a seventh conductor film 19; the left end of the sixth conductor film 17 is connected with the drain electrode 22 of the switch tube; the right end of the seventh conductor film 19 is connected with the source electrode 27 of the switch tube.
The first conductor film 6 in the first integrated winding 1 forms a primary side of a first transformer, and the second conductor film 8 in the first integrated winding 1 forms a secondary side of the first transformer; the third conductor film 10 in the second integrated winding 2 forms a first secondary side of a second transformer, the fourth conductor film 12 forms a second secondary side of the second transformer, the fifth conductor film 15 forms a primary side of the second transformer, an air gap is formed in a right column of an E-E type magnetic core formed by the first E type magnetic core 3 and the second E type magnetic core 4 to form an excitation inductor 37 of the transformer, the first leakage inductance film 13 positioned between the primary side and the second secondary side of the second transformer is used for adjusting the size of leakage inductance, the leakage inductance of the transformer forms a series resonance inductor 34, the series resonance capacitor 35 is formed by the first dielectric film 16 positioned between the fifth conductor film 15 and the sixth conductor film 17, and the parallel resonance capacitor 36 is formed by the second dielectric film 18 positioned between the sixth conductor film 17 and the seventh conductor film 19.
After connection, a lumped parameter model of the passive integration approach is shown in fig. 4.
The above-described embodiments are intended to illustrate rather than to limit the invention, and any modifications and variations of the present invention are within the spirit of the invention and the scope of the claims.
Claims (3)
1. The utility model provides a single channel LED drive circuit's passive component integrated device which characterized in that: the transformer comprises a first integrated winding, a second integrated winding, a first E-shaped magnetic core and a second E-shaped magnetic core; the first E-shaped magnetic core is positioned above the second E-shaped magnetic core and is oppositely contacted with the second E-shaped magnetic core, and air gaps are formed between the left side column and the right side column of the two opposite E-shaped magnetic cores; the first integrated winding is wound on the left column of the magnetic core; the second integrated winding is wound on the right column of the magnetic core, and the winding directions are the same; the first integrated winding is sequentially arranged into a first insulating film, a first conductor film, a second insulating film and a second conductor film from inside to outside, and the second integrated winding is sequentially arranged into a third insulating film, a third conductor film, a fourth insulating film, a fourth conductor film, a first leakage inductance film, a fifth insulating film, a fifth conductor film, a first dielectric film, a sixth conductor film, a second dielectric film and a seventh conductor film from inside to outside.
2. The passive element integrated device of the single-channel LED driving circuit according to claim 1, wherein: the right end of a first conductor film in the first integrated winding is connected with the output end of the rectifier bridge, and the left end of the first conductor film is connected with the anode of a sixth diode; the right end of a second conductor film in the first integrated winding is connected with the cathode of a fifth diode, and the left end of the second conductor film is connected with the drain electrode of the switching tube; the right end of a third conductor film in the second integrated winding is connected with the left end of a fourth conductor film, and the left end of the third conductor film is connected with the anode of a seventh diode; the left end of a fourth conductor film in the second integrated winding is connected with the right end of the third conductor film, and the right end of the fourth conductor film is connected with the anode of an eighth diode; the right end of a fifth conductor film in the second integrated winding is connected with the right end of a seventh conductor film; the left end of the sixth conductor film is connected with the drain electrode of the switch tube; the right end of the seventh conductor film is connected with the source electrode of the switch tube.
3. The passive component integrated device of the single-channel LED driving circuit according to claim 2, wherein: a first conductor film in the first integrated winding forms a primary side of a first transformer, and a second conductor film in the first integrated winding forms a secondary side of the first transformer; the third conductor film in the second integrated winding forms a first secondary side of a second transformer, the fourth conductor film forms a second secondary side of the second transformer, the fifth conductor film forms a primary side of the second transformer, an air gap is formed in a right column of an E-E type magnetic core formed by the first E type magnetic core and the second E type magnetic core to form an excitation inductor of the transformer to serve as a parallel resonance inductor, a first leakage inductor film positioned between the primary side and the second secondary side of the second transformer is used for adjusting the size of leakage inductor, the leakage inductor of the transformer forms a series resonance inductor, a series resonance capacitor is formed by a first dielectric film positioned between the fifth conductor film and a sixth conductor film, and a parallel resonance capacitor is formed by a second dielectric film positioned between the sixth conductor film and a seventh conductor film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010475684.6A CN111555591A (en) | 2020-05-29 | 2020-05-29 | Passive element integrated device of single-channel LED drive circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010475684.6A CN111555591A (en) | 2020-05-29 | 2020-05-29 | Passive element integrated device of single-channel LED drive circuit |
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| Publication Number | Publication Date |
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| CN111555591A true CN111555591A (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010475684.6A Pending CN111555591A (en) | 2020-05-29 | 2020-05-29 | Passive element integrated device of single-channel LED drive circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599328A (en) * | 2020-12-16 | 2021-04-02 | 湘潭大学 | Passive element integrated device for high-frequency multi-resonance fluorescent lamp ballast |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101593606A (en) * | 2009-03-30 | 2009-12-02 | 浙江大学 | Full-integrated EMI filter based on flexible multi-layer tapes |
| CN102510268A (en) * | 2011-11-30 | 2012-06-20 | 聚信科技有限公司 | Transformer and capacitor integrated device and manufacturing method |
| US20120273932A1 (en) * | 2011-04-29 | 2012-11-01 | Huawei Technologies Co., Ltd. | Power supply module and packaging and integrating method thereof |
| CN108233680A (en) * | 2018-01-30 | 2018-06-29 | 湘潭大学 | A kind of passive element integrating device applied to CLCL controlled resonant converters |
| CN108806942A (en) * | 2018-06-12 | 2018-11-13 | 湘潭大学 | A kind of passive element integrating device of multi-channel LED driving circuit |
-
2020
- 2020-05-29 CN CN202010475684.6A patent/CN111555591A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101593606A (en) * | 2009-03-30 | 2009-12-02 | 浙江大学 | Full-integrated EMI filter based on flexible multi-layer tapes |
| US20120273932A1 (en) * | 2011-04-29 | 2012-11-01 | Huawei Technologies Co., Ltd. | Power supply module and packaging and integrating method thereof |
| CN102510268A (en) * | 2011-11-30 | 2012-06-20 | 聚信科技有限公司 | Transformer and capacitor integrated device and manufacturing method |
| CN108233680A (en) * | 2018-01-30 | 2018-06-29 | 湘潭大学 | A kind of passive element integrating device applied to CLCL controlled resonant converters |
| CN108806942A (en) * | 2018-06-12 | 2018-11-13 | 湘潭大学 | A kind of passive element integrating device of multi-channel LED driving circuit |
Non-Patent Citations (1)
| Title |
|---|
| CHENG DENG: "A Novel Passive Integrated Unit for A Single-Stage LED Driver", 《2020 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC)》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599328A (en) * | 2020-12-16 | 2021-04-02 | 湘潭大学 | Passive element integrated device for high-frequency multi-resonance fluorescent lamp ballast |
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