CN210928068U - 0-10v isolation dimming drive circuit - Google Patents
0-10v isolation dimming drive circuit Download PDFInfo
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- CN210928068U CN210928068U CN201921838213.6U CN201921838213U CN210928068U CN 210928068 U CN210928068 U CN 210928068U CN 201921838213 U CN201921838213 U CN 201921838213U CN 210928068 U CN210928068 U CN 210928068U
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Abstract
The utility model relates to the technical field of LED lamp dimming, in particular to a 0-10V isolation dimming drive circuit, which comprises a differential mode common film filter circuit, a rectifier circuit, a pi-shaped filter circuit, a power control circuit, a 0-10V dimming module, an LDO power supply circuit, an RCD absorption circuit, a transformer and an output circuit; an anti-interference suppression circuit is also connected between the 0-10V dimming module and the output circuit or between the 0-10V dimming module and the power control circuit; the utility model discloses a transformer is kept apart, through adjust luminance between module and output circuit or 0-10V adjust luminance between module and the power control circuit increase an anti-interference suppression circuit between module to can eliminate because of the secondary limit of transformer increases the signal interference that the windage brought and adjust luminance the problem that the lamp glimmered in-process appears.
Description
Technical Field
The utility model relates to a LED lamps and lanterns technical field that adjusts luminance, concretely relates to 0-10v keep apart drive circuit that adjusts luminance.
Background
The 0-10V dimming technology is one of the existing dimming technologies and is widely applied to an LED lamp driving circuit, and the traditional 0-10V dimming circuit generally adopts a non-isolation technology, so that the insulation strength is low, potential safety hazards are easy to exist, and electric shock risks are generated. With the improvement of safety awareness and the upgrading of safety standard requirements of people, the 0-10V dimming circuit needs to be isolated from other circuits, for example, an isolation transformer is adopted for isolation, and a winding is added on the secondary side of the transformer to supply power to the 0-10V dimming module, so that the secondary winding of the transformer is increased, the interference of circuit signals is increased in the test process, the EMC performance is poor, and meanwhile, the phenomenon of lamp flicker occurs in the dimming process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a 0-10v keeps apart drive circuit that adjusts luminance aims at solving the problem among the prior art that above-mentioned background art provided.
The above technical problem of the present invention can be solved by the following technical solutions: A0-10V isolation dimming drive circuit comprises a differential mode common-film filter circuit, a rectifier circuit, a pi-type filter circuit, a power supply control circuit, a 0-10V dimming module, an LDO power supply circuit, an RCD absorption circuit, a transformer and an output circuit; the input end of the differential mode common membrane filter circuit is connected with a mains supply, and the output end of the differential mode common membrane filter circuit is connected with the input end of the rectifying circuit; the output end of the rectification circuit is connected with the input end of the pi-type filter circuit, the output end of the pi-type filter circuit is connected with one input end of the power supply control circuit, the other input end of the power supply control circuit is connected with the output end of the LDO power supply circuit, the output end of the power supply control circuit is connected with the input end of the 0-10V dimming module, the input end of the LDO power supply circuit is connected with one primary winding of the transformer, the other primary winding of the transformer is connected with the RCD absorption circuit, one secondary winding of the transformer is connected with the input end of the output circuit, the other secondary winding is connected with the 0-10V dimming module, the output end of the output circuit is connected with the LED load, and an anti-interference suppression circuit is further connected between the 0-10V dimming module and the output circuit or between the 0-10V dimming module and the power control circuit.
It is further provided that the interference rejection circuit includes at least one capacitor.
It is a further arrangement that the interference rejection circuit includes a capacitor.
Preferably, the capacitor is a Y capacitor.
Further, the size of the Y capacitor is 400V/2.2 nF.
Preferably, the capacitance is an X capacitance.
Further, the size of the X capacitor is 450V/10 nF.
Preferably, the interference suppression circuit includes a plurality of capacitors, and the plurality of capacitors are connected in parallel.
Compared with the prior art, the utility model, its beneficial effect lies in: the utility model discloses a 0-10V keeps apart drive circuit that adjusts luminance adopts the transformer to keep apart, through adjust luminance between module and output circuit or 0-10V adjust luminance between module and the power control circuit increase an anti-interference suppression circuit between module to can eliminate because of the secondary limit of transformer increases the signal interference that the winding brought and adjust luminance the problem that the lamp glimmered in-process appears.
Drawings
Fig. 1 is a circuit block diagram of embodiment 1 and embodiment 2 of the present invention.
Fig. 2 is a circuit block diagram of embodiment 3 of the present invention.
Fig. 3 is a circuit diagram of embodiment 1 of the present invention.
Fig. 4 is a circuit diagram of embodiment 3 of the present invention.
In the figure: 1. a differential mode common film filter circuit; 2. a rectifying circuit; 3. a pi-type filter circuit; 4. an RCD absorption circuit; 5. an output circuit; 6. a power supply control circuit; 7. an LDO power supply circuit; 8. a transformer; 9. a 0-10V dimming module; 10. an anti-interference suppression circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further specifically described below by way of embodiments and with reference to the accompanying drawings.
Example 1
The 0-10V isolation dimming driving circuit of the embodiment comprises a differential mode common film filter circuit, a rectifying circuit, a pi-type filter circuit, a power control circuit, a 0-10V dimming module, an LDO power supply circuit, an RCD absorption circuit, a transformer and an output circuit. The input end of the differential mode common membrane filter circuit is connected with a mains supply, the output end of the differential mode common membrane filter circuit is connected with the input end of the rectifier circuit, the output end of the rectifier circuit is connected with the input end of the pi-type filter circuit, the output end of the pi-type filter circuit is connected with one input end of the power supply control circuit, the other input end of the power supply control circuit is connected with the output end of the LDO power supply circuit, the output end of the power supply control circuit is connected with the input end of the 0-10V dimming module, the input end of the LDO power supply circuit is connected with one primary winding of the transformer, the other primary winding of the transformer is connected with the RCD absorption circuit, one secondary winding of the transformer is connected with the input end of the output circuit, the other secondary winding of the transformer is, an anti-interference suppression circuit is also connected between the 0-10V dimming module and the output circuit.
The anti-interference suppression circuit comprises a Y capacitor, and the size of the capacitor is 400V/2.2 nF.
Example 2
The difference between the 0-10V isolation dimming driving circuit of this embodiment and embodiment 1 is that the anti-interference suppression circuit in this embodiment includes a plurality of capacitors, and the plurality of capacitors are connected in parallel to each other.
Example 3
The 0-10V isolation dimming driving circuit of the present embodiment is different from embodiment 1 in that the anti-interference suppression circuit in the present embodiment is connected between the 0-10V dimming module and the power control circuit, and the anti-interference suppression circuit includes an X capacitor with a capacitance size of 450V/2.2 nF.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. All changes and modifications that may be made by the technical spirit of the present invention to the above embodiments by simple modification are considered to fall within the scope of the present invention.
Claims (8)
1. A0-10V isolation dimming drive circuit comprises a differential mode common-film filter circuit, a rectifier circuit, a pi-type filter circuit, a power supply control circuit, a 0-10V dimming module, an LDO power supply circuit, an RCD absorption circuit, a transformer and an output circuit; the input end of the differential mode common membrane filter circuit is connected with a mains supply, and the output end of the differential mode common membrane filter circuit is connected with the input end of the rectifying circuit; the output end of the rectification circuit is connected with the input end of the pi-type filter circuit, the output end of the pi-type filter circuit is connected with one input end of the power supply control circuit, the other input end of the power supply control circuit is connected with the output end of the LDO power supply circuit, the output end of the power supply control circuit is connected with the input end of the 0-10V dimming module, the input end of the LDO power supply circuit is connected with one primary winding of the transformer, the other primary winding of the transformer is connected with the RCD absorption circuit, one secondary winding of the transformer is connected with the input end of the output circuit, the other secondary winding of the transformer is connected with the 0-10V dimming module, the output end of the output circuit is connected with the LED load, and the LED dimming circuit is characterized in that: and an anti-interference suppression circuit is also connected between the 0-10V dimming module and the output circuit or between the 0-10V dimming module and the power control circuit.
2. A 0-10v isolated dimming driving circuit according to claim 1, wherein: the interference rejection circuit includes at least one capacitor.
3. A 0-10v isolated dimming driving circuit according to claim 2, wherein: the interference rejection circuit includes a capacitor.
4. A 0-10v isolated dimming driving circuit according to claim 3, wherein: the capacitor is a Y capacitor.
5. A 0-10v isolated dimming driving circuit according to claim 4, wherein: the size of the Y capacitor is 400V/2.2 nF.
6. A 0-10v isolated dimming driving circuit according to claim 3, wherein: the capacitor is an X capacitor.
7. A 0-10v isolated dimming driving circuit according to claim 6, wherein: the size of the X capacitor is 450V/10 nF.
8. A 0-10v isolated dimming driving circuit according to claim 2, wherein: the anti-interference suppression circuit comprises a plurality of capacitors, and the capacitors are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921838213.6U CN210928068U (en) | 2019-10-30 | 2019-10-30 | 0-10v isolation dimming drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921838213.6U CN210928068U (en) | 2019-10-30 | 2019-10-30 | 0-10v isolation dimming drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210928068U true CN210928068U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921838213.6U Active CN210928068U (en) | 2019-10-30 | 2019-10-30 | 0-10v isolation dimming drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210928068U (en) |
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2019
- 2019-10-30 CN CN201921838213.6U patent/CN210928068U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210430 Address after: 312000 No.568, west section of Renmin Avenue, Cao'e street, Shangyu District, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG YANKON GROUP Co.,Ltd. Patentee after: ZHEJIANG YANKON MEGA LIGHTING Co.,Ltd. Address before: 312300 Building 3, No. 16, No. 208 Tongjiang Middle Road, Cao'e Street, Shangyu District, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG YANGGUANG HEMEI LIGHTING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220609 Address after: 312300 building F, No. 208-209, Tongjiang Middle Road, Cao'e street, Shangyu District, Shaoxing City, Zhejiang Province (residence declaration) Patentee after: ZHEJIANG YANKON URBAN LIGHTING ENGINEERING CO.,LTD. Address before: 312000 No.568, west section of Renmin Avenue, Cao'e street, Shangyu District, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG YANKON GROUP. Co.,Ltd. Patentee before: Zhejiang Sunshine Meijia Lighting Co., Ltd |