CN208445799U - Simulation light modulation constant-current LED dimming driver - Google Patents
Simulation light modulation constant-current LED dimming driver Download PDFInfo
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- CN208445799U CN208445799U CN201821101227.5U CN201821101227U CN208445799U CN 208445799 U CN208445799 U CN 208445799U CN 201821101227 U CN201821101227 U CN 201821101227U CN 208445799 U CN208445799 U CN 208445799U
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Abstract
The utility model discloses a kind of simulations to dim constant-current LED dimming driver, and the simulation light modulation constant-current LED dimming driver includes: No. two conversion transformers, AC-DC conversion circuit, high-power driving pipe, constant-current drive circuit, rectification reduction voltage circuit, integrating circuit, host scm processing circuit and constant current output circuit.Technical solution provided by the present application has the size of current of control constant current output, thus the advantages of lighting LED lamp with corresponding bright.
Description
Technical field
The utility model relates to electronic fields more particularly to a kind of simulation to dim constant-current LED dimming driver.
Background technique
The working method of traditional simulation brightness adjustment control driver is the electricity using detectable analog signal input on the market
Source chip scheme receives 0-10V signal, follows the size of signal control output electric current.Due to there is 0-10V, 1- on the market
There is different and error in 10V, PWM, the light modulator of the analog signals such as potentiometer, signal characteristic, cause to occur to dim or
It is flashed when light modulation, it is especially obvious in low output.It is difficult to solve after there is this problem.
Summary of the invention
The purpose of this utility model is to provide a kind of simulations to dim constant-current LED dimming driver, mainly solves existing
The problem of technology cannot be dimmed or be flashed when dimming.
In order to solve the above-mentioned technical problem, the utility model provides a kind of simulation light modulation constant-current LED dimming driver, institute
Stating simulation light modulation constant-current LED dimming driver includes: No. two conversion transformers, AC-DC conversion circuit, high-power driving pipe, perseverance
Flow driving circuit, rectification reduction voltage circuit, integrating circuit, host scm processing circuit and constant current output circuit；
Wherein, the input terminal of No. two conversion transformers is connect with external power supply, two output ends of No. two conversion transformers
It is separately connected one end of AC-DC conversion circuit and one end of rectification reduction voltage circuit；
One end of the other end connection high-power driving pipe of AC-DC conversion circuit, the power take-off of big function-driven pipe
Connect an input terminal of constant-current drive circuit；
One end of the other end connection integrating circuit of reduction voltage circuit is rectified, the other end of integrating circuit connects at host scm
One end of device is managed, the pulse width signal output end of host scm processor connects another input terminal of constant-current drive circuit,
Constant-current drive circuit output end connects one end of constant current output circuit, and the other end output DC of constant current output circuit is permanent
Stream.
Technical solution 220V alternating current provided by the utility model inputs this driver, the transformer of 2 tunnels of access output, and one
For road voltage output 48V to constant-current drive circuit for driving lamp load, another output 12V, rectified decompression stabilizes to 5V
It powers to single-chip microcontroller.The simulation dim signal of outside access, access rectification reduction voltage circuit, then integrating circuit is intervened, become 0-5V
Stable voltage signal accesses monolithic under-chassis position, by single-chip microcontroller analog to digital conversion circuit, generates pulse-width signal all the way, leads to
The amplification for crossing external circuit progress signal exports the size of current that constant current output is controlled to constant-current drive circuit, to make LED light
Tool is lighted with corresponding bright.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of simulation light modulation constant-current LED dimming driver provided by the present application.
Fig. 2 is simulation light modulation constant-current LED dimming driver circuit diagram provided by the present application.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are under that premise of not paying creative labor
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the utility model embodiment, it is to be understood that term " thickness " " left side " " right side " "upper" "lower" etc. refers to
The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the utility model and
Simplify description, rather than implies or indicate that signified device or element must have a particular orientation, with specific orientation construction
And operation, therefore should not be understood as limiting the present invention.
It please refers to shown in attached drawing one, 220V alternating current inputs this driver, accesses the transformer of 2 tunnels output, all the way voltage
48V is exported to constant-current drive circuit for driving lamp load, another output 12V, rectified decompression stabilizes to 5V to monolithic
Machine power supply.The simulation dim signal of outside access, access rectification reduction voltage circuit, then integrating circuit is intervened, it is stable to become 0-5V
Voltage signal accesses monolithic under-chassis position, by single-chip microcontroller analog to digital conversion circuit, generates pulse-width signal all the way, passes through outside
The amplification that circuit carries out signal exports the size of current that constant current output is controlled to constant-current drive circuit, to make LED lamp with phase
Brightness is answered to light.
Referring to Fig.2, Fig. 2 is thyristor constant current LED dimming driver physical circuit schematic diagram provided by the present application.
It is the embodiment of the utility model embodiment above, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the utility model embodiment principle, several improvements and modifications can also be made, these improvement
Also it is considered as the protection scope of the utility model with retouching.
Claims (1)
1. a kind of simulation dims constant-current LED dimming driver, which is characterized in that the simulation dims constant-current LED dimming driver
It include: No. two conversion transformers, AC-DC conversion circuit, high-power driving pipe, constant-current drive circuit, rectification reduction voltage circuit, integral
Circuit, host scm processing circuit and constant current output circuit；
Wherein, the input terminal of No. two conversion transformers is connect with external power supply, two output ends difference of No. two conversion transformers
Connect one end of AC-DC conversion circuit and one end of rectification reduction voltage circuit；
One end of the other end connection high-power driving pipe of AC-DC conversion circuit, the power take-off connection of big function-driven pipe
One input terminal of constant-current drive circuit；
One end of the other end connection integrating circuit of reduction voltage circuit is rectified, the other end of integrating circuit connects host scm processor
One end, host scm processor pulse width signal output end connection constant-current drive circuit another input terminal,
Constant-current drive circuit output end connects one end of constant current output circuit, and the other end of constant current output circuit exports DC constant current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821101227.5U CN208445799U (en) | 2018-07-11 | 2018-07-11 | Simulation light modulation constant-current LED dimming driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821101227.5U CN208445799U (en) | 2018-07-11 | 2018-07-11 | Simulation light modulation constant-current LED dimming driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208445799U true CN208445799U (en) | 2019-01-29 |
Family
ID=65087313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821101227.5U Active CN208445799U (en) | 2018-07-11 | 2018-07-11 | Simulation light modulation constant-current LED dimming driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208445799U (en) |
-
2018
- 2018-07-11 CN CN201821101227.5U patent/CN208445799U/en active Active
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