CN110446307A - A kind of multiple-channel output modularization UV LED power - Google Patents
A kind of multiple-channel output modularization UV LED power Download PDFInfo
- Publication number
- CN110446307A CN110446307A CN201910788109.9A CN201910788109A CN110446307A CN 110446307 A CN110446307 A CN 110446307A CN 201910788109 A CN201910788109 A CN 201910788109A CN 110446307 A CN110446307 A CN 110446307A
- Authority
- CN
- China
- Prior art keywords
- conversion module
- current
- output
- modularization
- led power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of multiple-channel output modularization UV LED powers, for powering for UV LED lamp panel；Including input three-phase alternating current, AC/DC conversion module, several DC/DC conversion modules and control board, brightness adjustment control plate built in each DC/DC conversion module；Input three-phase alternating current is electrically connected to the input of AC/DC conversion module, and AC/DC conversion module exports direct current, if direct current point main line is respectively connected to the input of each DC/DC conversion module, each DC/DC conversion module output driving current to corresponding UV LED lamp panel；The brightness adjustment control plate of each DC/DC conversion module, for acquiring the electric current and voltage signal of current DC/DC conversion module output, and the current reference value that reception control board issues, and output pwm signal adjusts the driving current size of current DC/DC conversion module output.The present invention solves the hidden danger of three-phase imbalance in power supply process, can be realized multiple power supplies output and every road arbitrarily dims, easy and safe to operate.
Description
Technical field
The invention belongs to UV LED power fields, and in particular to a kind of multiple-channel output modularization UV LED power.
Background technique
The application that UV is solidificated in tin graphed sheet industry has become more mature technology, the technology fast, nothing with drying rate
The advantages such as pollution and energy conservation.With the progress of LED power technology and the reduction of lamp bead cost, more environmentally-friendly LED light is utilized
It substitutes original mercury lamp and generates UV ultraviolet light, be increasingly becoming the mainstream that UV solidifies industry.
Since industry has just emerged, it is exclusively used in the cured LED drive power of UV and is not much；The producer of UV LED power is mostly
From the small-power power for buying tunable optical on the market, such as bright latitude power supply, large-scale integrated is then carried out, realizes high-power make
With as shown in Figure 1.The separate unit power of these small-power powers has PWM light modulation or electricity usually in 120W or 280W or so
Press dimming function.Therefore, if it is desirable to construct the solidification power-supply system of 15 tunnels output, then 15 small power electrics must be used
Source carries out arrangement assembling, then redesigns dedicated brightness adjustment control plate.
It can be seen that existing UV LED power has the following problems: (1) needing many monomer power supplys in high-power applications
Parallel operation is carried out, wiring is relatively complicated；(2) it needs to power using three-phase alternating current in high-power applications, if the associating power supply
Certain road power supply of system or a few road power supplys break down, and be easy to cause three-phase imbalance, there are security risks；(3) associating power supply
System needs to relate additionally to brightness adjustment control plate, increases cost.
Summary of the invention
It is an object of the invention in view of the above problems and insufficient, a kind of multiple-channel output modularization UV LED is proposed
Power supply solves the hidden danger of three-phase imbalance in power supply process, can be realized multiple power supplies output and every road arbitrarily dims, operate
It is convenient and safe.
To achieve the goals above, the technical solution adopted by the present invention is that: a kind of multiple-channel output modularization UV LED power,
For powering for UV LED lamp panel；Including input three-phase alternating current, AC/DC conversion module, several DC/DC conversion modules and in
Control plate, brightness adjustment control plate built in each DC/DC conversion module；
Input three-phase alternating current is electrically connected to the input of AC/DC conversion module, and AC/DC conversion module exports direct current, direct current
If electricity point main line is respectively connected to the input of each DC/DC conversion module, each DC/DC conversion module output driving current to UV
LED lamp panel；
The brightness adjustment control plate of each DC/DC conversion module, for acquiring the electric current and electricity of current DC/DC conversion module output
Signal is pressed, and receives the current reference value that control board issues, and output pwm signal adjusts current DC/DC conversion module output
Driving current size.
Above-mentioned technical proposal is further improved, DC/DC conversion module is turned using boosting DC/DC converter, decompression DC/DC
Parallel operation or buck DC/DC converter.By using different DC/DC conversion modules, Lai Shixian multichannel High voltage output/low pressure is defeated
Out/high-low pressure output, to meet the connection request of different lamp plates.
Further, boosting DC/DC converter is using Boost circuit topology.
Further, decompression DC/DC converter uses Buck circuit topology.
Further, buck DC/DC converter uses Boost-Buck circuit topology.
Further, control board includes middle Keysheet module, the display module harmony controlling MCU and connecting respectively with middle control MCU
Optical alarm circuit.
Further, sound light alarming circuit includes two light emitting diodes and a buzzer.
Further, each brightness adjustment control plate is connect using 485 telecommunication circuits with control board.
Beneficial effects of the present invention: the present invention is powered using three-phase alternating current, by subsequent voltage conversion circuit, is realized
Multichannel stablizes independent voltage output, avoids the problem of leading to three-phase power imbalance because of certain road power failure；Every road
Output is provided with a brightness adjustment control plate, is communicated by control board with every road brightness adjustment control plate, realize that every road exports with
Meaning is adjusted, to adjust the brightness of UV LED lamp panel.Meanwhile control board has good man-machine interface, it can be right by Keysheet module
Every road output electric current is set, and every road output situation can be shown by display module.
Detailed description of the invention
Fig. 1 is prior art UV LED power structure chart of the present invention；
Fig. 2 is the circuit diagram of multiple-channel output modularization UV LED power of the present invention；
Fig. 3 is the circuit diagram of 1 multichannel high voltage output module UV LED power of the embodiment of the present invention；
Control principle drawing of the control board that Fig. 4 is Fig. 3 to boosting DC/DC converter；
Fig. 5 is that PWM dims schematic diagram in Fig. 4；
Fig. 6 is the circuit diagram of control board in Fig. 3；
Fig. 7 is the structure chart of Keysheet module in Fig. 6；
Fig. 8 is the circuit diagram of sound light alarming circuit in Fig. 6；
Fig. 9 is the circuit diagram of 2 multichannel low pressure output modular UV LED power of the embodiment of the present invention；
Control principle drawing of the control board that Figure 10 is Fig. 9 to decompression DC/DC converter；
Figure 11 is the circuit diagram of 3 multichannel high-low pressure output modular UV LED power of the embodiment of the present invention；
Control principle drawing of the control board to buck DC/DC converter that Figure 12 is Figure 11；
Figure 13 is the circuit diagram of the buck DC/DC converter of Figure 11.
Specific embodiment
To keep the contents of the present invention clearer, with reference to the accompanying drawing, a specific embodiment of the invention is made further
Detailed description.It should be noted that for purposes of clarity, it is omitted that unrelated to the invention, this field is common in attached drawing and explanation
The expression and description of component known to technical staff.
Embodiment 1:
A kind of multiple-channel output modularization UV LED power provided by the invention, for powering for UV LED lamp panel；Such as Fig. 2 institute
Show, including input three-phase alternating current, AC/DC conversion module, several DC/DC conversion modules and control board, each DC/DC conversion
Brightness adjustment control plate built in module；
Input three-phase alternating current is electrically connected to the input of AC/DC conversion module, and AC/DC conversion module exports direct current, direct current
If electricity point main line is respectively connected to the input of each DC/DC conversion module, each DC/DC conversion module output driving current to UV
LED lamp panel；
The brightness adjustment control plate of each DC/DC conversion module, for acquiring the electric current and electricity of current DC/DC conversion module output
Signal is pressed, and receives the current reference value that control board issues, and output pwm signal adjusts current DC/DC conversion module output
Driving current size.
The AC/DC conversion module is considered high-power applications, is inputted using three-phase alternating current, is realized low-voltage output, is
Level power supply constant pressure is powered afterwards, and realizes the High Power Factor of input side.Due to UV LED load side voltage 180V-300V it
Between, AC/DC conversion module exports 100V DC voltage；
As shown in Figures 3 and 4, DC/DC conversion module, can to the stabilization of LED lamp bead to realize using boosting DC/DC converter
By driving, DC/DC conversion module exports the current handling capability for needing to have stable, realizes constant current output.It is defeated in view of reducing
Current ripples out, boosting DC/DC converter have PWM dimming control function, the i.e. converter using Boost circuit topology
It can be by adjusting control of the duty ratio realization of pwm signal to output electric current, PWM control principle drawing is as shown in Figure 5.In addition,
In order to enable rear class power supply architecture is more compact, can be closed here using 2,3 or multiple DC/DC conversion modules in an electricity
Mode on the plate of road, i.e. multichannel voltage increase and current constant output translator use the same power supply terminal, and the output of converter is mutually indepedent.
Brightness adjustment control plate is provided on each converter, electric current, the voltage that can be exported to each converter carry out sampling and AD conversion,
To carry out closed-loop control according to current reference and output current feedback values, multi-channel PWM dimming control signal is ultimately generated, is realized
Output is stablized in the constant current of multi-channel converter.
As shown in Fig. 6,7 and 8, control board includes middle control MCU and the Keysheet module connecting respectively with middle control MCU, display mould
Block and sound light alarming circuit.Sound light alarming circuit includes two light emitting diodes and a buzzer.Control board passes through 485 communications
Circuit and each brightness adjustment control board communications, on the one hand issue current reference value and switching logic controls signal to brightness adjustment control plate,
On the other hand output electric current and voltage data that brightness adjustment control plate is sent are received.
Embodiment 2
As shown in Figures 9 and 10, unlike the first embodiment, the DC/DC conversion module of the present embodiment is using decompression DC/DC
Converter, decompression DC/DC converter use Buck circuit topology, realize output voltage between 40~80V.
Embodiment 3
As shown in Figure 11,12 and 13, unlike the first embodiment, the DC/DC conversion module of the present embodiment uses buck
DC/DC converter, buck DC/DC converter use Boost-Buck circuit topology, realize output voltage 40~300V it
Between.
The working principle of the invention: before system operation, three-phase alternating current is first electrically connected to the input of AC/DC conversion module
End, and the output of multiple DC/DC conversion modules is connected with corresponding UV LED lamp panel；
It is 0 that duty ratio is defaulted after three-phase alternating current power supply, on brightness adjustment control plate, and rear class electric power outputting current is 0, and lamp bead is not
It is bright；At this point, every road current reference value is arranged in the Keysheet module by control board, after confirmation, control board passes through 485 telecommunication circuits,
Current reference value is handed down to the MCU of each brightness adjustment control plate, and then automatic phasing answers rear level power supply to carry out closed-loop control, realizes
It is exported to constant current.
In operational process, the MCU timing of brightness adjustment control plate passes through the voltage of load, current data in 485 telecommunication circuits
Control board is reached, and then refreshes voltage, electric current and the power data for showing every road output on a display screen；When output electric current is more than
When preset upper current limit, control board, which issues audible and visible alarm by sound light alarming circuit, if you need to shut down, can in emergency circumstances lead to
The button operation on control board is crossed, for example, clicking " stop ", this key can trigger the external interrupt of control board MCU, at this point,
Middle control MCU can issue emergency shutdown instruction to the MCU of brightness adjustment control plate by 485 telecommunication circuits, so that when output electric current the first
Between be zeroed.
Embodiments of the present invention are only expressed above, and the description thereof is more specific and detailed, but can not therefore understand
For the limitation to patent of invention range.It should be pointed out that for those of ordinary skill in the art, not departing from this hair
Under the premise of bright design, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.Therefore, this hair
The scope of protection shall be subject to the appended claims for bright patent.
Claims (8)
1. a kind of multiple-channel output modularization UV LED power, for powering for UV LED lamp panel；It is characterized by comprising inputs three
Phase alternating current, AC/DC conversion module, several DC/DC conversion modules and control board, the built-in light modulation of each DC/DC conversion module
Control panel；
Input three-phase alternating current is electrically connected to the input of AC/DC conversion module, and AC/DC conversion module exports direct current, direct current point
If main line is respectively connected to the input of each DC/DC conversion module, each DC/DC conversion module output driving current to UV LED
Lamp plate；
The brightness adjustment control plate of each DC/DC conversion module, for acquiring the electric current and voltage letter of current DC/DC conversion module output
Number, and the current reference value that control board issues is received, and output pwm signal adjusts the drive of current DC/DC conversion module output
Streaming current size.
2. multiple-channel output modularization UV LED power according to claim 1, it is characterised in that: DC/DC conversion module is adopted
With boosting DC/DC converter, decompression DC/DC converter or buck DC/DC converter.
3. multiple-channel output modularization UV LED power according to claim 2, it is characterised in that: boosting DC/DC converter
Using Boost circuit topology.
4. multiple-channel output modularization UV LED power according to claim 2, it is characterised in that: decompression DC/DC converter
Using Buck circuit topology.
5. multiple-channel output modularization UV LED power according to claim 2, it is characterised in that: buck DC/DC conversion
Device uses Boost-Buck circuit topology.
6. multiple-channel output modularization UV LED power according to claim 1, it is characterised in that: control board includes middle control
MCU and Keysheet module, display module and the sound light alarming circuit being connect respectively with middle control MCU.
7. multiple-channel output modularization UV LED power according to claim 6, it is characterised in that: sound light alarming circuit includes
Two light emitting diodes and a buzzer.
8. multiple-channel output modularization UV LED power according to claim 6, it is characterised in that: each brightness adjustment control plate is adopted
It is connect with 485 telecommunication circuits with control board.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920738865 | 2019-05-22 | ||
| CN2019207388656 | 2019-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110446307A true CN110446307A (en) | 2019-11-12 |
Family
ID=68437591
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921387774.9U Active CN210725428U (en) | 2019-05-22 | 2019-08-26 | Multiplexed output modularization UV LED power |
| CN201910788109.9A Pending CN110446307A (en) | 2019-05-22 | 2019-08-26 | A kind of multiple-channel output modularization UV LED power |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921387774.9U Active CN210725428U (en) | 2019-05-22 | 2019-08-26 | Multiplexed output modularization UV LED power |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN210725428U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952925A (en) * | 2019-11-26 | 2021-06-11 | 康舒科技股份有限公司 | Power supply device with multiple groups of wide-range voltage outputs and control method thereof |
| WO2022036857A1 (en) * | 2020-08-18 | 2022-02-24 | 浙江宇光照明科技有限公司 | Intelligent-controlled lighting and sterilization dual-purpose lamp |
| CN114340087A (en) * | 2021-12-31 | 2022-04-12 | 无锡拓朴微电子有限公司 | Three-phase intelligent ultra-high-power constant current driving circuit and method |
-
2019
- 2019-08-26 CN CN201921387774.9U patent/CN210725428U/en active Active
- 2019-08-26 CN CN201910788109.9A patent/CN110446307A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952925A (en) * | 2019-11-26 | 2021-06-11 | 康舒科技股份有限公司 | Power supply device with multiple groups of wide-range voltage outputs and control method thereof |
| WO2022036857A1 (en) * | 2020-08-18 | 2022-02-24 | 浙江宇光照明科技有限公司 | Intelligent-controlled lighting and sterilization dual-purpose lamp |
| CN114340087A (en) * | 2021-12-31 | 2022-04-12 | 无锡拓朴微电子有限公司 | Three-phase intelligent ultra-high-power constant current driving circuit and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210725428U (en) | 2020-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102237794B (en) | Control circuit and control method of switch power supply, light-emitting device and electronic device | |
| CN110446307A (en) | A kind of multiple-channel output modularization UV LED power | |
| CN102762011B (en) | LED (Light Emitting Diode) constant-current dimming drive circuit device | |
| TW201234919A (en) | Single power stage for LED driver and other power supplies | |
| CN103037589B (en) | Light-emitting diode (LED) constant current drive circuit and liquid crystal display television (LCD TV) | |
| CN105187749B (en) | A kind of television backlight Drive And Its Driving Method | |
| CN101855800A (en) | DC low voltage distribution box for indoor multi leds lamp | |
| CN104333933A (en) | Light emitting diode driving device and light emitting diode illumination system applying same | |
| CN205751480U (en) | A kind of display device and power driving circuit thereof | |
| WO2013170490A1 (en) | Led backlight driving circuit, backlight module and liquid crystal display device | |
| CN103079320B (en) | LED (Light Emitting Diode) constant current controller and LED constant current drive circuit | |
| CN110337160A (en) | Lighting system | |
| CN104601033A (en) | High-voltage pulse type magnetron power source | |
| CN201928475U (en) | Singlechip integrated circuit with boosting and stepping functions for driving high-power LED lamp | |
| CN105307350A (en) | Long-service lifetime intelligent constant-current light-modulating driving power supply of LED street lamps | |
| CN101777846B (en) | System and method for controlling switch power supply | |
| CN102892245A (en) | Discharge lamp system and control method thereof | |
| CN201403226Y (en) | LED backlight driving device | |
| CN102646396B (en) | LED backlight drive circuit, liquid crystal display device and drive circuit | |
| CN104349544A (en) | LED driving apparatus and illuminating device | |
| CN203761667U (en) | Electronic electrodeless-dimming intelligent UV (ultraviolet) variable-frequency power source | |
| CN207053836U (en) | A kind of LED high-voltage driving circuit with dimming function | |
| CN206992950U (en) | A kind of voltage control system for ultraviolet light detection | |
| CN203554726U (en) | Multiplexed voltage output LED (Light Emitting Diode) driving power supply of feedback regulation frequency system | |
| CN209676560U (en) | Short arc direct current xenon lamp intelligent power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191112 |
|
| WD01 | Invention patent application deemed withdrawn after publication |