CN207531128U - Constant current output LED drive power is isolated in a kind of monopole - Google Patents
Constant current output LED drive power is isolated in a kind of monopole Download PDFInfo
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- CN207531128U CN207531128U CN201721565195.XU CN201721565195U CN207531128U CN 207531128 U CN207531128 U CN 207531128U CN 201721565195 U CN201721565195 U CN 201721565195U CN 207531128 U CN207531128 U CN 207531128U
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- isolation
- shell
- constant current
- master controller
- current output
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Abstract
The utility model discloses a kind of monopoles to be isolated constant current output LED drive power,Including shell is isolated,Input and output isolator and master controller,The isolation shell is internally provided with multilayer PCB circuit board,The upper surface of the PCB circuit board is integrated with input and output isolator,The control terminal of the input and output isolator is connected with master controller,The control terminal of the master controller is also associated with DC DC converters,The DC DC converters are fixedly mounted on the inner wall of isolation shell,The control terminal of the DC DC converters is connected with the input and output isolator in PCB circuit board,The inner surface of the isolation shell is also installed with multi-layer heat dissipation plate,Using discontinuous mode,It is automatic to realize power factor emendation function,Only control need to be carried out to DC/DC converter units by master controller and realize constant current output,Cause main circuit,Control circuit,Driving circuit etc. is simplified,Reliability is improved while reducing cost.
Description
Technical field
The utility model is related to LED drive power technical field, specially a kind of monopole isolation constant current output LED driving electricity
Source.
Background technology
LED (lightemittingdiode) illuminations have efficient, energy saving, the pollution-free, longevity compared to traditional lighting mode
The outstanding advantages such as life length, in recent years as the research hotspot of lighting area, gradually in street street lighting, tunnel illumination, vapour
Licence it is bright wait lighting areas be widely applied, but there is also it is certain the problem of：
(1) at present, for single-stage LED drive power, DCM patterns are worked in since PFC units generally use
Boost, Buck-Boost or SEPIC converter etc., when switch operative duty cycles are approximate constant in 1/2 power frequency period, from
It is dynamic to realize power factor emendation function.Boost will obtain High Power Factor, it is necessary to using high output voltage as cost,
Cause switching device voltage stress high, and SEPIC converters include two inductance, component number used is more, and structure is slightly aobvious
Complexity, power density is low, is unsuitable for the extensive development of current LED industry；
(2) existing LED drive power only needs to set a switching tube by flyback converter, although simple in structure can
It leans on, it is easy to accomplish, it is also widely applied in middle low power application scenario, however the switching tube in flyback converter is to open firmly
Working method is closed, the due to voltage spikes at switch OFF moment is big, causes switching loss larger, and driving power efficiency receives certain
It restricts.
Invention content
In order to overcome the shortcomings of prior art, the utility model provides a kind of monopole isolation constant current output LED drivings
Power supply, internal power factor corrector and DC/DC converters are combined by common switch pipe, wherein power factor school
Positive device works in discontinuous mode (DCM), can realize power factor emendation function automatically, only need to pass through master controller
Control is carried out to DC/DC converter units and realizes constant current output so that main circuit, control circuit, driving circuit etc. are simplified,
Reliability is improved while reducing cost, can effectively solve the problem that the problem of background technology proposes.
Technical solution is used by the utility model solves its technical problem：A kind of monopole isolation constant current output LED drives
Dynamic power supply, including isolation shell, input and output isolator and master controller, the isolation shell is internally provided with multi-layer PCB
Circuit board, the upper surface of the PCB circuit board are integrated with input and output isolator, the control terminal of the input and output isolator with
Master controller is connected, and the master controller is fixedly mounted in the inner left wall of isolation shell, the control of the master controller
End is also associated with DC-DC converter, and the DC-DC converter is fixedly mounted on the inner wall of isolation shell, the DC-DC transformation
The control terminal of device is connected with the input and output isolator in PCB circuit board, and the inner surface of the isolation shell is also fixedly mounted
There is multi-layer heat dissipation plate, binding post, the outer surface setting of the binding post are also installed on the right side of the isolation shell
There is line card.
As a kind of preferred technical solution of the utility model, also it is fixedly mounted on the left side of the isolation shell persevering
Stream driving power connects.
As a kind of preferred technical solution of the utility model, the inner wall centre of the isolation shell, which also extends through, to be connected with
Shaft, the outer surface of the shaft are provided with wire interface.
As a kind of preferred technical solution of the utility model, the upper surface of the isolation shell is also installed with switch
Multiple tube.
As a kind of preferred technical solution of the utility model, the control terminal of the switch multiple tube becomes respectively with DC-DC
Parallel operation is connected with power factor corrector.
As a kind of preferred technical solution of the utility model, the power factor corrector is fixedly mounted on PCB circuits
On the upper surface of plate.
As a kind of preferred technical solution of the utility model, finger is also installed on the left side of the isolation shell
Show lamp, the control terminal of the indicator light is connected with master controller.
Compared with prior art, the beneficial effects of the utility model are：
(1) the utility model sets PCB circuit board in isolation enclosure, passes through the circuit integrated in PCB circuit board and connects
Master controller, input and output isolator and DC-DC converter are connect, and power factor corrector and DC/DC converters are by sharing
Switching tube is combined, and wherein power factor corrector works in discontinuous mode (DCM), can realize power automatically
Factor correcting function only need to carry out DC/DC converter units by master controller control and realize constant current output so that main circuit,
Control circuit, driving circuit etc. are simplified, and reliability is improved while reducing cost；
(2) the utility model using discontinuous current mode operating mode One Buck-Boost converter body realize automatically power because
Number calibration function so that power factor improves, while is internally provided with multi-layer heat dissipation plate in driving power, is inside driving power
Heat dissipation, it is therefore prevented that influence of the temperature to zero device of enclosure interior extends the service life of driving power；
(3) the isolation enclosure of the utility model is using monopole isolation constant current output control LED drive power, with reference to master
The size of the unidirectionally controlled power factor of controller reduces the complexity of circuit design, while in the outer surface of isolation housing also
Binding post is provided with, wiring is laid out external circuit by line card so that the wiring outside driving power is simpler
It is single.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the modular structure schematic diagram of the utility model.
In figure：Shell is isolated in 1-；2-PCB circuit boards；3- master controllers；4- binding posts；5- line cards；6- input and output
Isolator；7-DC-DC converters；8- switchs multiple tube；9- power factor correctors；10- constant-current driving power supply interfaces；11- refers to
Show lamp；12- shafts；13- wire interfaces；14- heat sinks.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, 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 embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
The explanation of following embodiment is refer to the attached drawing, can be to the particular implementation implemented to example the utility model
Example.The direction and position term that the utility model is previously mentioned, for example, " on ", " in ", " under ", "front", "rear", "left", "right", "
It is interior ", " outer ", " side " etc., be only the direction and position with reference to annexed drawings.Therefore, the direction and position term used is to use
To illustrate and understand the utility model rather than to limit the utility model.
Embodiment：
As depicted in figs. 1 and 2, the utility model provides a kind of monopole isolation constant current output LED drive power, including every
From shell 1, input and output isolator 6 and master controller 3, the isolation shell 1 is internally provided with multilayer PCB circuit board 2, institute
The upper surface for stating PCB circuit board 2 is integrated with input and output isolator 6, the control terminal of the input and output isolator 6 and main control
Device 3 is connected, and the master controller 3 realizes constant current using the size of the embedded controller controls power factor of STM32 series
Driving, the master controller 3 are fixedly mounted in the inner left wall of isolation shell 1, and the control terminal of the master controller 3 is also connected with
There is DC-DC converter 7, the DC-DC converter 7 is fixedly mounted on the inner wall of isolation shell 1, the DC-DC converter 7
Control terminal is connected with the input and output isolator 6 in PCB circuit board 2, and the inner surface of the isolation shell 1 is also installed with
Multi-layer heat dissipation plate 14, it is described isolation shell 1 right side on be also installed with binding post 4, the outer surface of the binding post 4 is set
It is equipped with line card 5；
Preferably：Constant-current driving power supply interface 10 is also installed on the left side of the isolation shell 1；The isolation
The inner wall centre of shell 1, which also extends through, is connected with shaft 12, and the outer surface of the shaft 12 is provided with wire interface 13, described turn
Axis 12 is designed using hollow core structures, and the external circuit being internally integrated by wire interface 13 to PCB circuit board 2 is arranged, and is dropped
The low complexity of driving power internal wiring；The upper surface of the isolation shell 1 is also installed with switch multiple tube 8；Institute
The control terminal for stating switch multiple tube 8 is connected respectively with DC-DC converter 7 and power factor corrector 9；The power factor school
Positive device 9 is fixedly mounted on the upper surface of PCB circuit board 2；Indicator light is also installed on the right side of the isolation shell 1
11, the control terminal of the indicator light 11 is connected with master controller 3.
In conclusion the utility model is mainly characterized by：
(1) the utility model sets PCB circuit board in isolation enclosure, passes through the circuit integrated in PCB circuit board and connects
Master controller, input and output isolator and DC-DC converter are connect, and power factor corrector and DC/DC converters are by sharing
Switching tube is combined, and wherein power factor corrector works in discontinuous mode (DCM), can realize power automatically
Factor correcting function only need to carry out DC/DC converter units by master controller control and realize constant current output so that main circuit,
Control circuit, driving circuit etc. are simplified, and reliability is improved while reducing cost；
(2) the utility model using discontinuous current mode operating mode One Buck-Boost converter body realize automatically power because
Number calibration function so that power factor improves, while is internally provided with multi-layer heat dissipation plate in driving power, is inside driving power
Heat dissipation, it is therefore prevented that influence of the temperature to zero device of enclosure interior extends the service life of driving power；
(3) the isolation enclosure of the utility model is using monopole isolation constant current output control LED drive power, with reference to master
The size of the unidirectionally controlled power factor of controller reduces the complexity of circuit design, while in the outer surface of isolation housing also
Binding post is provided with, wiring is laid out external circuit by line card so that the wiring outside driving power is simpler
It is single.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that by containing in the equivalent requirements of the claims is fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Claims (7)
1. constant current output LED drive power is isolated in a kind of monopole, it is characterised in that：Including isolation shell (1), input and output isolation
Device (6) and master controller (3), the isolation shell (1) are internally provided with multilayer PCB circuit board (2), the PCB circuit board
(2) upper surface is integrated with input and output isolator (6), control terminal and the master controller (3) of the input and output isolator (6)
It is connected, the master controller (3) is fixedly mounted in the inner left wall of isolation shell (1), the control of the master controller (3)
End is also associated with DC-DC converter (7), and the DC-DC converter (7) is fixedly mounted on the inner wall of isolation shell (1), described
The control terminal of DC-DC converter (7) is connected with the input and output isolator (6) in PCB circuit board (2), the isolation shell
(1) inner surface is also installed with multi-layer heat dissipation plate (14), is also installed with and connects on the right side of the isolation shell (1)
Terminal (4), the outer surface of the binding post (4) are provided with line card (5).
2. a kind of monopole isolation constant current output LED drive power according to claim 1, it is characterised in that：The isolation
Constant-current driving power supply interface (10) is also installed on the left side of shell (1).
3. a kind of monopole isolation constant current output LED drive power according to claim 1, it is characterised in that：The isolation
The inner wall centre of shell (1), which also extends through, is connected with shaft (12), and the outer surface of the shaft (12) is provided with wire interface
(13)。
4. a kind of monopole isolation constant current output LED drive power according to claim 1, it is characterised in that：The isolation
The upper surface of shell (1) is also installed with switch multiple tube (8).
5. a kind of monopole isolation constant current output LED drive power according to claim 4, it is characterised in that：The switch
The control terminal of multiple tube (8) is connected respectively with DC-DC converter (7) and power factor corrector (9).
6. a kind of monopole isolation constant current output LED drive power according to claim 5, it is characterised in that：The power
Factor corrector (9) is fixedly mounted on the upper surface of PCB circuit board (2).
7. a kind of monopole isolation constant current output LED drive power according to claim 1, it is characterised in that：The isolation
Indicator light (11), control terminal and master controller (3) phase of the indicator light (11) are also installed on the left side of shell (1)
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721565195.XU CN207531128U (en) | 2017-11-21 | 2017-11-21 | Constant current output LED drive power is isolated in a kind of monopole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721565195.XU CN207531128U (en) | 2017-11-21 | 2017-11-21 | Constant current output LED drive power is isolated in a kind of monopole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207531128U true CN207531128U (en) | 2018-06-22 |
Family
ID=62579908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721565195.XU Active CN207531128U (en) | 2017-11-21 | 2017-11-21 | Constant current output LED drive power is isolated in a kind of monopole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207531128U (en) |
-
2017
- 2017-11-21 CN CN201721565195.XU patent/CN207531128U/en active Active
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