CN207802470U - A kind of LED power - Google Patents
A kind of LED power Download PDFInfo
- Publication number
- CN207802470U CN207802470U CN201820201451.5U CN201820201451U CN207802470U CN 207802470 U CN207802470 U CN 207802470U CN 201820201451 U CN201820201451 U CN 201820201451U CN 207802470 U CN207802470 U CN 207802470U
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- module
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- diode
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- 230000005611 electricity Effects 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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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]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Rectifiers (AREA)
Abstract
The utility model discloses a kind of LED powers, including rectification module, filter module, switch voltage-stabilizing module and passive valley fill circuit, the rectification module output end is connected with filter module input terminal, the filter module output end is connected with switch voltage-stabilizing module input, and the passive valley fill circuit is arranged between rectification module and filter module.The utility model effectively improves the power factor of LED power by the setting of passive valley fill circuit, to reduce influence of the LED power to network system.The utility model is for providing LED light source constant voltage and current.
Description
Technical field
The utility model is related to electronic circuit neck technology domains, more specifically to LED power technical field.
Background technology
With the extensive use of LED lamp bead, the advantage on LED lamp bead electric property and optical property is increasingly apparent,
More and more companies put into the research and development of LED lamp.
Existing LED power defect in Power Factor Correction Circuit Design, leads to the power factor of LED power
It is relatively low, seriously affect the operation of network system.
Utility model content
The technical problems to be solved in the utility model is：A kind of LED power supply architectures of High Power Factor are provided.
The solution that the utility model solves its technical problem is：
A kind of LED power, including rectification module, filter module, switch voltage-stabilizing module and passive valley fill circuit, it is described whole
Flow module output end is connected with filter module input terminal, and the filter module output end is connected with switch voltage-stabilizing module input,
The passive valley fill circuit is arranged between rectification module and filter module；The passive valley fill circuit include capacitance C1~C4,
Diode D1~D3 and resistance R1, the rectification module output end is grounded by concatenated capacitance C3 and capacitance C4, described whole
Flow module output end is connected by capacitance C2 with diode D1 anodes, and the diode D1 cathode successively pass through resistance R1 and capacitance
C1 is grounded, and the diode D2 plus earths, the diode D2 cathode are connected with diode D1 anodes, and the diode D3 is just
Pole is connected between resistance R1 and capacitance C1, and the diode D3 cathode are connected with rectification module output end.
As a further improvement of the above technical scheme, the utility model further include protection circuit, the protection circuit and
Rectification module input terminal is connected；The protection circuit includes insurance resistance RF and varistor RV, the varistor RV two
End is connected with rectification module input terminal respectively, and mono- ends insurance resistance RF are connected on the tie point of varistor RV and rectification module
Place.
As a further improvement of the above technical scheme, the switch voltage-stabilizing module be include model BP2319 constant currents
Control the non-isolated adjusting and voltage-reduction switch circuit of chip.
As a further improvement of the above technical scheme, the utility model further includes over-voltage protection module, the switch
Voltage stabilizing module output end is connected with over-voltage protection module, and the over-voltage protection module includes resistance R2, resistance R3, capacitance
C5, thyristor SCR and model MC3423 voltage checking chips, the resistance R2 and resistance R3 are connected on switch voltage-stabilizing mould
Between block output end and ground, the second pin of the voltage checking chip is connected between resistance R2 and resistance R3, third pin with
4th pin short circuit, third pin are grounded by capacitance C5, and the 8th pin is extremely connected with thyristor scr gate, the thyristor SCR
Anode is connected with switch voltage-stabilizing module output end, cathode ground connection.
The utility model has the beneficial effects that：The utility model effectively improves LED electricity by the setting of passive valley fill circuit
The power factor in source, to reduce influence of the LED power to network system.The utility model is used to provide LED light source constant
Voltage and current.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the passive valley fill circuit embodiment schematic diagram of the utility model；
Fig. 2 is the over-voltage protection module embodiment schematic diagram of the utility model.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection relations being previously mentioned in text, not single finger element directly connects, and referring to can be according to specific implementation feelings
Condition, by adding or reducing connecting element, to form more preferably circuit structure.Each technical characteristic in the invention,
It can be with combination of interactions under the premise of not conflicting conflict.
Referring to Figures 1 and 2, a kind of LED power, including rectification module, filter module, switch voltage-stabilizing module and passive fill out
Paddy electricity road, the rectification module output end are connected with filter module input terminal, the filter module output end and switch voltage-stabilizing mould
Block input terminal is connected, and the passive valley fill circuit is arranged between rectification module and filter module；The passive valley fill circuit packet
It includes capacitance C1~C4, diode D1~D3 and resistance R1, the rectification module output end passes through concatenated capacitance C3 and capacitance
C4 is grounded, and the rectification module output end is connected by capacitance C2 with diode D1 anodes, and the diode D1 cathode are successively logical
It crosses resistance R1 and capacitance C1 to be grounded, the diode D2 plus earths, the diode D2 cathode and diode D1 anode phases
Even, the diode D3 anodes are connected between resistance R1 and capacitance C1, the diode D3 cathode and rectification module output end phase
Even.Specifically, multiplication of voltage effect is generated by the setting of capacitance C3 and capacitance C4 in the utility model so that two in rectification module
Pole pipe can be connected even if input voltage is lower.The utility model is by the setting of passive valley fill circuit, effectively
The power factor for improving LED power, to reduce influence of the LED power to network system.
It is further used as preferred embodiment, further includes protection circuit in specific embodiment of the present invention, it is described
Protection circuit is connected with rectification module input terminal；The protection circuit includes insurance resistance RF and varistor RV, the pressure
The both ends quick resistance RV are connected with rectification module input terminal respectively, and mono- ends insurance resistance RF are connected on varistor RV and rectification mould
At the tie point of block.This practicality plays LED power input terminal by insuring the setting of resistance RF and varistor RV
Overvoltage and overcurrent protection function,
It is further used as preferred embodiment, in specific embodiment of the present invention, the switch voltage-stabilizing module is
It include the non-isolated adjusting and voltage-reduction switch circuit of model BP2319 current constant control chips.The current constant control chip of the model is suitable
It is inputted for 85V to 265V gamut alternating currents, and total harmonic distortion amount is low.
It is further used as preferred embodiment, to improve the protection mechanism of power supply described in the utility model, this practicality is new
Further include over-voltage protection module in type specific implementation mode, the switch voltage-stabilizing module output end and over-voltage protection module
It is connected, the over-voltage protection module includes resistance R2, resistance R3, capacitance C5, thyristor SCR and model MC3423 voltages
Detection chip, the resistance R2 and resistance R3 are connected between switch voltage-stabilizing module output end and ground, the voltage checking chip
Second pin be connected between resistance R2 and resistance R3, third pin and the 4th pin short circuit, third pin are connect by capacitance C5
Ground, the 8th pin are extremely connected with thyristor scr gate, and the thyristor SCR anodes are connected with switch voltage-stabilizing module output end, cathode
Ground connection.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (4)
1. a kind of LED power, it is characterised in that：Including rectification module, filter module, switch voltage-stabilizing module and passive Fill valley electricity
Road, the rectification module output end are connected with filter module input terminal, and the filter module output end and switch voltage-stabilizing module are defeated
Enter end to be connected, the passive valley fill circuit is arranged between rectification module and filter module；The passive valley fill circuit includes electricity
Hold C1~C4, diode D1~D3 and resistance R1, the rectification module output end to connect by concatenated capacitance C3 and capacitance C4
Ground, the rectification module output end are connected by capacitance C2 with diode D1 anodes, and the diode D1 cathode successively pass through electricity
It hinders R1 and capacitance C1 to be grounded, the diode D2 plus earths, the diode D2 cathode are connected with diode D1 anodes, described
Diode D3 anodes are connected between resistance R1 and capacitance C1, and the diode D3 cathode are connected with rectification module output end.
2. a kind of LED power according to claim 1, it is characterised in that：Further include protection circuit, the protection circuit and
Rectification module input terminal is connected；The protection circuit includes insurance resistance RF and varistor RV, the varistor RV two
End is connected with rectification module input terminal respectively, and mono- ends insurance resistance RF are connected on the tie point of varistor RV and rectification module
Place.
3. a kind of LED power according to claim 2, it is characterised in that：The switch voltage-stabilizing module be include model
For the non-isolated adjusting and voltage-reduction switch circuit of BP2319 current constant control chips.
4. a kind of LED power according to claim 3, it is characterised in that：Further include over-voltage protection module, the switch
Voltage stabilizing module output end is connected with over-voltage protection module, and the over-voltage protection module includes resistance R2, resistance R3, capacitance
C5, thyristor SCR and model MC3423 voltage checking chips, the resistance R2 and resistance R3 are connected on switch voltage-stabilizing module
Between output end and ground, the second pin of the voltage checking chip is connected between resistance R2 and resistance R3, third pin and
Four pin short circuits, third pin are grounded by capacitance C5, and the 8th pin is extremely connected with thyristor scr gate, and the thyristor SCR is just
Pole is connected with switch voltage-stabilizing module output end, cathode ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820201451.5U CN207802470U (en) | 2018-02-05 | 2018-02-05 | A kind of LED power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820201451.5U CN207802470U (en) | 2018-02-05 | 2018-02-05 | A kind of LED power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207802470U true CN207802470U (en) | 2018-08-31 |
Family
ID=63267370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820201451.5U Expired - Fee Related CN207802470U (en) | 2018-02-05 | 2018-02-05 | A kind of LED power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207802470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401360A (en) * | 2019-08-14 | 2019-11-01 | 成都克伏特航空设备有限公司 | A kind of output system of passive signal |
-
2018
- 2018-02-05 CN CN201820201451.5U patent/CN207802470U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110401360A (en) * | 2019-08-14 | 2019-11-01 | 成都克伏特航空设备有限公司 | A kind of output system of passive signal |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |