CN204090204U - A kind of LED drive power - Google Patents
A kind of LED drive power Download PDFInfo
- Publication number
- CN204090204U CN204090204U CN201420192195.XU CN201420192195U CN204090204U CN 204090204 U CN204090204 U CN 204090204U CN 201420192195 U CN201420192195 U CN 201420192195U CN 204090204 U CN204090204 U CN 204090204U
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- China
- Prior art keywords
- circuit
- input
- pressure
- stabilizing
- down rectifying
- 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.)
- Expired - Fee Related
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Dc-Dc Converters (AREA)
- Led Devices (AREA)
Abstract
The utility model relates to a kind of power supply, a kind of LED drive power, comprise filter circuit of pressure-stabilizing, step-down rectifying circuit, governor circuit, mode selection circuit and 110V ac input circuit, described 110V ac input circuit is connected with step-down rectifying circuit input, described step-down rectifying circuit output is connected with filter circuit of pressure-stabilizing input, described mode selection circuit is connected with filter circuit of pressure-stabilizing output and governor circuit respectively.The utility model have energy-saving and cost-reducing, conversion efficiency is high, temperature rise is low, constant current output and can by switch in advantages such as total power, half-power and night-light MODE of operation all the time.In addition, it also has overcurrent, over-voltage protecting function, extends the useful life of whole illuminator, improves its safety and reliability.
Description
Technical field
The utility model relates to a kind of power supply, more particularly, relates to a kind of LED drive power.
Background technology
LED has the advantages such as environmental protection, energy-conservation, the life-span is long and is regarded as 21 century lighting source, has now started to replace conventional light source and has widely applied on various lighting.But, because LED self character determines that its driving power can not adopt same power supply with ordinary incandescent lamp, in order to avoid voltage fluctuation causes electric current increase thus damaged by LED, therefore LED work is required drives requirement fully to meet must to design new power supply, play the performance of LED to greatest extent, reduce failure rate.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model object is to provide a kind of LED drive power, and it has the advantages such as energy-saving and cost-reducing, conversion efficiency is high, temperature rise is low.In addition, this driving power also has overcurrent, over-voltage protecting function, extends the useful life of whole illuminator, improves its safety and reliability.
In order to realize foregoing invention object, solve problem existing in prior art, the technical scheme that the utility model is taked is: a kind of LED drive power, comprise filter circuit of pressure-stabilizing, step-down rectifying circuit, governor circuit, mode selection circuit and 110V ac input circuit, it is characterized in that: described 110V ac input circuit is connected with step-down rectifying circuit input, described step-down rectifying circuit output is connected with filter circuit of pressure-stabilizing input, described mode selection circuit is connected with filter circuit of pressure-stabilizing output and governor circuit respectively.
Described step-down rectifying circuit is selected from transformer pressure-reducing and full-bridge type rectification circuit, and this circuit have employed multiple piezo-resistances with overvoltage, overcurrent protection function, for preventing overvoltage, over-current phenomenon avoidance generation.
Described governor circuit is selected from AAP8130 chip.
Described mode selection circuit is selected from IRF7351 and CEM4948 chip.
Beneficial effect of the present invention is: a kind of LED drive power, comprise filter circuit of pressure-stabilizing, step-down rectifying circuit, governor circuit, mode selection circuit and 110V ac input circuit, described 110V ac input circuit is connected with step-down rectifying circuit input, described step-down rectifying circuit output is connected with filter circuit of pressure-stabilizing input, described mode selection circuit is connected with filter circuit of pressure-stabilizing output and governor circuit respectively.Compared with the prior art, the utility model have energy-saving and cost-reducing, conversion efficiency is high, temperature rise is low, constant current output and can by switch in advantages such as total power, half-power and night-light MODE of operation all the time.In addition, it also has overcurrent, over-voltage protecting function, extends the useful life of whole illuminator, improves its safety and reliability.
Accompanying drawing explanation
Fig. 1 is the utility model overall circuit block diagram.
Fig. 2 is the step-down rectifying circuit schematic diagram in the utility model.
Fig. 3 is the governor circuit schematic diagram in the utility model.
Fig. 4 is the mode selection circuit schematic diagram in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of LED drive power, comprise filter circuit of pressure-stabilizing, step-down rectifying circuit, governor circuit, mode selection circuit and 110V ac input circuit, it is characterized in that: described 110V ac input circuit is connected with step-down rectifying circuit input, described step-down rectifying circuit output is connected with filter circuit of pressure-stabilizing input, described mode selection circuit is connected with filter circuit of pressure-stabilizing output and governor circuit respectively.Described step-down rectifying circuit is selected from transformer pressure-reducing and full-bridge type rectification circuit, and described governor circuit is selected from AAP8130 chip, and described mode selection circuit is selected from IRF7351 and CEM4948 chip.Whole LED drive power circuit is powered by 110V alternating voltage, after step-down rectifying circuit and filter circuit of pressure-stabilizing, voltage is down to direct current 30-40V, then carries out circuit-mode by governor circuit control model selection circuit and switch at full-power mode, Half Power Mode and night-light.Utilize the open circuit over-voltage protecting function of AC-DC constant-current source, be stand-by circuit and night-light circuit supply, save the standby power of traditional sense, optimize BOM cost, and improve the response time of night-light.In fact OFF state does not cut off 220VAC loop, and electric shock accidents can not be caused to occur.
The utility model advantage is: a kind of LED drive power have energy-saving and cost-reducing, conversion efficiency is high, temperature rise is low, constant current output and can by switch in advantages such as total power, half-power and night-light MODE of operation all the time.In addition, it also has overcurrent, over-voltage protecting function, extends the useful life of whole illuminator, improves its safety and reliability.
Claims (1)
1. a LED drive power, comprise filter circuit of pressure-stabilizing, step-down rectifying circuit, governor circuit, mode selection circuit and 110V ac input circuit, described 110V ac input circuit is connected with step-down rectifying circuit input, described step-down rectifying circuit output is connected with filter circuit of pressure-stabilizing input, described mode selection circuit is connected with filter circuit of pressure-stabilizing output and governor circuit respectively, described governor circuit is selected from AAP8130 chip, described mode selection circuit is selected from IRF7351 and CEM4948 chip, it is characterized in that: described step-down rectifying circuit is selected from transformer pressure-reducing and full-bridge type rectification circuit, have employed and there is overvoltage, multiple piezo-resistances of overcurrent protection function, for preventing overvoltage, over-current phenomenon avoidance occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192195.XU CN204090204U (en) | 2014-04-19 | 2014-04-19 | A kind of LED drive power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192195.XU CN204090204U (en) | 2014-04-19 | 2014-04-19 | A kind of LED drive power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204090204U true CN204090204U (en) | 2015-01-07 |
Family
ID=52182868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420192195.XU Expired - Fee Related CN204090204U (en) | 2014-04-19 | 2014-04-19 | A kind of LED drive power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204090204U (en) |
-
2014
- 2014-04-19 CN CN201420192195.XU patent/CN204090204U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20190419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |