CN202551418U - LED (Light-Emitting Diode) lamp based on secondary constant-current power supply - Google Patents
LED (Light-Emitting Diode) lamp based on secondary constant-current power supply Download PDFInfo
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- CN202551418U CN202551418U CN2012200574214U CN201220057421U CN202551418U CN 202551418 U CN202551418 U CN 202551418U CN 2012200574214 U CN2012200574214 U CN 2012200574214U CN 201220057421 U CN201220057421 U CN 201220057421U CN 202551418 U CN202551418 U CN 202551418U
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- led
- secondary constant
- circuit
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Abstract
The utility model discloses an LED (Light-Emitting Diode) lamp based on a secondary constant-current power supply. The LED lamp based on the secondary constant-current power supply comprises a primary constant-current source and corresponding secondary constant-current circuits, wherein the secondary constant-current circuits are arranged in parallel according to the quantity of loops of the LED lamp; each secondary constant-current circuit is connected with the primary constant-current source; a plurality of LED lamps are connected in series into each secondary constant-current circuit; and the output current of each secondary constant-current circuit is equal. According to the LED lamp, a secondary constant-current design is adopted on the LED constant-current source, and multi-path output is adopted, so that the inside of each circuit is of a serial form, the output current of each branch is kept equal by using the secondary constant-current circuit, the currents of LED devices of all circuits are completely consistent, and uniform brightness is achieved finally.
Description
Technical field
The utility model relates to a kind of LED light fixture, especially a kind of dustproof LED light fixture with anticreep groove.
Background technology
The LED light fixture uses the ultra-bright LED white light as illuminating source, and its not only superpower energy-conservation more environmental protection is one of product of national green energy conservation illuminating engineering focus development, is the major product that replaces traditional light fixture at present.Need not starter and ballast, start soon, power is little, and no stroboscopic is not easy visual fatigue; Useful life was at 50,000-80,000 hours.
The LED light fixture that power is big slightly is to use the plurality of LEDs diode to form through the circuit form that series connection and parallel connection mix basically.The LED device is a constant current device; This current constant that just requires to be added in above it is constant, and electric current also will be consistent between these different LED of combining through connection in series-parallel, if electric current is different; Brightness will be different, whole light fixture seem with regard to have bright have dark and inhomogeneous.Though what the light fixture of LED used is constant-current supply; Just the output current of power supply can be described as invariable; Only if but all LED devices are that the electric current among each LED is all identical for can guaranteeing of being cascaded fully; As long as the circuit of parallel connection is arranged, just the electric current between each branch road can't strictly guarantee unanimity.Must cause the LED luminosity uneven like this.
Summary of the invention
In order to overcome the uneven technical problem of LED luminosity, the utility model provides a kind of LED light fixture based on the secondary constant-current supply.
Technical scheme: a kind of LED light fixture based on the secondary constant-current supply is provided.Said LED light fixture based on the secondary constant-current supply comprises: constant-current source, by the feeder number parallel connection of LED light fixture corresponding secondary constant-current circuit is set, each secondary constant-current circuit is connected with a constant-current source; The a plurality of LED lamps of series connection in each secondary constant-current circuit, the output current of each secondary constant-current circuit equates.
Beneficial effect: the utility model has been taked secondary constant current design on the LED constant-current source; Multichannel output; Make that the inside on each road all is the series connection form; The constant-current circuit of secondary guarantees that the output current of each branch road equates, thereby the LED device current that reaches whole circuit is all in full accord, finally reaches the even brightness effect.
Description of drawings
Fig. 1 the utility model is based on the structure principle chart of the LED light fixture of secondary constant-current supply.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
With reference to Fig. 1, the LED light fixture based on the secondary constant-current supply of present embodiment is on the basis of common constant-current supply, by the feeder number of LED light fixture corresponding secondary constant-current circuit is set, and guarantees that the branch current in each loop equates.This fitting structure comprises: constant-current source, by the feeder number parallel connection of LED light fixture corresponding secondary constant-current circuit is set, each secondary constant-current circuit is connected with a constant-current source; The a plurality of LED lamps of series connection in each secondary constant-current circuit, the output current of each secondary constant-current circuit equates.
Above content is to combine optimal technical scheme to the further explain that the present invention did, and can not assert that the practical implementation of invention only limits to these explanations.Under the present invention, the those of ordinary skill of technical field, under the prerequisite that does not break away from design of the present invention, simple deduction and replacement can also be made, all protection scope of the present invention should be regarded as.
Claims (1)
1. LED light fixture based on the secondary constant-current supply; It is characterized in that; Said LED light fixture based on the secondary constant-current supply comprises: constant-current source, by the feeder number parallel connection of LED light fixture corresponding secondary constant-current circuit is set, each secondary constant-current circuit is connected with a constant-current source; The a plurality of LED lamps of series connection in each secondary constant-current circuit, the output current of each secondary constant-current circuit equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200574214U CN202551418U (en) | 2012-02-22 | 2012-02-22 | LED (Light-Emitting Diode) lamp based on secondary constant-current power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200574214U CN202551418U (en) | 2012-02-22 | 2012-02-22 | LED (Light-Emitting Diode) lamp based on secondary constant-current power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202551418U true CN202551418U (en) | 2012-11-21 |
Family
ID=47171972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200574214U Expired - Fee Related CN202551418U (en) | 2012-02-22 | 2012-02-22 | LED (Light-Emitting Diode) lamp based on secondary constant-current power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202551418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260313A (en) * | 2013-05-23 | 2013-08-21 | 中山市德源照明电器有限公司 | Shunting-type LED dimming drive system and method thereof |
-
2012
- 2012-02-22 CN CN2012200574214U patent/CN202551418U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260313A (en) * | 2013-05-23 | 2013-08-21 | 中山市德源照明电器有限公司 | Shunting-type LED dimming drive system and method thereof |
| CN103260313B (en) * | 2013-05-23 | 2015-12-09 | 中山市德源照明电器有限公司 | A kind of shunting LED dimming drive system and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130222 |