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 PDF

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Publication number
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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China
Prior art keywords
current
constant
led
secondary constant
circuit
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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
Application number
CN2012200574214U
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Chinese (zh)
Inventor
白晔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DALIAN LIJOYS OPTO-ELECTRONICS Co Ltd
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DALIAN LIJOYS OPTO-ELECTRONICS Co Ltd
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Priority to CN2012200574214U priority Critical patent/CN202551418U/en
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Publication of CN202551418U publication Critical patent/CN202551418U/en
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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

A kind of LED light fixture based on the secondary constant-current supply
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.
CN2012200574214U 2012-02-22 2012-02-22 LED (Light-Emitting Diode) lamp based on secondary constant-current power supply Expired - Fee Related CN202551418U (en)

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

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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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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