CN207678050U - A kind of LED lamp improving white light efficiency - Google Patents

A kind of LED lamp improving white light efficiency Download PDF

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Publication number
CN207678050U
CN207678050U CN201721802154.8U CN201721802154U CN207678050U CN 207678050 U CN207678050 U CN 207678050U CN 201721802154 U CN201721802154 U CN 201721802154U CN 207678050 U CN207678050 U CN 207678050U
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China
Prior art keywords
led lamp
white light
light efficiency
illumination
color
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Active
Application number
CN201721802154.8U
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Chinese (zh)
Inventor
黄荣丰
陈志曼
王国海
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.)
Guangzhou Yajiang Photoelectric Equipment Co Ltd
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Guangzhou Yajiang Photoelectric Equipment Co Ltd
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Abstract

A kind of LED lamp improving white light efficiency disclosed by the utility model, including multiple color LED lamp beads, each color LED lamp bead is connected with LED drive module and PWM control modules in turn, and the PWM control modules are by changing the driving current that LED drive module exports described in duty cycle adjustment.A kind of LED lamp of raising white light efficiency of the utility model is by adjusting the illumination of color LED lamps and lanterns, lower power consumption when LED lamp all colours all light being made externally to show white light, and light efficiency improves, and under identical radiating condition, keeps the performance of LED lamp more stable.

Description

A kind of LED lamp improving white light efficiency
Technical field
The utility model belongs to field of illumination lamp technology, and in particular to a kind of LED lamp improving white light efficiency.
Background technology
Current color LED lamps and lanterns, generally RGB or RGBW forms, when all light shows white light, colour temperature is more than 100000K.But in practical applications, the colour temperature needed does not require more than 10000K generally, and lamps and lanterns all light can be made when showing white light At some unnecessary power consumptions, the light efficiency of product is reduced, and the heat dissipation cost of product also can be relatively high.
Utility model content
The purpose of this utility model is to provide a kind of LED lamps improving white light efficiency, by adjusting color LED lamps and lanterns Illumination so that lamps and lanterns all colours all light show white light when lower power consumption, light efficiency improve, under identical radiating condition, make The performance of LED lamp is more stable.
Technical solution used by the utility model is:A kind of LED lamp improving white light efficiency, including multiple colours LED lamp bead, each color LED lamp bead are connected with LED drive module and PWM control modules in turn, and the PWM controls mould Block is by changing the driving current that LED drive module exports described in duty cycle adjustment.
Further, multiple PWM control modules are commonly connected to MCU controllers.
Further, the MCU controllers are also associated with the photograph for obtaining the color LED lamp bead each color illumination Spend acquisition module.
Example, the illumination acquisition module is colored illumination photometer.
Example, the MCU controllers are FPGA.
Example, the color LED lamp bead is the lamp bead of RGB color or RGBW colors.
A kind of LED lamp of raising white light efficiency of the utility model makes LED by adjusting the illumination of color LED lamps and lanterns Lower power consumption when lamps and lanterns all colours all light externally shows white light, light efficiency improve, and under identical radiating condition, make LED lamp Performance it is more stable.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for the LED lamp improving white light efficiency of the utility model.
In figure, 1.MCU controllers, 2.PWM control modules, 3.LED drive modules, 4. illumination acquisition modules.
Specific implementation mode
Referring to Fig. 1, a kind of LED lamp improving white light efficiency provided by the utility model, including multiple RGB colors or The color LED lamp bead of RGBW colors, each color LED lamp bead are connected with LED drive module 3 and PWM control modules 2, PWM in turn The drive for driving color LED lamp bead luminous that control module 2 is exported by changing LED drive module 3 described in duty cycle adjustment Streaming current.
In order to control with realizing precision, above-mentioned PWM control modules 2 are commonly connected to MCU controllers 1, MCU controllers 1 Then illumination acquisition module 4 is utilized to obtain color LED lamp bead each color illumination.
Example, illumination acquisition module 4 can be colored illumination photometer.MCU controllers 1 can be that FPGA is (programmable to patrol Collect control device).
The LED lamp of the utility model includes the lamp bead of multiple RGB or RGBW colors, and the lamp bead electric current of each color can be with It is individually controlled by PWM control modules 2 and LED drive module 3.When color is used alone in lamps and lanterns, pwm signal control circuit The illumination of lamps and lanterns is not controlled.When lamps and lanterns use the white light of all light, it is no more than using the colour temperature of white light due to conventional 10000K, and white light colour temperature when lamps and lanterns all colours all light is generally more than 100000K.Therefore, the LED light constituted for RGB Tool controls PWM control module 2 adjustment period duty ratios, the control lamps and lanterns that control LED drive module 3 exports by MCU controllers 1 The operating current of each color, the adjustment lower color B of lamps and lanterns light efficiency (or R and B), the illumination ratio of tri- kinds of colors of RGB after adjustment Reach (6-6.5):12:(0.9-1.1) can be such that the white light colour temperature of lamps and lanterns reaches or close to 10000K;And for the lamp of RGBW Tool, the illumination of general W is 1.3-1.4 times of the illumination of G, and by PWM control modules 2, the illumination ratio of RGBW is adjusted to (5- 5.2):10:(0.9-1.1):When (13-14), the white light colour temperature of lamps and lanterns can be made to reach or close to 10000K, since R/B is to lamp The contribution for having illumination is relatively low, and the whole luminance reduction of lamps and lanterns is limited at this time, but power consumption is but substantially reduced, and the light efficiency of lamps and lanterns is bright It is aobvious to be promoted.Under the premise of not influencing using effect, the lower power consumption of lamps and lanterns, the performance of product is more under identical radiating condition Stablize, light efficiency, which has, to be obviously improved.
The technical solution of the utility model is made below by a specific embodiment and being further described in detail.
The present embodiment is described in detail by taking a LED colours PAR lamp as an example.The color of lamps and lanterns is RGBW, the wherein work(of R Rate is 40W, and illumination is 1000lx when all light;The power of G is 48W, and illumination when all light is 1800lx;The power of B is 44W, entirely Illumination is 350lx when bright;The power of W is 45W, and illumination when all light is 2600lx.White light colour temperature is super when lamps and lanterns all light before adjustment Cross 100000K, lamp power 140W, illumination 5400lx, light efficiency 38lx/W.It is tested by calculating, by red current reduction It is original 90%, illumination 900lx, when by the current reduction of B being original 60%, illumination 180lx, the illumination of RGB at this time Ratio 5:10:1, and the white light colour temperature of lamps and lanterns is 10090K.The illumination of lamps and lanterns is 5180lx, power 112W at this time, and light efficiency is 46lx/W.It is calculated by testing and debugging, the power of lamps and lanterns is reduced to 112W, lower power consumption, the product under identical radiating condition Performance it is more stable;The light efficiency of product promotes 20% or more simultaneously.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change The scope of protection of the utility model is also should be regarded as into replacement.

Claims (6)

1. a kind of LED lamp improving white light efficiency, which is characterized in that including multiple color LED lamp beads, each colour LED lamp bead is connected with LED drive module (3) and PWM control modules (2) in turn, and the PWM control modules (2) pass through change The driving current of LED drive module described in duty cycle adjustment (3) output.
2. a kind of LED lamp improving white light efficiency as described in claim 1, which is characterized in that multiple PWM control mould Block (2) is commonly connected to MCU controllers (1).
3. a kind of LED lamp improving white light efficiency as claimed in claim 2, which is characterized in that the MCU controllers (1) It is also associated with the illumination acquisition module (4) for obtaining the color LED lamp bead each color illumination.
4. a kind of LED lamp improving white light efficiency as claimed in claim 3, which is characterized in that the illumination acquisition module (4) it is colored illumination photometer.
5. a kind of LED lamp improving white light efficiency as claimed in claim 2, which is characterized in that the MCU controllers (1) For FPGA.
6. a kind of LED lamp improving white light efficiency as described in claim 1, which is characterized in that the color LED lamp bead is The lamp bead of RGB color or RGBW colors.
CN201721802154.8U 2017-12-19 2017-12-19 A kind of LED lamp improving white light efficiency Active CN207678050U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721802154.8U CN207678050U (en) 2017-12-19 2017-12-19 A kind of LED lamp improving white light efficiency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721802154.8U CN207678050U (en) 2017-12-19 2017-12-19 A kind of LED lamp improving white light efficiency

Publications (1)

Publication Number Publication Date
CN207678050U true CN207678050U (en) 2018-07-31

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Family Applications (1)

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CN201721802154.8U Active CN207678050U (en) 2017-12-19 2017-12-19 A kind of LED lamp improving white light efficiency

Country Status (1)

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CN (1) CN207678050U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108156700A (en) * 2017-12-19 2018-06-12 广州市雅江光电设备有限公司 A kind of LED lamp and control method for improving white light efficiency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108156700A (en) * 2017-12-19 2018-06-12 广州市雅江光电设备有限公司 A kind of LED lamp and control method for improving white light efficiency

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