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LED drive device with adjustable color temperature and brightness

A technology of light-emitting diodes and driving devices, which is applied in the field of light-emitting diode driving devices, and can solve the problems of inability to adjust color temperature and brightness in a variety of ways

Active Publication Date: 2016-09-14
BRIGHTEK (SHENZHEN) OPTOELECTRONIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above-mentioned light-emitting diode lamp with variable color temperature in the related art is that the color temperature and brightness cannot be adjusted in a variety of ways; that is, it can only present 5500K cool white, or 3000K warm white, or 4250K cool white and warm white. , and the luminance between cool white and warm white is only the luminance of cool white alone plus the luminance of warm white alone

Method used

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  • LED drive device with adjustable color temperature and brightness

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0032] Please refer to figure 1 , which is a block diagram of an LED driving device with adjustable color temperature and brightness of the present invention. An LED driving device 10 with adjustable color temperature and brightness is applied to an LED device 20 ; the LED device 20 includes a first LED unit 202 and a second LED unit 204 .

[0033] The LED driving device 10 with adjustable color temperature and brightness includes a processing unit 102, a first LED driving unit 104, a second LED driving unit 106, a LED brightness signal generating unit 108 and a LED color temperature signal Generate unit 110 .

[0034] The first LED driving unit 104 is electrically connected to the first LED unit 202 and the processing unit 102; the second LED driving unit 106 is electrically connected to the second LED unit 204 and the proc...

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Abstract

The invention discloses a light emitting diode driving apparatus capable of adjusting a color temperature and brightness, which employs a pulse wave width modulation signal to drive a light fixture. The light fixture comprises at least two light emitting diodes with different color temperatures. By using the apparatus provided by the invention, the color temperature and the brightness of the light emitting diode light fixture can be adjusted in a diversified mode.

Description

technical field [0001] The invention relates to a light emitting diode driving device, in particular to a light emitting diode driving device capable of adjusting color temperature and brightness. Background technique [0002] LED is a new technology product of modern lighting; LED can be manufactured to have different color temperatures, such as cool white with a color temperature of 5500K or warm white with a color temperature of 3000K, etc., so as to provide users with different usage scenarios and needs. [0003] A LED lamp with variable color temperature in the related art usually includes more than two LEDs with different color temperatures, for example, one LED is cool white and the other LED is warm white. When the user wants to make the LED lamp appear cool white, the cool white LED will be turned on to emit light, while the warm white light emitting diode will not be turned on to emit light; when the user wants to make the LED lamp appear warm white, Warm white LE...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
Inventor 黄建中吴志明张彦雄蔡育宗
Owner BRIGHTEK (SHENZHEN) OPTOELECTRONIC CO LTD