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Device and method for controlling color mixing of LED lights

A technology of LED lamp and LED lamp circuit, applied in the field of LED color matching

Active Publication Date: 2018-11-02
FOSHAN YIFENG ELECTRIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the above problems, the first object of the present invention is to provide a device for controlling the color mixing of LED lamps, which is simple and effective to ensure consistent color mixing of LED lamps, and at the same time, LED lamps will not have the problem of overheating

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  • Device and method for controlling color mixing of LED lights
  • Device and method for controlling color mixing of LED lights
  • Device and method for controlling color mixing of LED lights

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Embodiment Construction

[0038] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0039] Such as Figure 1-Figure 6 As shown, the device for controlling the color mixing of LED lamps according to the present invention includes an MCU control circuit 1, a PWM drive circuit 2, an LED lamp drive circuit 3, an LED lamp circuit 4, and a temperature detection circuit 5; wherein, the temperature detection The circuit 5 and the PWM driving circuit 2 are connected to the MCU control circuit 1 respectively; the PWM driving circuit 2 is connected to the LED lamp circuit 4 through the LED driving circuit 3 .

[0040] Wherein, the temperature detection circuit 5 is used to collect the junction temperature information of the LED lamp in the LED lamp circuit. T...

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Abstract

The invention discloses a device for controlling the color mixing of LED lamps, which comprises an LED lamp circuit, a temperature detection circuit, an MCU control circuit, an LED lamp drive circuit and a PWM drive circuit; the temperature detection circuit and the PWM drive circuit are respectively connected with the The MCU control circuit is connected; the PWM drive circuit is connected with the LED lamp circuit through the LED drive circuit; the invention also discloses a method for controlling the color mixing of the LED lamp. By adopting the present invention, it is simple and effective to ensure consistent color mixing of LED lamps, and at the same time, the problem of excessive temperature of LED lamps will not occur.

Description

technical field [0001] The invention belongs to the technical field of LED color matching, and in particular relates to a device and method for controlling color mixing of LED lamps. Background technique [0002] At present, the color mixing of general LED lamps mostly adopts additive color mixing, which projects different primary colors into the same area and then mixes any color in the color gamut by controlling the ratio of the primary colors. However, in practical applications, after the LED lamps are used for a period of time, the temperature will change. When the temperature of the LED rises, because the temperature characteristics of each color of the LED are different, the ratio of the color mixing of various primary colors at the same temperature will change. As a result, the mixed color is different from the mixed color when the temperature is low. This is especially true when several lamps are placed together and the temperature of each lamp is not the same. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08H05B44/00H05B45/12H05B45/20H05B45/30
CPCH05B45/20
Inventor 黄大哲
Owner FOSHAN YIFENG ELECTRIC IND