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Circuit for realizing automatic color gradient of RGB three-primary-color LED lamp

A color gradient, LED light technology, applied in the direction of electrical components, energy-saving control technology, etc., can solve the problems of complex software programming support, occupying the system for a long time, increasing system power consumption, etc., to reduce costs, simplify difficulty, and reduce power consumption. Effect

Pending Publication Date: 2020-02-28
SI EN TECH XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of realizing color gradient needs to occupy the MCU resources of the system for a long time, requires complex software programming support, increases the power consumption of the system, and limits its application occasions.

Method used

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  • Circuit for realizing automatic color gradient of RGB three-primary-color LED lamp
  • Circuit for realizing automatic color gradient of RGB three-primary-color LED lamp
  • Circuit for realizing automatic color gradient of RGB three-primary-color LED lamp

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Embodiment Construction

[0042] Such as Figure 4 As shown, the present invention discloses a circuit for realizing automatic color gradient of RGB three-primary color LED lamps, which includes a color gradient duration decoding module 1, a timing main control module 2, a color gradient step calculation latch module 3 and an RGB Three-channel output controller4.

[0043] Wherein, the color gradient duration decoding module 1 is used to convert the gradient duration of the LED lamp into a binary value related to the PWM frequency required for calculating the step length, and output the converted gradient duration to the color gradient step calculation latch Module 3.

[0044] The timing main control module 2 is used to realize the timing control of the circuit. The timing main control module outputs time-sharing signals and latch signals to the color gradient step calculation latch module 3, which is used to control the color gradient step calculation latch module 3 Time-sharing calculation of the st...

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Abstract

The invention relates to a circuit for realizing automatic color gradient of an RGB three-primary-color LED lamp. The circuit is simple to realize and low in power consumption is low; in the implementation process, a main control chip only needs to write a register for the circuit to set the initial color, the target color and the gradual change duration and enables a color gradual change function, and the circuit can carry out calculation automatically and realizes automatic, linear and fine color gradual change effects according to setting without occupying resources of the main control chip(MCU) for a long time, so that the power consumption of the system is greatly reduced; and moreover, the color gradient circuit can be integrated in an LED driving chip, so that the difficulty of system-level lamp effect design is greatly reduced.

Description

technical field [0001] The invention relates to the field of LED lamp control, in particular to a circuit for realizing automatic color gradient of RGB tricolor LED lamps. Background technique [0002] LED lights have the advantages of high efficiency and energy saving, long life, green environmental protection and strong applicability, and are widely used in various fields in daily life. In addition to the application in the traditional lighting field, LED lights are increasingly used in various high-end entertainment products, smart homes, home appliances and smart wearable products. In these application fields, LED lights are required to achieve colorful lighting effects to meet various cool visual effects required by products. For example, the automatic adjustment of the brightness of LED lights forms an automatic breathing effect; realizes the precise restoration of various colors, realizes the effect of color gradients, and so on. This requires the LED control system...

Claims

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Application Information

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IPC IPC(8): H05B45/20
CPCY02B20/40
Inventor 王绍清郑鹏峰雷亚龙
Owner SI EN TECH XIAMEN