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Control method of power supply carrier communication LED

A technology of carrier communication and control method, applied in electric light source, electroluminescence light source, electric signal transmission system, etc., can solve the problem of large number of wires, and achieve the effect of improving production efficiency, reducing development cost and improving product profit rate

Active Publication Date: 2016-11-16
深圳市菉华半导体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of the large number of wires in the LED control process

Method used

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  • Control method of power supply carrier communication LED
  • Control method of power supply carrier communication LED
  • Control method of power supply carrier communication LED

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Experimental program
Comparison scheme
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Embodiment Construction

[0033] like figure 1 As shown, a power carrier communication LED control circuit includes a control module 10, a drive module 20 and an LED module 30, the control module 10 includes an MCU and a voltage adjustment module, and the MCU outputs data control signals for controlling the LED module to the voltage adjustment Module, the voltage adjustment module modulates the data control signal, and converts the data control signal into high and low levels, and uses the combination of high level for T1 time and low level for T2 time to represent the two-dimensional code 1, and low level for The combination of continuous T1 time and high level continuous T2 time indicates two-dimensional code 0, the high level takes the power supply voltage of the voltage adjustment module, and the low level takes any value lower than the power supply voltage value of the voltage adjustment module. In this embodiment The low level is one-half of the power supply voltage value of the voltage adjustmen...

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Abstract

The invention discloses a control method of a power supply carrier communication LED. The control method comprises the following steps that A1, a control module generates an LED data control signal and modulates the data control signal, and then applies the modulated data control signal to a power supply voltage of a driving module; and A2, the driving module comprises an address setting end and an LED output end; the modulated data control signal is used as the power supply input; the power supply voltage is demodulated to obtain the data control signal; and the operation of LED lamps is controlled according to the data control signal. According to the control method, only two lines are required to realize the control on the multiple LED modules, and a complicated and attractive flickering effect is achieved.

Description

technical field [0001] The invention relates to the field of LED control, in particular to a power carrier communication LED control driving method. Background technique [0002] Christmas lights are decorations commonly used on Christmas trees in Western countries. Use the control circuit to realize trick effects such as flowing water and flickering, creating a better festive atmosphere. In addition to household use, shops, streets, etc. are also widely used. At present, it is also used more and more in China. [0003] The components of Christmas lights are mainly several strings of lights and a control box. Because everyone has different preferences, generally several different flashing patterns are provided for the user to choose, and the patterns can be switched by a button on the control box. The most common Christmas light control circuit on the market is a four-way eight-segment control that provides eight flashing pattern options. Usually only some basic flashin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B37/02G08C19/00H05B44/00H05B45/10H05B45/3725
CPCG08C19/00H05B45/10H05B45/00H05B47/185
Inventor 丁勇
Owner 深圳市菉华半导体有限公司