A power carrier communication led control chip
A control chip and carrier communication technology, applied in the direction of electric light source, electroluminescent light source, light source, etc., can solve the problems of high cable specific gravity, long cable length, complicated assembly, etc., achieve less peripheral, less cable, and improve The effect of production efficiency
Active Publication Date: 2018-07-20
深圳市菉华科技有限责任公司
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Problems solved by technology
[0004] Whether it is the traditional Christmas light control chip or the method of cascading data transmission, the problem is that the length of the cable required is very long, the cost of the cable accounts for a high proportion of the total cost, and the assembly is complicated and requires a lot of manpower.
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[0030] Such as 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 adjust...
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The invention discloses a power supply carrier communication LED control chip and a control circuit using the chip. The chip includes an oscillation circuit, a reference voltage circuit, a voltage comparison circuit, a logic control circuit, a carrier data circuit, a chip address setting circuit, and a brightness control circuit. Generating circuit, output driving circuit. The oscillating circuit is connected to the carrier data circuit, the reference voltage circuit is connected to a voltage comparison circuit, the voltage comparison circuit is connected to the carrier data circuit, and the carrier data circuit and the chip address setting circuit are connected to the logic control circuit. circuit, the logic controller is connected to the luminance generating circuit, and the luminance generating circuit is connected to the output driving circuit. The power carrier communication LED control circuit including the chip also includes a control module and an LED module. The control circuit only needs two wires to control multiple LED modules and realize complex and beautiful flickering effects.
Description
technical field [0001] The invention relates to the field of LED control, in particular to the field of a power carrier communication LED control drive chip. Background technique [0002] Christmas lights are decorations commonly used on Christmas trees in Western countries. Use the control chip 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 chip on the market is a four-way eight-segment control that provides eight flashing pattern options. Usually only some basic flas...
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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00
Inventor 丁勇
Owner 深圳市菉华科技有限责任公司