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LED control chip for power transmission signals

A control chip and power transmission technology, applied in the field of LED control chips, can solve the problems of complex assembly, high cable proportion and high production cost, and achieve the effect of reducing development cost, improving production efficiency and improving product profit.

Inactive Publication Date: 2018-08-28
深圳市梓晶微科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using the clock line and data line, or using the data line alone to transmit data, 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.
In view of this problem, the LED control chip proposed by the present invention uses a power line to transmit signals to solve the problem of high production cost and low yield caused by the data transmission line of the display screen

Method used

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  • LED control chip for power transmission signals
  • LED control chip for power transmission signals
  • LED control chip for power transmission signals

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Embodiment Construction

[0022] Below in conjunction with embodiment the present invention is further described in detail.

[0023] Such as figure 1 , image 3 As shown, an LED control chip for power transmission signals includes an oscillator, a reference circuit, a voltage detection circuit, a logic control circuit, a decoding circuit, a carrier data circuit, a chip address setting circuit, a luminance generating circuit and an output driving circuit; The oscillator is connected to the decoding circuit, the reference circuit is connected to the voltage detection circuit, the output terminal of the voltage detection circuit is connected to the input terminal of the decoding circuit, the decoding circuit is connected to the input terminal of the carrier data circuit, and the carrier The data circuit, the chip address setting circuit are connected to the logic control circuit, the output end of the logic controller is connected to the input end of the luminance generating circuit, and the input end of...

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Abstract

The invention discloses an LED control chip for power transmission signals. The chip comprises an oscillator, a reference circuit, a voltage detection circuit, a logic control circuit, a decoding circuit, carrier data, a chip address setting circuit, a luminance generating circuit and an output driving circuit. The chip adopts a power line to transmit the signals, the data signal is loaded on thepower line, extra clock line and data line are not needed. Data identification is carried out by detecting the voltage of the power line, the data signals on the power line are decoded, and the purpose of controlling the display effect is achieved.

Description

technical field [0001] The invention relates to an LED control chip, in particular to an LED control chip for power transmission signals. Background technique [0002] Nowadays, it is very popular to put business pictures and video advertisements through the display screen. At the beginning, most control chips used clock lines and data lines to transmit data to control the color and brightness of LEDs on the display screen, and gradually evolved into only one data line for transmission. control. However, using the clock line and data line, or using the data line alone to transmit data, has the problem that the length of the required cable 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. In addition to the power line, a DIN data input line and a DOUT data output line are required, at least three or four lines are required. At the same time, the two transmission lines between ...

Claims

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Application Information

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IPC IPC(8): H05B33/08G09G3/32H05B44/00
CPCG09G3/32H05B45/00Y02B20/30
Inventor 黄钦阳
Owner 深圳市梓晶微科技有限公司