Unlock instant, AI-driven research and patent intelligence for your innovation.

High power constant current drive RGB brightening LED light bar controller and high power constant current drive RGB brightening LED lamp

A technology of LED strips and constant current driving, applied in lighting devices, light sources, electrical components, etc., can solve the problems of pixel grayscale adjustment accuracy, affect the screen display effect, etc., and achieve the effect of avoiding signal attenuation.

Inactive Publication Date: 2016-02-17
NANJING POLYTECHNIC INSITUTE
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some high-power LED lamps use multiple constant current chips to increase the current in parallel, but this will affect the pixel gray adjustment accuracy, and ultimately affect the picture display effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High power constant current drive RGB brightening LED light bar controller and high power constant current drive RGB brightening LED lamp
  • High power constant current drive RGB brightening LED light bar controller and high power constant current drive RGB brightening LED lamp
  • High power constant current drive RGB brightening LED light bar controller and high power constant current drive RGB brightening LED lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Below in conjunction with accompanying drawing and embodiment the present invention is specifically introduced as follows:

[0015] High-power constant current drive RGB lighting LED strip controller, including: DC-DC conversion circuit, mainly realizes the conversion of DC24V into 3.3V, and supplies power for microcontrollers and other integrated circuit chips; microcontroller circuit, mainly realizes receiving Image signal, and convert the image signal into three PWM signal outputs, and output the image signal and DC24V at the same time; three high-power constant current drive circuits, respectively receive three PWM signals from the microcontroller, and sequentially drive the LED red light, LED green light and LED yellow light.

[0016] The DC-DC conversion circuit includes LM2576, the input 24V DC signal is introduced through the connector (JP1), the No. 1 pin of the connector is connected to the No. 1 pin of LM2576, the No. 3 and No. 5 pins of LM2576 are grounded, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high power constant current drive RGB brightening LED light bar controller which comprises a DC-DC conversion circuit, a microcontroller circuit and three high power constant current drive circuits, wherein the DC-DC conversion circuit is mainly used for converting DC 24V into 3.3 V and supplies power to a microcontroller and other integrated circuit chips; the microcontroller circuit is mainly used for receiving image signals and converting the image signals into three PWM signals to be output and outputs the image signals and DC 24V simultaneously; the three high power constant current drive circuits receive three PWM signals from the microcontroller and drives a red LED lamp, a green LED lamp and a yellow LED lamp sequentially. The high power constant current drive RGB brightening LED light bar controller can output high power constant current so as to drive RGB brightening LED lamps, the LED lamps receive and transmit relay transmission signals, and signal attenuation of controller signals to a tail end LED light bar in a long-distance transmission process is avoided.

Description

technical field [0001] The invention relates to a high-power constant-current driving RGB brightening LED lamp bar controller and a high-power constant-current driving RGB brightening LED lamp. Background technique [0002] In recent years, with the improvement of urban modernization, urban lighting has become an essential element of a modern city. The lighting of commercial buildings and urban landmarks is getting more and more attention. At present, building lighting mainly adopts the design mode of LED display screen, and LED lamps are installed on the external wall of the building as modules. Each lamp has multiple pixels, and the lamps are interconnected, covering the entire building wall. A complete picture is formed outside, and then the controller reads the graphics card signal of the real-time displayed computer screen picture, converts the graphics card signal into RGB data signal and sends it to the LED lamp, so as to realize the synchronous display of the buildi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
Inventor 方赓邓玉茹李林林
Owner NANJING POLYTECHNIC INSITUTE