As a display device, LED has been increasingly used in more fields due to its high luminous efficiency, long service life, and easy control. Especially in 2005, it was widely used in urban/stage lighting systems. This article mainly introduces the types of LED lighting, LED chip control chip introduction, hardware design ideas and software design ideas.
Glossary
Color image points: In order to make the LED light display in color, it is necessary to form one pixel by at least two different color LEDs. Red, green and blue LEDs can be matched in a variety of ways depending on the brightness and gray level requirements, such as:
a) 1 red LED + 1 green LED + 1 blue LED, 3 LEDs display 256 grayscale colors.
b) 2 red LEDs + 1 green LED + 1 blue LED, 4 LEDs
RGB: refers to three types of LEDs: red, green, and blue.
LPD6803: It is a driver chip specially designed for LED lighting system. It has built-in SUPER-PWM, which can generate three-channel constant current drive and gray-scale modulation output.
Types of LED lights
point Light
Technical features: Apply the display principle of LED color screen, and reduce its pixel cost to reduce the overall cost. Each module is a color pixel (RGB).
Application environment: bar, KTV, stage, shopping mall, exhibition hall. As a music rhythm display, background wall decoration, etc.
LED rainbow tube
Technical Features: Each tube consists of multiple color pixels (RGB), each of which can independently produce 256 levels of color change. Application environment: decorative lighting in different places such as overpasses, river guardrails, and building exterior walls.
LED floor tile
Technical Features: Each module consists of multiple color pixels (RGB), which can control each pixel independently. Application environment: bar, KTV, stage. Decorative lighting as a floor or wall.
LED lighting control chip introduction
The LPD6803 is specifically designed for LED light driver chips with simple control.
Function description:
a. Built-in oscillator, scanning does not need to rely on the control board to provide the scan clock.
b. 2 control lines, simple control and wiring.
c. The data clock can be up to 25MHz and can have more cascaded outputs.
LED lighting control system hardware design ideas
LED lighting control system mainly includes two parts: pixel point driving unit and control board design.
LED wash wall lamp, as the name implies, let the light like water wash the wall, mainly used for building decoration lighting, and also used to outline the large buildings.Since LED has the characteristics of energy saving, high luminous efficiency, rich color and long life, the washing wall lamp of other light sources is gradually replaced by LED washing wall lamp in 2013.
Product size
Technical parameters
1. Main material:High - pressure cast aluminum, high - light ultra - white tempered glass, back flame retardant ABS;
2. Surface treatment:UV Polyester powder coating;
3. The light body color:Dark grey;
4. Safeguard procedures:Silica gel ring compacted waterproof;
5. Average lifetime:350mA20000hours,500mA15000hours;
6. Control mode:CC/DMX512;
7. Operating ambient temperature:-25℃~50℃
8. The light colored temperature: Red/Green/Yellow/Amber/Vermilion/Acid blue/3000K/4000K/5000K/6000K
9. Light distribution device:Optical lens series:8°/15°/25°/45°/10×30°/10×60°/20×40°
10. Working voltage:DC24V
11. Way to install:Single U/Double U Adjustable Angle bracket
12. Level of protection:IP65
13. Working environment humidity:10%~90%
Led Wall Washer Lamp,Led Wall Washer Light Fixtures,Led Wall Washer Flood Light ,Led Wall Washer Light Products
Jiangsu chengxu Electric Group Co., Ltd , http://www.satislighting.com