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LEDs - Circuit Board Indicators, Arrays, Light Bars, Bar Graphs

LED stands for Light-Emitting Diode. LED circuit boards are widely used in many applications. LED circuit boards are primarily used for providing indicators, arrays, light bars and bar graphs. LED circuit boards consist of multiple LEDs with controlling circuits, which can effectively achieve the functions of transmission, display and processing. The application field and working principle of LED circuit board is introduced in this paper.

Applications of LED Circuit Board

LED circuit boards are used in many applications such as automotive and avionics, lighting and display equipment, consumer electronics, medical and industrial applications. In automotive, LEDs are commonly used for turn signals and brake lights. In avionics, LEDs are used to provide indicator status for aircraft flight control systems. In lighting and display equipment, LEDs are used for colored lighting and high resolution display, etc. Additionally, LEDs are popular for consumer electronics, such as laptop and mobile phone, for backlighting display. In medical and industrial applications, LEDs are used for measuring instruments and sensors. All these applications demonstrate that LED circuit boards have versatile uses.

Working Principle of LED Circuit Board

The LED circuit board is composed of multiple LEDs and controlling circuits. LED is a kind of diode that can convert electrical energy into light energy. When the applied voltage is greater than the threshold voltage of LED, current passes through it and activates the LED, thereby emitting light. The controlling circuit can control the current through the LED, which can adjust the brightness of the light emitted by the LED. In addition, controlling circuit can be used to receive signals and adjust current through LED accordingly, so as to achieve different lighting effects. Thus, LED circuit board effectively combines multiple LEDs and controlling circuits to achieve various applications.

Conclusion

LED circuit board is very common in many applications due to the advantages of LED. LED circuit board is composed of multiple LEDs and controlling circuits, by which LED circuit board can be used to achieve indicators, arrays, light bars, bar graphs and so on. It is also possible to control the current through the LEDs, so as to adjust the light emitted by the LED. Finally, from the above introduction, we can see that LED circuit board has wide application fields and complex working principle.

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