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Workings And Functions Of LED (Light Emitting Diode) In Electronic Circuit

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Workings And Functions Of LED (Light Emitting Diode) In Electronic Circuit - Light Emitting Diode or LED is often abbreviated with electronic components that can emit monochromatic light when a given voltage. LED is a family of diodes made of semiconductor construction. The colors of light emitted by the LED depends on the type of semiconductor material used. LEDs can emit infrared light that is not visible to the eye that can be used as an infrared sensor as found on the Remote Control Remote Control TV or other electronic devices. 

Workings And Functions Of LED (Light Emitting Diode) In Electronic Circuit
 LED (Light Emitting Diode) In Electronic Circuit
 LED shape similar to a small incandescent lamp and can be easily paired with the electronic device. In contrast with Incandescent Lamp, LED does not require burning filament so as not to cause heat to produce light. Therefore, the current LED (Light Emitting Diode) which is small has been widely used as a torch light in LCD TV to replace the lamp tube and is also widely used in digital techniques. 

Workings of LED (Light Emitting Diode) in electronic circuit is similar to the diode which has two poles, namely poles Positive (P) and the negative pole (N). LEDs will only emit light when energized the forward voltage of the anode toward the cathode.

Workings And Functions Of LED (Light Emitting Diode) In Electronic Circuit
 Symbol And Polarity Of LED (Light Emitting Diode) In Electronic Circuit
LED consists of a semiconductor chip in doping thus creating a junction P and N. When the LED forward voltage is fed from the anode (P) to the cathode (K), excess electrons in the N-type material will move to areas that excess Hole area positively charged (P-type material). When electrons meet with Hole will release photons and emits monochromatic light (single color).
Here are a few to apply LEDs in everyday life: 
  • Lamp Illumination.
  •  Street Lighting Lamps.
  •  Advertising boards (Advertising).
  •  Backlight LCD (TV, Mobile Display, Monitor).
  •  Interior and Exterior Lighting Decoration.
  • Indicator Lights.
  • Infrared transmitter on the Remote Control (TV, AC, AV Player)

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22 Responses to " Workings And Functions Of LED (Light Emitting Diode) In Electronic Circuit"

  1. UnknownJuly 1, 2015 at 6:37 AM

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    It appears to me that LEDs often fail to match illumination levels of the fixtures they succeed because utilities stock a very limited range of LED wattages, and use them to replace old fixtures with widely varying illumination levels. I recently saw an LED conversion proposal that planned to use the same 58-watt LED to replace both 100 watt and 175 watt mercury vapor lamps, which have drastically different lumen outputs. That makes sense from the operational and financial perspective of the utility, but not from a lighting design (and customer satisfaction!) perspective. led strip manufacturers

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