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  1. byjus.com › physics › light-emitting-diodeLight Emitting Diode (LED) - BYJU'S

    A light-emitting diode (LED) is a semiconductor device that emits light when an electric current flows through it. When current passes through an LED, the electrons recombine with holes emitting light in the process.

  2. en.wikipedia.org › wiki › Light-emitting_diodeLight-emitting diode - Wikipedia

    A light-emitting diode ( LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons.

  3. www.electronicshub.org › light-emitting-diode-basicsLight Emitting Diode Basics | LED Types, Colors and Applications

    Jul 4, 2024 · Light Emitting Diode or simply LED is one of the most commonly used sources of light now-a-days. Whether it may be your car’s headlights (or daytime running lights) or your home’s living room lights, the applications of LEDs are countless. Unlike (almost) legacy filament bulbs, LEDs (and fluorescent bulbs) need a special circuit to make them work.

  4. www.electrical4u.com › led-or-light-emitting-diodeLight Emitting Diode (LED): What is it & How Does it Work?

    Feb 24, 2012 · A Light Emitting Diode (LED) is a special type of PN junction diode. The light emitting diode is specially doped and made of a special type of semiconductor. This diode can emit light when it is in the forward biased state.

  5. www.electronics-tutorials.ws › diode › diode_8Light Emitting Diode or the LED Tutorial - Basic Electronics...

    The light emitting diode is the most visible type of semiconductor diode. They emit a fairly narrow bandwidth of either visible light at different coloured wavelengths, invisible infra-red light for remote controls or laser type light when a forward current is passed through them.

  6. electronics.howstuffworks.com › ledHow Light Emitting Diodes Work | HowStuffWorks

    Light emitting diodes, commonly called LEDs, are real unsung heroes in the electronics world. They do many different jobs in all kinds of devices. They form numbers on digital clocks, transmit information from remote controls, light up watches and tell you when your appliances are turned on.

  7. learn.sparkfun.com › tutorials › light-emitting-diodes-Light-Emitting Diodes (LEDs) - SparkFun Learn

    LEDs (that's "ell-ee-dees") are a particular type of diode that convert electrical energy into light. In fact, LED stands for "Light Emitting Diode." (It does what it says on the tin!) And this is reflected in the similarity between the diode and LED schematic symbols:

  8. electronicsreference.com › module5 › light_emitting_diodeLight Emitting Diode (LED) - Electronics Reference

    Light emitting diodes, commonly referred to as LEDs, are a type of diode that emits light as electric current passes through it. Light emitting diodes are one of the most common circuit elements in electronic systems.

  9. eng.libretexts.org › Semiconductors › Light_Emitting_DiodesLight Emitting Diodes - Engineering LibreTexts

    Light Emitting Diodes (LEDs) are light sources made from semiconductor devices. LEDs are gradually becoming the most popular light sources used in households, cars, and public lighting. They are …

  10. www.britannica.com › technology › LEDLED | Definition, Light, & Facts | Britannica

    Jul 17, 2024 · An LED (light-emitting diode) is a semiconductor device that emits infrared or visible light when charged with an electric current.