安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- Light-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
- LED Definition Meaning - Merriam-Webster
Lead is both a noun and a verb, as most people know There are several unrelated nouns spelled lead: one most commonly refers to a metal (as in, "The paint was made with lead"), and the other most commonly refers to a position of advantage (as in, "Our team was in the lead")
- LED | Definition, Light, Facts | Britannica
LED, in electronics, a semiconductor device that emits infrared or visible light when charged with an electric current LED displays began to be used for consumer electronic devices starting in 1968, when Hewlett-Packard (HP) introduced the first LED display
- Light Emitting Diode (LED): What is it How Does it Work?
LED Definition: A Light Emitting Diode (LED) is a semiconductor device that emits light when electric current flows through it Working Principle of LED: The working principle of LED involves applying a forward bias current, which causes electrons and holes to recombine at the junction, producing light
- How 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
- Light Emitting Diode: How LEDs Work, How to Use LEDs - Starting Electronics
The LED modules or strips are designed to divide the 12V supply voltage across multiple LEDs Mains-Powered LED Lighting: LEDs used in AC mains-powered lamps or bulbs include built-in LED drivers that convert high-voltage AC (e g , 230V or 120V) to a suitable low-voltage DC output These drivers often incorporate:
- What is LED? - BYJUS
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
- LED - Light Emitting Diode: Basics, Types and Characteristics
As mentioned in the introduction, an LED is a semiconductor light source It consists of a PN Junction Diode and when voltage is applied to the LED, electrons and holes recombine in the PN Junction and release energy in the form of light (Photons)
|
|
|