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Robo India
http://roboindia.com
What is an LED ?
• What is an LED ?
• LED stands for Light Emitting Diode
• It is a semiconductor light source
• Mostly it is used for indication
• LED have TWO legs normally known as
Anode and Cathode.
If you have forgotten
• ANODE is +ve terminal (Long leg)
• CATHODE is –ve terminal (Small Leg)
Click here to visit -ROBO INDIA
Click here to visit -ROBO INDIA
Click here to visit -ROBO INDIA
Click here to visit -ROBO INDIA
As name suggest LED is also a diode and
when it is forward biased then electrons
are able to recombine with holes in
device, as a result it release energy in
form of photons
Phenomena – Electroluminescence
Color – Depend on energy of photon
Click here to visit -ROBO INDIA
Click here to visit -ROBO INDIA
In case of queries please write us-
info@roboindia.com
www.roboindia.com
Click here to visit -ROBO INDIA

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Led Theory and Working Principles

  • 2. What is an LED ?
  • 3. • What is an LED ? • LED stands for Light Emitting Diode • It is a semiconductor light source • Mostly it is used for indication
  • 4. • LED have TWO legs normally known as Anode and Cathode. If you have forgotten • ANODE is +ve terminal (Long leg) • CATHODE is –ve terminal (Small Leg) Click here to visit -ROBO INDIA
  • 5. Click here to visit -ROBO INDIA
  • 6. Click here to visit -ROBO INDIA
  • 7. Click here to visit -ROBO INDIA
  • 8. As name suggest LED is also a diode and when it is forward biased then electrons are able to recombine with holes in device, as a result it release energy in form of photons Phenomena – Electroluminescence Color – Depend on energy of photon Click here to visit -ROBO INDIA
  • 9. Click here to visit -ROBO INDIA
  • 10. In case of queries please write us- info@roboindia.com www.roboindia.com Click here to visit -ROBO INDIA