Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Led Theory and Working Principles

1,009 views

Published on

This presentation of Robo India is explaining the concept, theory and working principles of LED (Light Emitting Diode)
It also explain how to use them.

We welcome your views and queries, we are found at-
website:http://roboindia.com
mail: info@roboindia.com

Published in: Engineering
  • Be the first to comment

Led Theory and Working Principles

  1. 1. Robo India http://roboindia.com
  2. 2. What is an LED ?
  3. 3. • What is an LED ? • LED stands for Light Emitting Diode • It is a semiconductor light source • Mostly it is used for indication
  4. 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. 5. Click here to visit -ROBO INDIA
  6. 6. Click here to visit -ROBO INDIA
  7. 7. Click here to visit -ROBO INDIA
  8. 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. 9. Click here to visit -ROBO INDIA
  10. 10. In case of queries please write us- info@roboindia.com www.roboindia.com Click here to visit -ROBO INDIA

×