SCC is a place where u can get free study material for academic & competitive exams like CTET,SSC,IIT,NDA,Medical exams etc,

Thursday, 18 February 2016

LIGHT EMITTING DIODE (LED), PRINCIPLE OF OPERATION

LIGHT EMITTING DIODE (LED)
An LED is a specially fabricated P-N junction diode that emits monochromatic light when it is forward biased.
LED is invented 1st  by “OLEG  LOSEV “in 1927.
First practical of visible spectrum (red) was developed in 1962 by “NICK HOLONYAK”. so He is called the FATHER of  LED.
In 1968 “Man Santo company” was the first organization to mass produce visible LEDs using GaAsp .

The lifetime of LEDs are 25000 to 100000 hours. But heat and current setting can extend or shorten this time.
 PRINCIPLE OF OPERATION
The operation of LED is based upon the phenomenon of electro luminance
When a P-n junction is f/w biased then free electrons cross the
N-region and recombine with holes existing in p-region .
free  electrons are in  C.b.  (high energy level) while holes  are in V.b.  ( low energy level).
As these electrons fall from higher energy to lower energy level  recombine with holes then these radiated energy in the form of heat and light
Led produces light while conducting current  through them so led are current driven devices.
LIGHT EMITTING DIODE (LED), PRINCIPLE OF OPERATION,
COLOR OF LED
The color of light emitting diode depends upon various factors such as 



To read complete topic click here ..........
LIGHT EMITTING DIODE (LED), PRINCIPLE OF OPERATION

Share on Google Plus Share on whatsapp

  78 comments:

  1. Very informative article, Which you have shared here about the light emitting diode. After reading your article I got very much information about the LED and It is very useful for us. If anyone looking for the Physics Tutor Online, teacherlookup is the best for you.

    ReplyDelete
  2. This is my first time i visit here and I found so many interesting stuff in your blog especially it's discussion, thank you. best led track lighting

    ReplyDelete
  3. Awesome dispatch! I am indeed getting apt to over this info, is truly neighborly my buddy. Likewise fantastic blog here among many of the costly info you acquire. Reserve up the beneficial process you are doing here. entryway chandeliers

    ReplyDelete
  4. You have done a good job with your knowledge that makes our work easy because you are providing such good information. Keep sharing this kind of knowledge with us. Buy Indoor Pendant Lights in Ireland

    ReplyDelete
  5. I really enjoyed reading this post, big fan. Keep up the good work andplease tell me when can you publish more articles or where can I read more on the subject? LED Strip light

    ReplyDelete
  6. The article was up to the point and described the information very effectively. Thanks to blog author for sharing an informative post. Plug and play T12 LED tubes

    ReplyDelete
  7. This article is an appealing wealth of informative data that is interesting and well-written. I commend your hard work on this and thank you for this information. You’ve got what it takes to get attention. electrician in Lawrenceville GA

    ReplyDelete
  8. Your article is very informative and I am impressed by the details of led light, that you have shared here in the post. Thank you for sharing the article with us.outdoor lighting new zealand

    ReplyDelete
  9. Think about some essential definitions regardless as a methods for understanding the job of an instructor. "Training" alludes to giving guidance; "teacher" alludes to the individual who gives guidance and is somebody who is gifted in educating; and instructing is lined up with giving clarifications. Hvordan-man.dk

    ReplyDelete
  10. Philosophy is the study of realities, pursuit of wisdom, and commentary on general principles of life. It is concerned with a search of eternal truth, both conceptual as well as practical. It has five areas of search - Epistemology, Metaphysics, Aesthetics, Ethics and History. The instrument used by philosophy to unearth realities or to discover truth is logic, both inductive as well deductive. Educational philosophy is a branch of general philosophy, it gains strength from epistemology. It formulates the aims and objectives or contents of education that, in turn, influence the whole learning environment, society, and future generations. english class for foreigner

    ReplyDelete
  11. Took me time to read all the comments, but I really enjoyed the article. It proved to be Very helpful to me and I am sure to all the commenters here! It’s always nice when you can not only be informed, but also entertained! Assignment answer Class 9

    ReplyDelete
  12. Philosophy is the study of realities, pursuit of wisdom, and commentary on general principles of life. It is concerned with a search of eternal truth, both conceptual as well as practical. It has five areas of search - Epistemology, Metaphysics, Aesthetics, Ethics and History. The instrument used by philosophy to unearth realities or to discover truth is logic, both inductive as well deductive. Educational philosophy is a branch of general philosophy, it gains strength from epistemology. It formulates the aims and objectives or contents of Class 7 Assignment 2021 that, in turn, influence the whole learning environment, society, and future generations.

    ReplyDelete
  13. I understand this column. I realize You put a many of struggle to found this story. I admire your process. 3rd week assignment 2021 answer

    ReplyDelete
  14. Much thanks to you for the redesign, extremely pleasant site.. Assignment Syllabus 2021

    ReplyDelete
  15. I am very thankful to you as the post you have shared here about lights is amazing. Through this post I got some helpful knowledge. Thanks for posting it.Solar Street Light. Keep posting.

    ReplyDelete
  16. Thank you very much for the information. We are very thankful to you. Check GST Primary Selection List

    ReplyDelete
  17. I’m not that much of a internet reader to be honest but your sites really nice, keep it up! I’ll go ahead and bookmark your website to come back later. All the best led module

    ReplyDelete
  18. Very good, This information is essential and informative which you have shared here. It is beneficial for beginners to develop their knowledge. It is very gainful information. Thanks for share it. Buy Double ended grow lights for plants online

    ReplyDelete
  19. This is exciting, nevertheless it is vital for you to visit this specific url: look at this now

    ReplyDelete
  20. Notwithstanding, by and large, side sleeper cushions that effectively scrunch up, in order to coordinate with the inclinations of the sleeper are generally liked. best led spotlights for garden

    ReplyDelete
  21. i was just browsing along and came upon your blog. just wanted to say good blog and this article really helped me. ankara ingilizce kursu

    ReplyDelete
  22. This comment has been removed by the author.

    ReplyDelete
  23. Nice post mate, keep up the great work, just shared this with my friendz waec runz

    ReplyDelete
  24. Clearly, It is an engaging article for us which you have provided here about led video panelThis is a great resource to enhance knowledge about it. Thank you.

    ReplyDelete
  25. Regular LEDs have been utilized for sign and show applications for a very long while. The inalienable advantages of LED innovation are notable and archived, Ladder LED,

    ReplyDelete
  26. In the interim, the organization additionally delivers laser gadgets and units, turning into a main venture of this innovation in China.hispeedlaser.com

    ReplyDelete
  27. I got some wonderful knowledge from this post. The post is very informative and helpful also. Thanks for sharing such a post. Keep it up. Outdoor Lighting

    ReplyDelete
  28. The article was up to the point and described the information about leather jackets. Thanks to blog author for wonderful and informative post.
    Samishleather

    ReplyDelete
  29. I am really happy to say it’s an interesting post to read . I learn new information from your article , you are doing a great job . Keep it up
    Regards : Spanish classes in Bangalore

    ReplyDelete
  30. During this post, you have shared fantastic content. This article provided me with some useful knowledge. Thank you for sharing that. Keep up the good work. led grow lights

    ReplyDelete
  31. I appreciate you sharing this blog post. Really looking forward to read more. Great.Help With Data Analysis For Dissertation

    ReplyDelete
  32. Exemplary blossoms turn out best for a nautical wedding. On the off chance that you have chosen a green and naval force shading range, the undeniable decision is green hydrangeas. They make excellent flower bundles, flawless function improvements, and staggering focal points - how awesome and simple is that? nautical lighting

    ReplyDelete
  33. After i obtain you to definitely this particular web page as well as realize getting helpful home elevators similar problems. mymathlab answers

    ReplyDelete
  34. And thus lot to happen more than types fantastic web site. Your website procures everybody a highly skilled trade linked to satisfying.. Salubrious lot close to the globe. mcgraw hill connect answers

    ReplyDelete
  35. Quite possibly the most helpful term through this helpful material which have been that comes with the on the internet... answers for math homework

    ReplyDelete
  36. I merely right now want to clarify that i had been clean in order to web page along with unquestionably favored your website web site. Most likely I’m regarding to locate your website. Individuals definitely consist of outstanding encounters. Greatest wants meant for providing around your website. Answers to aleks math problems

    ReplyDelete
  37. Our San Leandro Preschools in San Leandro California ​is the top choice for your child. The Principled Academy provides quality private education from Grade K to 8. Visit us soon!

    ReplyDelete
  38. Thank you so much as you have been willing to share information with us. We will forever admire all you have done here because you have made my work as easy as ABC. banda led

    ReplyDelete
  39. Your blog is very valuable which you have shared here about led uv curing for offset printing..... I appreciate your efforts which you have put into this article and also it is a gainful article for us. Thank you for sharing this article here.

    ReplyDelete
  40. Light producing diode or LED innovation is another sensation in business and private lighting applications.led module

    ReplyDelete
  41. You have given great content here. I am glad to discover this post as I found lots of valuable data in your article. Thanks for sharing an article like this. custom led signs outdoor

    ReplyDelete
  42. I can disclose to you direct that none of this compromise between a specialized curriculum and ordinary education has been simple. Nor do I see this pushing and pulling turning out to be simple at any point in the near future. top hyderabad pre school

    ReplyDelete
  43. Hare, we provide online free course udemy free course udemy coupons, and free online classes

    Free Courses Website

    ReplyDelete
  44. I like your post. It is good to see you verbalize from the heart and clarity on this important subject can be easily observed... cause and effect examples sentences

    ReplyDelete
  45. I always check this type of advisory post and I found your article which is related to my interest. This is a great way to increase knowledge for us. Thanks for sharing an article like this. Smart Street Lights Centralized Ccms System in India

    ReplyDelete
  46. Superbly written article, if only all bloggers offered the same content as you, the internet would be a far better place.. Study BA and BBA Double Degree Program from Thompson Rivers University, Canada

    ReplyDelete
  47. Thank you for helping people get the information they need. Great stuff as usual. Keep up the great work!!! Barn light pendants

    ReplyDelete
  48. This comment has been removed by the author.

    ReplyDelete
  49. Nice post. I'm impressed by this blog about Indoor Lighting Online Shop in Uae. There is so much information about this topic. Thanks for sharing an amazing article like this. please keep posting.

    ReplyDelete
  50. Orthopédagogue d'expérience, notre expertise prévient et remédie aux difficultés d’apprentissage liées à la dyslexie-dysorthographie, à la dyscalculie, au TDAH et encore aux difficultés en lecture. difficultés d'apprentissage

    ReplyDelete
  51. I genuinely enjoyed this post. We (as a community), appreciate it. I have a related blog on this topic. Do you mind if I link to this post on my site? have a peek at this web-site

    ReplyDelete
  52. Thank you because you have been willing to share information with us. we will always appreciate all you have done here because I know you are very concerned with our. Modern chandelier led

    ReplyDelete
  53. Blue light emitted from these devices was the cause.Victorian chandeliers

    ReplyDelete
  54. Probably it's the numerous fantasies, some began by the light producers themselves, which have given LED develop lights such a terrible standing with indoor grounds-keepers. Maybe many LED lighting producers don't really develop with their lights: large bamboo pendant light

    ReplyDelete
  55. A broad range of careers and training options are available to students that pursue a degree in teacher Online Assignment Help Houston . Depending on career goals students can enter numerous online schools that offer education training. Undergraduate and graduate degree programs are available based on what age group students want to teach.

    ReplyDelete
  56. Wow, fantastic weblog layout! How lengthy have you been blogging for? you made blogging glance easy. The full glance of your website is excellent, neatly as the content material! get more details

    ReplyDelete
  57. It is really a helpful blog to find some different source to add my knowledge. New York Signage

    ReplyDelete
  58. On the off chance that you get a Defect Notice from the ESA, relax. The specialists will give you a time period to address the electrical imperfection. However, it is vital to recollect that amending the deformity isn't a DIY work.AWS Roofing

    ReplyDelete
  59. Agenda Digital Infantil Agenda Todo-En-Uno. 100% Personalizable. 0% Complicada. Solicita Prueba Gratuita ¿Qué aportará MIA Plus a tu Escuela Infantil? Complicidad con los Padres Sabemos que educas y cuidas fenomenal de sus peques... ¡demuéstraselo con MIA Plus en un par de clicks! Ahorro de Tiempo... y Dinero Educadoras y Directora haréis las tareas de la agenda electronica escuela infantil

    ReplyDelete
  60. Continuously remember that the best web-based electrical expert administrations are the ones, which have a standing of resolving issues inside the specified time span. electricians in baltimore city

    ReplyDelete
  61. It is far better consequently great in combination with constant recommendations, which implies find: Admission online

    ReplyDelete
  62. Driven represents Light Emitting Diodes. These diodes are little in size and utilized in various numbers to emanate light.visit website
    this website

    ReplyDelete
  63. Admiring the time and effort you put into your blog and detailed information you offer!.. led strips lights

    ReplyDelete
  64. Advantages mostly chief remarkable subjects -- you possibly can have an understanding of all the ingredients for: AIOU

    ReplyDelete
  65. If you love trying new and different things, modern furniture will surely fascinate you. led furniture

    ReplyDelete
  66. Great article with excellent idea! Thank you for such a valuable article. I really appreciate for this great information. Neon Wall Light

    ReplyDelete
  67. A very delightful article that you have shared here.glass lamp shades Your blog is a valuable and engaging article for us, and also I will share it with my companions who need this info. Thankful to you for sharing an article like this.

    ReplyDelete
  68. Tiras de luces LED al por mayor, Neon LED Flex y Custom Neon Sign, también pueden proporcionar soluciones profesionales de luces LED inteligentes. Tira de LED de alto CRI

    ReplyDelete
  69. Superbly written article, if only all bloggers offered the same content as you, the internet would be a far better place.. fbisd skyward

    ReplyDelete
  70. https://sites.google.com/site/ytviewsindiabuy/ Do you buy your games second-hand? Then you are a complete cheapskate and the scum of the gaming industry. You're worse than any pirate sailing the high seas of warez.

    ReplyDelete
  71. https://twitchviral.com/ Making a living by playing video games would have been considered to be a ridiculous and unrealistic career option just a few decades ago. However, the popularity of video games across the globe has made video game testing a viable career option. In fact, there are already a lot of people in the world who are making tons of cash doing what they know best and love the most; playing video games.

    ReplyDelete
  72. Generally one variety LED lights are utilized in car and traffic light markers. outdoor hanging ball lights

    ReplyDelete
  73. This is a very interesting post for New York LED Luminaries . Your information is very important to me. Thanks for sharing.

    ReplyDelete
  74. If you want to add a lot of style, grace and elegance to a room, a beautiful chandelier can be the perfect lighting option. Entryway chandelier

    ReplyDelete
  75. You have given great content here.Digital signage rental Singapore I am glad to discover this post as I found lots of valuable data in your article. Thanks for sharing an article like this.

    ReplyDelete
  76. Very well written article. It was an awesome article to read. about solar panel maintenance and repair service martin county Complete rich content and fully informative. I totally Loved it.

    ReplyDelete
  77. thank you for taking the length to discuss this, I vibes strongly that adoration and admittance greater in perform to this difficulty. If practicable, which include earnings know-how, could you thoughts updating your weblog lower back subsidiary opinion? it’s miles enormously useful for me. Eternals Kingo Bomber Jacket

    ReplyDelete
  78. If you are traveling, a data SIM card can be a great way to stay connected. Many data SIM cards offer international roaming, which means that you can use your data allowance in other countries. This can be a great way to stay connected while you are traveling, and it can also help you to avoid costly roaming charges. International Data eSIM card

    ReplyDelete

Download app for android

Download app for android

Search

Popular Posts

Facebook

Blogger Tips and TricksLatest Tips For BloggersBlogger Tricks
SCC Education © 2017. Powered by Blogger.

Total Pageviews