Examcrazy Logo
HOME  SITEMAP CONTACT US LOGIN
HOME Engineering AIEEE GATE IES DRDO-SET BSNL-JTO
MBA in India CAT How to Prepare for Exams Technical Freshers Jobs
  Follow us|  twitter  Orkut  facebook
Diode Tutorials
   Ideal Diodes
   Applications of Diodes
   Physical Operation of Diodes
   DC Analysis of Diode Circuits
   Small-Signal Diode Model and Its Application
   Zener Diodes
   Diode Rectifier Circuits (Half Cycle, Full Cycle, and Bridge)
   Peak Rectifiers
   Limiting and Clamping Diode Circuits. Voltage Doubler. Special Diode Types
Free Electronics Tutorials
   Diode Tutorials
   BJT Tutorials
   MOSFET Tutorials
   Electronics II Tutorials
   Applied Electromagnetics Tutorials
   Microwave Tutorials
GATE preparation tips
   GATE Books & How to prepare
   Objective Solving Tricks
   Other GATE links
   IES exam preparation
   All about DRDO-SET
More Engineering Links
   Directory of coaching Institutes
   Govt engg college rankings
   Private engg college rankings
   Admission notifications for Mtech/PhD
   All Engineering Colleges in India
Ideal Diode - Electronics & Communication tutorials

Ideal Diode
Up to this point in your career as an ECE student, you’ve been studying linear electrical components. For example, resistors (R), inductors (L), and capacitors (C) are ideally linear elements (and passive, of course).
Linear Circuit Elements
What do we mean that a component is "linear"? To answer this question, recall there are just two independent qualities of electricity in electrical circuits. These are voltage and current.
A linear circuit element is one that linearly relates the voltage across that element to the current through the element.
Linearity has a precise mathematical statement. If a quantity y is a function of another quantity x, as
y= f( x) (1)
Then y is linearly dependent on x if
my= f( mx) (2)

where m is a constant. In other words, f is a linear function if when quantity x is multiplied by some constant m results in the function simply being multiplied by m.



Here are a couple of examples of linear components in electrical circuits:


This is perhaps a bit tricker, but notice that differentiation is a linear operator: if v increases by a factor m then i does as well.

Ideal Diodes

You will now learn about a new electrical circuit element, the diode. Diodes are made from two different types of semiconducting materials that come together to form a "junction":


The circuit symbol is

which is related to the physical markings on a typical diode as


In stark contrast to resistors, inductors, and capacitors, the diode is a nonlinear element. For an ideal diode, the i-v characteristic curve is


It is apparent from this i-v characteristic curve that there are two distinct regions of operation of the ideal diode:


The ideal diode acts as an electronic "valve" allowing current in only one direction through the diode: in the direction of the arrow in the circuit symbol.
We will find this "valve" behavior very useful in some situations. For example, this is useful to prevent damage to an electronic device when the battery is inserted backwards, for example.

Next - Applications of Diodes

Discuss about DIODE here
   START NEW THREADS
Discussion Board for DIODE
You can discuss all your issues on DIODE here
Thread / Thread Starter Last Post Replies Views
Type of diode
I need short notes for all type of diode.


Posted By :-
 imteyaz86
Oct 27, 11:50:24 AM 0 9644
signals and system
hi i am venkatesh which author use in signal and system for gate


Posted By :-
 venkatesh.dace2
Oct 13, 4:38:08 PM 0 9207
Thank u
i need some links to download free ebooks multiple choice for my gate preparation - V.Vivek Sharma.


Posted By :-
 vvivekxp@yahoo.com
Oct 4, 9:56:42 AM 0 7056
study materials
i want to study materials of digital communication.


Posted By :-
 titon
Feb 6, 3:43:05 PM 4 18446
More examples of non linear circuit analysis
Notes are very simple to understand the concepts.


Posted By :-
 ruby2810
Sep 9, 3:17:49 PM 0 12797
study materials
can i get some study materials by online


Posted By :-
 shyama.km
Sep 4, 9:05:49 AM 0 9067
hiii plz give me basic information about electromegnetics
i have a dout between combination of electrostatics and megnetostatics


Posted By :-
 pandya.saga
Jul 29, 2:38:13 PM 0 7507
hi
pls send me a link on answered problems on electronic devices and circuit theory by boylestad and nashelsky.. ty


Posted By :-
 flux089
Jul 25, 11:21:28 PM 0 8645
electronics and communication
i am in 4th year


Posted By :-
 gauravjai24.ece.uit@gmail.com
Jun 10, 6:02:44 AM 0 7592
bjt
about bipolar device


Posted By :-
 vikashgupta160489
Feb 13, 2:11:36 PM 2 14615
h parameters of transister
i want h parameters of transister


Posted By :-
 vijaybaviskar007
Feb 11, 7:52:45 AM 3 21149
very good tutorials
the explanations r very easy to understand


Posted By :-
 blues2torn@rediffmail.com
Dec 7, 8:38:09 PM 0 7846
ECE
the explanation was nice...more of these explanations on other topics would be of much help and is expected urgently...


Posted By :-
 pallavi.sist@gmail.com
Dec 2, 10:32:29 PM 0 8464
e.d.c
i want to simple way abt all the diode n jfet


Posted By :-
 vijayjyani@gmail.com
Jun 4, 10:25:28 AM 1 11384
Thanks for nice tutorials
Thanks for nice tutorials


Posted By :-
 my.gateprep
Nov 26, 8:29:06 AM 0 8023

To start your new thread you must login here.
New user signup at ExamCrazy.com Exam Crazy
To reply/post a comment you need to login, Use your user name and password to login if you are already registered else register here

EXISTING USER LOGIN
(Members Login)
Username:
Password:
NEW USER REGISTERATION FORM
Login-Id
Email-ID
Password
Confirm-Password
Full-Name

  About us | Privacy Policy | Terms and Conditions | Contact us | Email: support@Examcrazy.com  
Copyright © 2014 Extreme Testing House, India. All rights reserved.  2876