Prof. Dattaraj Vidyasagar

Author on this website. He is veteran of Core Electronics since last 36+ years. ATL Mentor of Change, Niti Ayog, Govt. of India, Google Certified Educator, International Robotics Trainer and author of 18 books on electronics, robotics, programming languages and web designing... ➤➤

Articles: 172
Comments: 32

Rectifier Circuits: HWR, FWR & BR

Learn the Basics First!

Prof. Dattaraj Vidyasagar
February 17, 2022
January 1, 2024

A rectifier circuit converts AC into DC. It uses diodes for this conversion, because the diode passes current only in one direction. There are three types of rectifier circuits, HWR, FWR and BR.

Comparative Analysis of Energy Level Diagrams

Learn the Basics First!

Prof. Dattaraj Vidyasagar
February 17, 2022
January 1, 2024

The PN junction diode conducts only in one direction. So it is known as unidirectional current device. Before going to understand the energy level diagrams, please read construction and biasing of diode.

How to find out the anode & cathode of a diode using a multimeter?

Learn the Basics First!

Prof. Dattaraj Vidyasagar
February 17, 2022
January 1, 2024

Diodes are very cheap in cost, so it is a general thing that every electronic hobbyist has large number of diodes in his/her stock. When you pick up a diode from your stock, sometimes the cathode marking band on the body of diode, may be wiped out, so its difficult to find our the anode and cathode just by looking at it.

What is Forward & Reverse Biasing of PN Junction?

Learn the Basics First!

Prof. Dattaraj Vidyasagar
February 17, 2022
January 1, 2024

When the external voltage applied to the PN junction is in such a direction that it cancels the potential barrier, thus permitting current flow, is called as forward biasing.

Construction of PN junction diode

Learn the Basics First!

Prof. Dattaraj Vidyasagar
February 17, 2022
January 1, 2024

A PN junction diode is the first semiconductor device in semiconductor family. It is also known as unidirectional current device, because it allows current only in one direction through it.

What is Extrinsic Semiconductor?

Learn the Basics First!

Prof. Dattaraj Vidyasagar
February 17, 2022
January 1, 2024

The devices like diodes, transistors, ICs used in electronic circuits are manufactured with the help of extrinsic semiconductor. When a trivalent or pentavalent element is mixed with pure Silicon crystal (i.e. intrinsic semiconductor), the new material is formed known as extrinsic semiconductor.

What is Intrinsic Semiconductor?

Learn the Basics First!

Prof. Dattaraj Vidyasagar
February 17, 2022
January 1, 2024

The pure crystal of semiconductor (Si or Ge) is known as intrinsic semiconductor at room temperature. The Silicon atom has 14 electrons revolving around its nucleus. In first orbit it contains 2 electrons, in second orbit 8 electrons i.e. 4 electrons in last orbit, known as valence electrons.

What is Conductor, insulator & semiconductor?

Learn the Basics First!

Prof. Dattaraj Vidyasagar
February 17, 2022
January 1, 2024

Some substances like Germanium, Silicon, Carbon, etc. are neither good conductors like copper nor insulators like glass. The resistivity of these materials lies in between conductors and insulators. Such substances are known as semiconductors.

Protected: Day-1: Online Course on Arduino Programing with Practicals

Arduino Tips & Tricks

Prof. Dattaraj Vidyasagar
January 25, 2022
March 29, 2024
10 Comments

There is no excerpt because this is a protected post.

Protected: Day-2: Online Course on Arduino Programing with Practicals

Arduino Tips & Tricks

Prof. Dattaraj Vidyasagar
January 25, 2022
March 29, 2024
7 Comments

There is no excerpt because this is a protected post.

Protected: Day-3: Online Course on Arduino Programing with Practicals

Arduino Tips & Tricks

Prof. Dattaraj Vidyasagar
January 25, 2022
March 29, 2024

There is no excerpt because this is a protected post.

Learn Online 12th Electronics Practical Experiments

All about 12th Electronics

Prof. Dattaraj Vidyasagar
January 25, 2022
January 3, 2024

In this series of video demos you will be able to learn online 12th electronics practical experiments prescribed by the HSC Board for annual practical examination.

Day-1: How to Create your Own Beautiful Websites

Self Paced Courses

Prof. Dattaraj Vidyasagar
January 21, 2022
January 2, 2024
1 Comment

Learn the art of designing beautiful website in absurdly simple steps. After 3 days you will be confident. Show off yourself on the world wide web.

Day-2: How to Create your Own Beautiful Websites

Self Paced Courses

Prof. Dattaraj Vidyasagar
January 21, 2022
January 2, 2024

Learn the art of designing beautiful website in absurdly simple steps. After 3 days you will be confident. Show off yourself on the world wide web.

Day-3: How to Create your Own Beautiful Websites

Self Paced Courses

Prof. Dattaraj Vidyasagar
January 21, 2022
January 2, 2024

Learn the art of designing beautiful website in absurdly simple steps. After 3 days you will be confident. Show off yourself on the world wide web.

Basic ‘C’ Language Course for Beginners (Day-1)

Self Paced Courses

Prof. Dattaraj Vidyasagar
January 21, 2022
January 2, 2024

The perfect short term course of C Language. In this course you will learn everything about C language within a very short time of just 3 days.

Basic ‘C’ Language Course for Beginners (Day-2)

Self Paced Courses

Prof. Dattaraj Vidyasagar
January 21, 2022
January 2, 2024

The perfect short term course of C Language. In this course you will learn everything about C language within a very short time of just 3 days.

Basic ‘C’ Language Course for Beginners (Day-3)

Self Paced Courses

Prof. Dattaraj Vidyasagar
January 21, 2022
January 2, 2024
1 Comment

The perfect short term course of C Language. In this course you will learn everything about C language within a very short time of just 3 days.

DAY 1: Microsoft Excel Basic Workshop

Self Paced Courses

Prof. Dattaraj Vidyasagar
January 16, 2022
January 2, 2024

Learn everything about Microsoft Excel. File tab ,How to Create New Excel Sheet, Home tab, Alignments, Wrap, Text Merge, insert & delete rows, columns, Sort and Filter, Find and Replace, Insert tab , Page-Layout Tab, Margins, Orientation, extra tips and tricks.
To learn this course, contact us to get the password of this course.

DAY 2: Microsoft Excel Basic Workshop

Self Paced Courses