Electronics Enthusiasts
Follower of APJ Abdul Kalam sir 
Since 2018 in unacademy

Venkata Gopinath

This course is all about BJT amplifier,BJT small signal analysis, Oscillators,operational amplifiers

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Analog Electronics- BJT: GATE (ECE)

Transistors

Electronic Devices

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Introduction to analog elections.which lessons and topic will be covered in this course  are explained  in this video.

Introduction

Basic operation of BJT and current flow in an NPN transistor

Lesson 1.1:Basic Operation of BJT

BJT configuration: common base, common emitter and common collector

1.2:BJT Configurations

Requirement for biasing :what factors are to be considered before biasing are explained in this Video

1.3:Requirement for Biasing

Fixed bias circuit: analysis of fixed bias circuit and how stable the operating point , stability factor .

1.4:Fixed Bias Circuit

Collector to base bisa circuit: calculation of Q-point, Q-point stability and stability factor.

1.5:Collector to base bias circuit

Fixed bias with emitter resistance /emitter bias :Q-point establishment,Q-point stabilization and stability factor .

1.6:Emitter bias/Fixed bias with emitter resistor

Voltage divider bias circuit: Circuit diagram,Q-point establishment,Q-point stability and stability factor .

1.7:Voltage divider / self bias circuit

Introduction: Amplifier circuit,role of capacitors in amplifier circuit .

Lesson 2.1: Introduction

H-parameters : how BJT a device is converted into electrical circuit?? Explanation of h-paramerts and their  derivation .

2.2:H- parameters

Calculation of input resistance ,output resistance ,voltage gain and current gain of small signal model of amplifier .

2.3:Analysis of small signal model of amplifier

Calculation of voltage gain,current gain ,input resistance ,output resistance when source resistance is considered .

2.4:Effect of source internal resistance

Common base amplifier circuit analysis:load resistance,voltage gain ,current gain,input and output resistance , conversation of h -parameters for common base .

2.5:common base amplifier

Common emitter amplifier :calculation of input & output resistance ,voltage gain and current gain, h-parameter values for CE .

2.6: common emitter amplifier

Common collector amplifier: calculation of input and output resistance ,voltage gain ,current gain and h-parameter conversion formula for cc amplifier .

2.7:common collector amplifier

Why biasing ???

Why we have to approximate h-parameters are explained in this video .

2.8:Approximation of h-parameter model

Summary of common base ,common emitter , common collector amplifiers .

2.9:Summary

Frequency response graph of BJT amplifier and factors effecting gain at different frequencies .

Lesson 3.1: Introduction

How emitter bypass capacitor is effecting the gain of CE amplifier at low frequency region is explained in this video .

3.2:Effect of emitter bypass capacitor at low frequency

How coupling capacitors are effecting the gain of CE amplifier at low frequency region is explained in this video.

3.3:Effect of coupling capacitors at low frequency region

Pi model of BJT is explained in this video .

3.4:pi model of BJT

Equations for PI model elements in terms of h-parameters are explained in this video .

3.5:PI model elements in terms of h-parameters

Miller's theorem for voltage and Miller's theorem for current are explained in this video .

3.6:Millers Theorem

Calculation of current gain for CE amplifier by shorting load resistance is explained in this video .

3.7:CE short circuit current gain

Calculation of current gain at high frequency in presence of load resistance is explained in this video .

3.8:CE current gain with load resistance

Lesson 4.1: Introduction

Calculation of loop gain for RC phase shift oscillator .

4.2:RC phase shift oscillator part-1

Calculation of frequency of oscillations and equation for sustaining oscillations .

4.2:RC phase shift oscillator part-2

4.3:Wein bridge oscillator

4.4:LC oscillator part -1

4.4:LC oscillator part-2

4.4:HARTLY Oscillator

4.4:COLPITTS Oscillator

Crystal oscillator's: circuit diagram,modes of operation

4.5:Crystal oscillator

Currently serving The Nation as IES Officer. Worked in BEL, ONGC and went to IIT Roorkee for M.Tech. I love reading, traveling and Cricket. 

Vipin Kumar

This course explains optical behaviour of Semiconductor,optical devices,display Devices, Lasers

(Hindi) Optoelectronics - ESE - E and T Engineering

#Gate Ranker # Mtech from JEC Jabalpur. use code " MACHINE20" to attend my Classes. I don't teach "I simply explain the topic."

Ravendra Yadav

In this course we will be discussing about the questions asked in 2016 ESE in E & T Engineering in Electronic Devices and circuits.

(Hindi) 2016 ESE Questions asked in Electronic Devices and Circuits

A Chartered Electronics & Communication Engineer, pursuing Master's in Technology;
also inclined towards Reading and Writing. A Human Rights

Akshita Pal

In this Course, Akshita attempts to explain certain key features of the Field Effect Transistors (JFETs and MOSFETs), in a compact manner to make these concepts simpler to understand.

(Hindi) An Overview Of Field Effect Transistors

A 3nd Year B. Tech student. District ranker in class 10th boards , school ranker in class 12th boards. Jee qualified. Best ranks in WBJEE.

Gaurav Kumar

In this course we will discuss all biasing methods of BIPOLAR JUNCTION TRANSISTORS. We will also see the calculation of stability for Q points. These derivations are very important.

(Hindi) BJT Biasing Circuits : GATE (ECE)

In this course, Akshita encapsulates the concepts behind majority of Microwave Devices and Integrated Circuits, in a manner that makes the understanding and learning of the subject easier.

(Hindi) Microwave Devices and Integrated Circuits

1000+ GATE lectures•University Syllabus Coverage•M.tech, B.tech (ECE), Former automation engineer•Jony Ive Award’18, Top Educator’17

Jigyasa Singh

The weightage of Digital Electronics in GATE is 8-12 marks. Hence, Jigyasa is presenting a a course to cover an important topic of this subject i.e. IC fabrication process. She takes you through led, solar cell, photolithography, etching, gate questions and much more.

Lessons

35 lessons • 5h 41m

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Introduction

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Lesson 1.1:Basic Operation of BJT

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1.2:BJT Configurations

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1.3:Requirement for Biasing

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1.4:Fixed Bias Circuit

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1.5:Collector to base bias circuit

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1.6:Emitter bias/Fixed bias with emitter resistor

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1.7:Voltage divider / self bias circuit

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Lesson 2.1: Introduction

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2.2:H- parameters

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