Electronics | Engineering Notes India

Transistor: Intro, Operation, Current Amplification, Leakage and Characteristics

In this article we will discuss about:- 1. Introduction to Junction Transistor 2. Operation of a Transistor 3. Current Amplification Factors 4. Transistor Leakage Currents 5. Characteristics. Contents: Introduction to Junction Transistor Operation of a Transistor Current Amplification Factors of a Transistor Transistor Leakage Currents Characteristics of Transistor 1. Introduction to Junction Transistor: The junction transistor consists of a silicon [...]

By R Chaurasiya|2018-05-16T06:23:21+05:30May 16, 2018|Transistors|Comments Off

Semiconductors: Types, Properties, Preparation, P-N Junction and Breakdown Mechanisms

In this article we will discuss about:- 1. Types of Semiconductors 2. Properties of Important Semiconductors 3. Preparation of Semiconductor Materials 4. Preparation of P-N Junctions Semiconductor Diode 5. Open-Circuited P-N Junction Semiconductor Diode 6. Forward Bias Arrangement 7. Reverse Bias Arrangement 8. Characteristics 9. Static and Dynamic Resistance 10. Breakdown Mechanisms. Contents: Types of Semiconductors Properties of Important Semiconductors [...]

By R Chaurasiya|2018-05-16T06:23:21+05:30May 16, 2018|Semiconductors|Comments Off

Oscillator: Meaning, Types, Conditions, Oscillatory Circuit and Frequency

In this article we will discuss about:- 1. Meaning of Oscillator 2. Types of Oscillators 3. Conditions for Oscillation 4. Fundamental Oscillatory Circuit 5. Frequency Stability. Contents: Meaning of Oscillator Types of Oscillators Conditions for Oscillation Fundamental Oscillatory Circuit Frequency Stability in Oscillator 1. Meaning of Oscillator: An oscillator may be defined as an active device that generates sinusoidal or [...]

By R Chaurasiya|2018-05-16T06:23:21+05:30May 16, 2018|Oscillator|Comments Off

Differential Amplifier and Its Theory (With Circuit Diagrams) | Electronics

The differential amplifier, abbreviated as DIFF AMP, is the basic stage of an integrated OP AMP with differential input. Its design is, therefore, mainly related to IC fabrication techniques. However, employing discrete components it is also used in some circuits. Generally, the function of a differential amplifier is to amplify the difference of two signals. Fig. 4.7(a) shows a linear [...]

By R Chaurasiya|2018-05-16T06:23:20+05:30May 16, 2018|Differential Amplifier|Comments Off

Combinational and Sequential Circuits (With Functions) | Electronics

In this article we will discuss about combinational and sequential circuits and their functions. Introduction to Combinational and Sequential Circuits: A digital system must store binary numbers in addition to performing logic. To take care of this requirement, a memory cell, called a FLIP-FLOP, is introduced. Theoretically any digital system can be constructed entirely from NAND gates and FLIP-FLOPs. These [...]

By R Chaurasiya|2018-05-16T06:23:20+05:30May 16, 2018|Circuits|Comments Off

Optical Fibres: Fabrication, Types and Optical Guide| Electronics | Engineering

In this article we will discuss about:- 1. Fabrication of Optical Fibres 2. Types of Optical Fibres 3. Formation of Light Guide or Optical Guide. Fabrication of Optical Fibres: Fibres used for communication are constructed from material systems which must satisfy the following requirements: i. The dielectric materials used must have low loss (<10 dB/km) in the infrared region of [...]

By R Chaurasiya|2018-05-16T06:23:20+05:30May 16, 2018|Optical Fibres|Comments Off

Modulation and Demodulation of Signals | Electronics | Engineering

In this article we will discuss about:- 1. Introduction to Modulation 2. Types of Modulation 3. Analysis 4. Sidebands and Energy Consideration 5. Modulators 6. Types of Detection 7. Analysis of Amplitude and Frequency Modulation 8. Generation of FM Wave 9. Classification of FM Detectors 10. Classification of Radio Transmitters 11. Types of Receivers. Contents: Introduction to Modulation Types of [...]

By R Chaurasiya|2018-05-16T06:23:20+05:30May 16, 2018|Modulation|Comments Off

Cathode-Ray Oscillograph: Introduction, Construction of CR Tube and Power Supply

In this article we will discuss about:- 1. Introduction to C-R Oscillograph 2. Construction of CR Tube Used in C-R Oscillograph 3. Power Supply 4. Time Base or Sweep Circuits 5. Frequency and Phase Measurements. Contents: Introduction to C-R Oscillograph Construction of CR Tube Used in C-R Oscillograph Power Supply for C-R Oscillograph Time Base or Sweep Circuits Used in [...]

By R Chaurasiya|2018-05-16T06:23:20+05:30May 16, 2018|Cathode-Ray Oscillograph|Comments Off

Television and Artificial Satellite (With Block Diagram) | Electronics

Throughout the history of human civilization, man has contrived in different ways to extend his sense of sight. The microscope, the telescope and the camera were important landmarks along the way. These inventions were based upon an important characteristic of the human eye known as 'persistence of vision'. Television is one of those miracles which enables us to view a [...]

By R Chaurasiya|2018-05-16T06:23:19+05:30May 16, 2018|Artificial Satellite|Comments Off

Experiments on Semiconductor Devices | Electronics | Engineering

Compilation of experiments on ‘Semiconductor Devices’ for engineering students. Experiment # 1. Characteristics of a Zener Diode: To draw the characteristics of a zener diode and study of its use as a voltage regulator. Circuit Diagram: The basic principle of the circuit diagrams for studying the characteristics of a Zener diode under forward bias and reverse bias arrangement are shown [...]

By R Chaurasiya|2018-05-16T06:23:19+05:30May 16, 2018|Semiconductor Devices|Comments Off

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