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LED or Light Emitting Diodes: Definitive Basic Guide

Ever seen small bulbs probably in size of a millimeter that we mostly use in decorating our house, shop, etc in Christmas, New Year, Diwali, or any other occasion? They are LED Bulbs. Though very tiny but they glow brightly in the dark. Some of them just glow constantly, and some of them switch their state On/Off and vice-versa. I hope you have got an idea of what we are going to discuss in this article. If not, see the image below for better understanding. Yes, we are going to learn about Light Emitting diodes and LED lights their working, …

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Gunn Diode Explaination

What is a Gunn diode A Gunn Diode is a microwave semiconductor diode designed to work in devices having microwave frequencies. Microwave Frequencies are electromagnetic radiation of tremendously high frequencies (THF), (maximum working frequency up to 3 THz, this depends on the material used in its structure). The most common materials used in their manufacturing process are GaAs (Gallium Arsenide), and GaN (Gallium Nitride). In that process, microwave diodes require a unique environment (from lead due to sensitivity to electromagnetic pulses). The symbol of this diode is as shown below: Gunn diodes have short switching times due to their design. …

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Class A Power Amplifier Theory, Efficiency equation, Advantages and Disadvantages

Class A amplifier is one of the simplest types of power amplifiers. It has high fidelity and totally immune to crossover distortion. In the standard common emitter circuit configuration, the class-A amplifier uses the switching transistor. In our previous article, we have explained the amplifiers theory, power amplifier circuit, diodes, rectifiers in detail. Here we are going to explain the efficiency equation, advantages, and disadvantages of class A amplifier in detail. Class A power Amplifier Theory: Class A amplifier configuration is the simplest of all the power amplifier configuration because there is no switch off distortion to the output waveform even …

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Power Amplifier Circuit, Classes and its Characteristics

A Power amplifier is a type of amplifier used to increase the amplitude of the signal and makes it stronger than the given input signal. It is the most demandable electronic device in the eyes of professionals because it comes in various forms and used in several circuits. The main operating characteristics of an ideal amplifier is power output, signal gain, efficiency, and linearity but normally there is always remain some trade-off between these characteristics. As we know not all amplifiers provide an accurate output, and there is always cost factor to consider. In our previous article, we explain power …

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Resistor Symbol, working, Color code and Types

The resistor is an electronic component that restricts or limits the flow of current and divides the voltage in an electronic circuit. It is one of the most important passive components of an electronics industry because, without these components, active devices cannot process the electrical signals. Its main purpose is to provide a precise quantity of electrical resistance. In our previous articles, we explain, capacitors, types of capacitors, diodes in detail. In this article, we are going to explain resistors, color coding, and types of resistors in detail. Resistors Basics: Resistors mainly added to those circuits where they complement the …

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Bridge Rectifier Circuit, Operation, Characteristics & Advantages

Full wave bridge rectifier is another type of full wave rectifier used to convert an alternating current input into a direct current output. In a bridge circuit configuration, it comprises of four diodes that provide the same polarity of output for either polarity of the input. The main feature of this diode bridge which makes it more efficient than centre tap rectifier is its polarity i.e. the polarity of output is same as that of input. In our previous articles, we explain rectifier, half wave rectifier, Efficiency equation of half wave rectifier, efficiency equation of full wave rectifier etc. In …

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Full wave Rectifier Efficiency Equation and Applications

Full wave rectifier basically uses both half cycles of the applied AC voltage and converts an AC voltage into a pulsating DC voltage. In full wave rectification, one diode conducts during one half-cycle while other conducts during the other half cycle of the applied AC voltage. It has some advantages over half wave rectifier like it has high average output DC voltage and has much fewer ripples resulting in the smoother output waveform. In our previous article, we explain Rectifier, half wave rectifier efficiency, diodes, p-n junction etc in detail. In this article, we are going to explain the mathematical …

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Gallium Oxide: Semiconductor material with improved Heat conductivity

According to the recent work by Flosfia, a start-up in Kyoto, gallium oxide is one of the best semiconductor material with improved heat conductivity. The electronic component made from these type of material easily passes the electricity through power supplies, inverters etc are cheap and capable of handling high voltages. For the movement of electrons from the valence band to the conduction band, bandgap plays a vital role. Gallium oxide devices have approximately 5eV bandgap higher than that of silicon carbide ( 3.3 eV ) or gallium nitride (3.4 eV) which makes it more efficient. Due to the higher band …

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Full Wave Rectifier Circuit, Characteristics, Advantages & Disadvantages

A Full wave rectifier is a kind of rectifier that rectifies both waves (positive and negative) of the input signal, unlike a half-wave rectifier circuit. In this way, this uses the full signal and the wastage is minimum. And so the efficiency is maximum. The full-wave rectifier circuit is also of  2 types i.e. Center Tapped and Bridge Rectifier. Unlike the Half wave rectifier, this rectifier circuit is mostly used because of its high efficiency. We have already discussed the rectifier circuits and half-wave rectifier circuit in detail in our previous tutorials. From those tutorials, we got to know that …

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Half wave Rectifier Circuit, working, operation and characteristics

We have covered the basics of Rectifier and its types in our previous article. Now we will learn about each type of rectifier individually. In this article, we will cover all about half wave rectifier. As we have read that there are mainly three types of rectifiers, namely half wave, full wave, and center tapped. This classification is done keeping in mind whether it uses full AC voltage waveform or half. Keep this point in mind while going through the rest of the article. What is Half Wave Rectifier? Half Wave Rectifier Definition can be given as: A Half wave …

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