Bipolar Junction Transistor (BJT)
In the article of diode, we have seen that it is a two-terminal simple PN Junction device. If we connect two diodes back to back in such a way that,…
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Turn-off Methods (Commutation) of SCR
The Silicon Controlled Rectifier (SCR) is a unidirectional three-terminal device. When gate pulses are given to the SCR, it starts conducting. There are several methods to turn on (trigger) SCR….
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SCR Triggering (Turn-on) Methods
When SCR anode terminal of SCR is connected with a positive terminal of SCR and cathode terminal of SCR is connected with a negative terminal of SCR. In this type…
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Silicon Controlled Rectifier (SCR) – Thyristor
Before the invention of thyristor, semiconductor diodes are used for rectification. But the diodes are not useful for high voltage applications. To overcome this disadvantage, a thyristor is invented that…
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Inverter: Types and Applications
An inverter is a device used to convert DC power into AC power. The inverter is not a power generator, because it not produces electrical energy. The inverters converts one…
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Comparison of SCR, Power BJT, Power MOSFET, IGBT
In this article, we will discuss about compression of different Power Electronics Switches like; SCR (Silicon Controlled Rectifier), Power BJT (Bipolar Junction Transistor), Power MOSFET (Metal Oxide Semiconductor Field Effect…
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Zener Diode: Construction, Working, VI Characteristic, and Specification
The Zener diode is a special kind of heavily doped PN junction diode designed to conduct in reverse the reverse direction when a certain specified voltage reached. It is a…
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Types of Diodes
The diode is a semiconductor device which allows the current to flow in one direction. Therefore, this device is also known as the unidirectional semiconductor device. In this article, we…
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Gate Turn-Off Thyristor
The Gate Turn-Off Thyristor is also a device from the Thyristor family. The ordinary thyristor is not a fully controlled switch. It can be turned ON by gate but cannot…
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Silicon Controlled Rectifier (SCR): Structure, Symbol, and Working
The semiconductor diode was an antecedent to thyristors. The modern power electronics truly started after the emergence of the thyristors. The concept of the thyristor introduced in 1956 by J.L….
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