Crowbar fault protection circuit
April 24, 2016
Crowbar circuit is used to protect circuit or equipment under fault condition Over Current Causes: Over current flow through thyristors...
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R R-C Firing Circuits Disadvantages
April 24, 2016
Firing Circuits: Gate triggering is the most commonly used turn-on method employed to switch on the thyristors. Triggering circuits is...
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How to test SCR using Multimeter
April 18, 2016
This post will discuss about testing SCR – Silicon Controlled Rectifier with thte help of Ohmmeter. The thyristor pin assignment diagram...
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How Snubber Circuit works ?
April 18, 2016
The Snubber circuit is one type of dv/dt protection circuit of the thyristor. With the help of snubber circuit, the...
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How to Test TRIAC with Multimeter
April 18, 2016
How to test TRIAC with Digital Multimeter OR using Ohmmeter? In this shot post we will discuss about how to test...
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Types of IGBT
January 3, 2016
Insulated Gate Bipolar Junction Transistor (IGBTs) are normally classified into two types. They are namely (i) Non Punch Through IGBT...
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Basics of Thyristor
December 18, 2015
Thyristor is a three terminal device with four layers of alternating P and N type material (three P-N junctions). The...
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SCR Switching Characteristics
December 18, 2015
SCR Switching Characteristics or Dynamic Characteristics: The switching characteristics are important particularly at high-frequency, to define the device velocity in...
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SCR Triggering Methods
December 18, 2015
Triggering (Turn on) Methods of Thyristor: Triggering:- The turning on Process of the SCR is known as Triggering. In other...
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Turning Off SCR – Commutation
December 18, 2015
To tum on a thyristor, a low voltage, short duration pulse is applied to the gate (typically 4V, 100µs). Once the...
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