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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Top 100 Power Electronics Questions & Answers
April 23, 2016
Why IGBT is very popular nowadays? Lower hate requirements Lower switching losses Smaller snubber circuit requirements What are the different...
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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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Electrical Drives Questions & Answers
April 18, 2016
What is meant by V/F control? When the frequency is reduced, the input voltage must be reduced proportionally so as...
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Power Electronics Interview Questions Part-1
April 18, 2016
Why thyristors are not preferred now a days for chopper fed DC drives? Since it requires commutation circuit, thyristors are...
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Basic Power Electronics Interview Questions
January 3, 2016
What is holding current in SCR? It is the minimum current required to hold the SCR in forward conduction state....
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Power Electronics Interview Questions & Answers
December 28, 2015
[1] What is full converter? What is dual converter? Full converter: When positive as well as negative half cycles of...
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