Saturday, May 28, 2011

Basic Questions on Thyristor


1.       What is thyristor? Which is the most popular thyristor.
2.       What are the different modes of operation of a thyristor/
3.       How to turn on a thyristor ? What are the various conditions to do so .
4.       What are the turn on and turn off times of SCR.
5.       What is the differnce between thyristor and transistor
6.       How can we protect an SCR from over currents.
7.       Draw gate trigger for single phase full converter.
8.       Explain the cosine firing schemes for triggering of thyristors.
9.       Functions of pulse transformers in SCR and GTO.
10.   Expain the working of control rectifier .

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