Question
Download Solution PDFWhich of the following is the best, considering the speed of operation?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 3.
Concept:
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Concept:
MOSFET - Majority carrier device
Power BJT, SCR - Minority carrier devices.
IGBT - Exhibits the properties of both minority carrier and majority carrier devices.
Minority carrier devices will have stored charge whereas the majority carrier devices don't.
Explanation:
Since minority carrier devices like Power BJT and SCR consist of stored charge, these devices take more time to charge and discharge thereby the speed of operation reduces.
Since power MOSFET is a majority carrier device, it takes less time to charge and discharge, thereby the speed of operation is highest.
Since IGBT consists of both minority and majority carriers, its speed is less than power MOSFET and more than the power BJT and SCR.
Increasing speed of operation is SCR, Power BJT, IGBT, power MOSFET
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