why & how in most of the new applications, FETs are used than BJTs ?

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phatcreators

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why & how in most of the new applications, FETs are used than BJTs ?

Can we replace BJTs by FETs in any kind of design ?

thanX
 

FET is a voltage controlled device and so it doesnt need a high current to drive it where as the power transistor will have very less current gain so its base should be drived with the high current driver, another advantage of FET over BJT is very high input impedance,less thermal dependent noise,etc.., if this answer is not sufficient post your query elabrately so that i can help you
 

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