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What are the functions of transistors?

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stevemac

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explain the functions of a transistor.. (not applications/uses).
 

ubna

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Re: transistors

The function of a transistor is that it is a current controlled current source...
 

yousefsam

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transistors

the main function of transistor as an amplifier , this be clear when you applied ac vlotage as an input of transistor .
To get this be clear pls refer to "Electronice Devices and Circuit Theory" for "Boylestad" in chapter 5.
 

TwinT

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Re: transistors

The transistor used as an amplifier( and in the CE configuration), allows to change the "resistance" in two points (Colector - Emitter), in function to a small signal injected in the Base. In a way, this changes in the signal are "copied" to the resistance variations, and then we get a large signal with the same variations than the small (The name Transistor comes from Tranfer Resistor, because of this effect)
 

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