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Since its input impedance is much higher than its output impedance it is also termed a "BUFFER" for this reason it is also used in digital circuits with basic gates...

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11y ago

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Application of a common - collector amplifier circuit?

Common collector amplifier can be used as a voltage buffer and in impedance matching


Which bjt transistor amplifier can be used as a voltage buffer?

the common collector can use as voltage buffer


What is the formula for VE in a common collector amplifier?

what is common collector


What is the other name for the common-collector amplifier?

emitter follwer


what is the Primary function of the common collector amplifier?

current gain


Why is a common collector used in the last stage of the amplifier?

becoz it gives good gain which is necessary for an amplifier.


Main use of a Common collector transistor amplifier is?

No voltage gain


What are the advantages and disadvantages in using common collector amplifier?

Current gain. At the cost of no voltage gain.


What is the applications of bootstrap amplifier?

it is a mechanism applied in an amplifier so as to raise it's input impedance.Mostly this mechanism is applied in a common collector(emitter follower) amplifier.


Why is common emitter is greater than common collector?

Common-emitter gives more voltage gain because a common-collector amplifier has a voltage gain of 1. But a common-collector can have a power gain because the input impedance is much more than the output impedance.


Why is it the phase relationship between input and output signals of the common collector amplifier is in phase?

no phase shift


Why in common collector amplifier however you change value of resistance not amplifier in voltage?

The question does not quite make sense. It sounds like you are asking why does changing the emitter resistor in a class C common collector amplifier not affect the output voltage? If so, the answer is that the common collector is an emitter follower, meaning that the emitter will follow the base, less the base-emitter junction voltage, within the limits of hFe. The resistor is simply there to ensure output biasing when the base voltage goes low.