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The (Class C, Common Collector) Emitter Follower is used to amplify the available current from a voltage driving circuit that might be disturbed by the load impedance.
If the actual voltage value is important, the emitter follower is often teamed up with an opamp which sets the emitter voltage based on the input voltage.
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Which transister is used in emitter follower circuit?
A: Any transistor of either polarity can be used as an emitter follower, The purpose of an emitter follower is to provide current to the load since it cannot provide any voltage gain
What is the effect of no emitter resistance on common emitter amplifier?
Limit current through emitter, Often the resistance is the load itself. So the restatnce limits current on what otherwise would act as a voltage follower.
Why we use emitter resistance in circuits?
The emitter resistor is connected to ground(in the case of an rc coupled amplifier).Also input signal applied at the base is grounded.Then the emitter resistor forms a feedback to the input signal (through the ground return path).So emitter resistor is also called feedback resistor.
An emitter follower has a voltage gain that is?
.7v less than unity for DC operation but unity for AC.
Why emitter follower preferred to transforms as a impedance matching?
because it has high input impedance and low output impedance
What kind of feedback is used in emitter follower?
emitter follower is a type of negative feedback ,
Which transister is used in emitter follower circuit?
A: Any transistor of either polarity can be used as an emitter follower, The purpose of an emitter follower is to provide current to the load since it cannot provide any voltage gain
What is the advantage of emitter follower?
The advantage of the emitter follower is that it has a positive gain of 1.
What is the difference between a CB amplifier and CE and emitter-follower?
I think you mean a common emitter amplifier, which is an amplifier of voltage. Emitter-follower or common collector amplifiers are used to match impedances, or to amplify power or current. The emitter-follower is a type of common emitter circuit that has a resistor between the emitter and ground. The output signal is taken from the point between the emitter and its resistor.
What are the differences between Emitter follower and source follower?
no difference between emiter follower and source follower
Why emitter follower is called so?
Because of the geometry of the common collector configuration, changes in base voltage appear at the emitter. Said another way, what happens at the base pretty much happens at the emitter, and the emitter can be said to "mirror" or "follow" the base. The emitter is a follower of the base, and the name emitter follower appeared and was used.
What is emitter follower?
A: When a signal is not amplified but simply taken from an emitter the reason is that the emitter will provide better current capabilities
What is Voltage gain of emitter follower?
The voltage gain of an emitter follower is theoretically 1. In practice, due to losses, it is marginally less than one.
Why common current is called an emitter follower?
It is not called that.
The output voltage of an emitter follower is?
the same as the base minus Vbe drop. used for more power transfer
Why collector current is called an emitter follower?
It is not. You have something confused.
Why Common Emitter Configuration is most commonly used in amplifier circuits?
the common emitter configuration is most widely used in amplifer circuits because of its high voltage,current & power gain.the common emitter configuration is most widely used in amplifer circuits because of its high voltage,current & power gain.
