Explain common collector configuration, Electrical Engineering

Assignment Help:

Q. Explain common collector configuration?

It is called the common-collector configuration because (ignoring the power supply battery) both the signal source and the load share the collector lead as a common connection point:

1952_Explain common collector configuration.png

Since the emitter lead of a transistor is the one handling the most current (the sum of base and collector currents, since base and collector currents always mesh together to form the emitter current), it would be reasonable to presume that this amplifier will have a very large current gain .the current gain for a common-collector amplifier is quite large, larger than any other transistor amplifier configuration.

638_Explain common collector configuration1.png



conditions where the transistor is conducting. Cutoff occurs at input voltages below 0.7 volts, and saturation at input voltages in excess of battery (supply) voltage plus 0.7 volts. Because of this behavior, the common-collector amplifier circuit is also known as the voltage-follower or emitter-follower amplifier. This amplifier configuration has a voltage gain of slightly less than 1In the common-collector configuration, though, the load is situated in series with the emitter, and thus its current is equal to the emitter current. With the emitter carrying collector current and base current, the load in this type of amplifier has all the current of the collector running through it plus the input current of the base. This yields a current gain of ? plus 1:

2119_Explain common collector configuration2.png


Related Discussions:- Explain common collector configuration

Determine flux in the central limb, Determine flux in the central limb: ...

Determine flux in the central limb: For the magnetic circuit shown in Figure the value of flux in the right limb is 0.48 m Wb and the number of turns wound on the central limb

Chemistry, what is the definition of laws of chemical combination ?

what is the definition of laws of chemical combination ?

Find the line current delivered by the source, Q. Balanced wye-connected lo...

Q. Balanced wye-connected loads drawing 10 kW at 0.8 power factor lagging and 15 kW at 0.9 power factor leading are connected in parallel and supplied by a 60-Hz, 300-V, three-phas

Cpi compare immediate instruction , CPI Compare Immediate Instruction ...

CPI Compare Immediate Instruction The 8 bit  data  specified  in the  instruction is  compared with the  contents of the accumulator. The comparison  is done by  subtracting

Determine the required tapping on the transformer, An induction motor has a...

An induction motor has a starting current that is 6 times the full-load current and a per-unit full- load slip of 0.04. The machine is to be provided with an autotransformer starte

Determine the line-to-line voltage, Q. A one-line diagram of a three-phase ...

Q. A one-line diagram of a three-phase distribution system is given in Figure. Determine the line-to-line voltage at the sending end of the high-voltage feeder when the transformer

Advantages of subscriber loops signalling, Q. Advantages of subscriber loop...

Q. Advantages of subscriber loops signalling? (i) Information can be exchange between processors much more faster than when channel associated signalling is used. (ii) As a

Elucidate the process of inter-register signalling, Q. Elucidate the proces...

Q. Elucidate the process of inter-register signalling. Ans: Registers are used in common control exchanges to store as well as analyze routing data. They are provided on a

Ampliier, importance of amplifier in electronic circuits

importance of amplifier in electronic circuits

Quality Tools for Improvement, Quality Tools for Improvement The envir...

Quality Tools for Improvement The environment of the business of power sector has been modified recently largely because of partial deregulation of this sector. The required h

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd