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

Obtain complete solution for the current for given circuit, For the circuit...

For the circuit of Figure(a), obtain the complete solution for the current i L (t) through the 5-H inductor and the voltage v x (t) across the 6- resistor.

Sensor selection, Research and recommend a sensor for a real full size conv...

Research and recommend a sensor for a real full size conveyor system of approximately 1000mm width to detect objects of varying size passing along it. Discuss the suitability of th

Compute the induced emf, Compute the induced emf: If a coil of 150 tur...

Compute the induced emf: If a coil of 150 turns is linked with a flux of 0.01 wb while carrying a current of 10 Amp, compute the inductance of coil. Now, if current is reverse

What is autotransformers, Q. What is Autotransformers? In contrast to a...

Q. What is Autotransformers? In contrast to a two-winding transformer, the autotransformer is a single-winding transformer having a tap brought out at an intermediate point. Th

The initial discharge current, A 0.1µF capacitor is charged to 200 V before...

A 0.1µF capacitor is charged to 200 V before being connected across a 4 kΩ resistor. Determine: (a)  The initial discharge current (b)  The time constant of the circuit

Bus organisation, Bus Organisation Set of  communication lines in micro...

Bus Organisation Set of  communication lines in microprocessor  which  carry  bits from microprocessor to  peripherals  ( memory  inputs ports  output  ports  and other chips

Planning and research in power system, Q. Planning and Research in power sy...

Q. Planning and Research in power system? Energy research worldwide is assuming top priority, in particular because of economic, en - vironmental, and resource constraints. DOE

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