Current relations in common emitter configuration, Electrical Engineering

Assignment Help:

Q. What are the Current relations in common emitter configuration?

In a CB configuration Ie is the input current and Ic is the output current. These currents are relayed through the equations given below

Ie=Ic+Ib

Ic=IIe+Icb0

In CE configuration, Ib becomes the input current and the Ic is the output current. We are interested in knowing how the output Ic is related with the input current Ib. That is, we should find a relation such as

Ic = f(Ib)

To obtain the relation, we simply substitute the expression  of  Ie  from the equations given earlier,so that

Ic = IDc(Ic+Ib) + Icbo

or

(1-Idc)Ic=IdcIb+Icbo

or

Ic = (Idc/(1-Idc))Ib+(1/(1-Idc))Icbo

In thjis equation,Ic is given in terms of Ib. The equations can be simplified somewhat by defining

? Idc/(1-Idc)

and

Iceo=Icbo/(1-Idc)

thus equation becomes

Ic=?dcIb+Iceo


Related Discussions:- Current relations in common emitter configuration

What is meant by thermal runaway, Q. What is meant by Thermal Runaway? Expl...

Q. What is meant by Thermal Runaway? Explain with reference to a transistor.How is it avoided in circuits? The collector current of a transistor increases with increasing tempe

Relationship between the induced e.m.f and the network, Mathematical relati...

Mathematical relationship between the induced e.m.f and the network Faraday noted that the e.m.f induced in a loop is proportional to the rate of change of magnetic flux by it:

Resonance, i want to plot a system current transfer matrix element vs frequ...

i want to plot a system current transfer matrix element vs frequency curve.how can i draw it?any suggestion.

Simulate a diode application circuit using multisim ewb, a. Simulate a diod...

a. Simulate a diode application circuit using Multisim EWB.  Compare calculated and simulated results Each student must choose one of the following circuits from question 1 (Ref

Microcontroller - introduction to microprocessors , Microcontroller Mic...

Microcontroller Microcontroller  is also known  as computer  on a chip  this  includes basic  features of microprocessor (ALU Registers  and control circuits ) with  1 k to 2k

Explain basic principle of linear sweep voltage generator, Q. Explain the b...

Q. Explain the basic principle of linear sweep voltage generator A linear time base generator or sweep generator is one that provides an output waveform, a portion of which exh

Input voltage to system and the output motor speed, A system contains an am...

A system contains an amplifier with a gain of 10 offering the armature voltage for a motor which provides an output speed which is proportional to the armature voltage, the constan

Working principle of ultrasonic machining, Explain the basic working princi...

Explain the basic working principle of ultrasonic machining with the help of diagram. What are the different kinds of tool materials explain, tool holders are used in ultrasonic

Clipper and clamper circuit, Clipper Circuits: Clipper circuit have ab...

Clipper Circuits: Clipper circuit have ability to Clipper of portions of the input signals without distorting the remaining part of the alternating wave form. Clamper net

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