Explain output ce characteristics, Electrical Engineering

Assignment Help:

Q. Explain output CE characteristics?

1. In the active region ic increases slowly as Vce increases. The slope of the curved is greater than the CB output characteristics. In common emitter output characteristics the input current characteristics is constant,i.e ib is constant, but current Vc increases with Vce.

2. When Vce falls below a few tenth of a volt ,Ic decreases this occurs as Vce drops below the value of Vbe; the collector base junction then becomes forward-biased. In this region both junctions of the transistor are forward biased. The transistor is working in the saturated region. It is called saturation region because the current Ic no longer depends upon the input current Ib.

3. In the active region ,the collector current is ?dc times greater than the base current. Thus, small input current,Ib produces a large output current Ic.

4. The collector current is not zero when Ib is zero. It has a value of Iceo, the reverse leakage current. The current Iceo is related with. Icbo by the eqn

                                  Iceo = 1/(1-Idc)*Icbo

                                               Or

                                  Iceo = (1+?dc)Icbo


Related Discussions:- Explain output ce characteristics

Gis application architecture, GIS application architecture: GIS applic...

GIS application architecture: GIS application architecture should 1  Give a framework and the essential programming interfaces to enable complex GIS applications to be deve

Ampere''s law, This is at the heart of the analysis of electromagnetics. It...

This is at the heart of the analysis of electromagnetics. It is based on a series of experiments conducted by the French scientist Ampere (1775 - 1836), in which the force between

What do you understand by breakdown diodes, (a) Draw and illustrate the V-I...

(a) Draw and illustrate the V-I characteristics of PN junction diode. How the characteristics reflected with change in temperature? (b) Describe physically why a PN junction dio

State fleming''s right-hand rule, Fleming's Right-hand rule states: Let ...

Fleming's Right-hand rule states: Let the thumb, first finger and second finger of the right hand be extended such that they are all at right angles to every other. If the first

Electromagnetic torque, The torque produced by each conductor in the field ...

The torque produced by each conductor in the field will be:  where A is the area of the armature winding in the magnetic field, Ia is the current in armature winding, and B

What is tunnel effect and applications of tunnel effect, What is tunnel eff...

What is tunnel effect? Discuss the Alpha decay as an example of tunnel effect. Prove that tunneling increases on decreasing the height and width of the barrier. Explain what do you

Determine the output resistance of the circuit, Q. (a) Consider the ampl...

Q. (a) Consider the amplifier block in the circuit configuration of Figure. Find an expression for v 2 /v 1 in terms of R i , R o , and A of the amplifier. (b) Determine the

Determine briefly subscriber loop system, Q. Determine briefly subscriber l...

Q. Determine briefly subscriber loop system.  Give some technical specification for subscriber lines. Ans: Subscriber Loop System: Each subscriber in a telephone network is

Construction and operation of jet, Construction and operation of jet: ...

Construction and operation of jet: jet is a three terminal device one terminal capable of controlling the current between the other two. Basic construction of an n chann

Sommerfield’s free electron theory, Write down basic postulates of sommerfi...

Write down basic postulates of sommerfield’s free electron gas model. Show that the number of energy states per unit energy is given by g(E) = 4Rv/h 3 (2m) 3/2 E 1/2 .  What is

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