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

Explain contact resistance, Explain Contact resistance. Contact resista...

Explain Contact resistance. Contact resistance: It is measured as the voltage drop from tail to tail of the mated contacts along with specified current flowing through the cont

Survey process - issues of power supply, Survey Process -  issues of power...

Survey Process -  issues of power supply The steps to be followed in any like survey procedure are given below. There is always a possibility of going back to any previous ste

Operation of a transistorized phase shift oscillator, Q. Discuss the operat...

Q. Discuss the operation of a transistorized phase shift oscillator with the help of a diagram? Explain the phase shifting circuit? An oscillator is a circuit which converts elec

Find the expressions for the inductor current, Consider the RL circuit of F...

Consider the RL circuit of Figure with R = 2, L = 5H, and v(t) = V = 20 V (a dc voltage source). Find the expressions for the inductor current i L (t) and the inductor voltage v L

Prepayment meters, Prepayment Meters Usage of prepayment meters will e...

Prepayment Meters Usage of prepayment meters will extensively improve the revenue collection of the utilities. There are a number of ways in that prepayment assures revenue pr

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:

Determine the doppler frequency, We are given an M=32 pulse sequence of slo...

We are given an M=32 pulse sequence of slow time data, collected with PRF = 10 kHz.  We want to use a Cooley-Tukey radix 2 FFT algorithms to compute the Doppler spectrum of the dat

What is ringer circuit in telephone hand set, Q. What is Ringer Circuit in ...

Q. What is Ringer Circuit in telephone hand set? Purpose of the ringer is to alert destination party of incoming calls. Audible tone from the ringer should be load enough to be

Describe transistor stability parameters, Q. Describe transistor stability ...

Q. Describe transistor stability parameters The two parameters are · The stability factor ,K · Stability measure,ß1 These parameters determine the transistor stability

Construction of a two stage rc coupled amplifier, Q. Describe the construct...

Q. Describe the construction of a two stage RC coupled amplifier with diagram. A cascaded arrangement of common-emitter transistor stages is shown above. The output Y1 of

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