Write short notes on the stability factor of biasing circuit, Electrical Engineering

Assignment Help:

Q. Write short notes on the Stability Factor of Biasing circuits.

The degree of success achieved in stabilizing Ic in the face of variations in Ico is expressed in terms of stability factor S and it is defined  as the rate  of change of collector current w.r.t  Ico  keeping  â and VBE constant.

S=dIc/dIco at constant â  and VBE

From  the above equation it is obvious that smaller is the value of S ,higher is the stability.The ideal value of S is unity (because Ic includes Ico) but it is  never possible to achieve it in practice.Actually there are two stability factors Sv and S â  are defined as below:

                                     Sv = ÄIc/ÄIBE at constant Ico and  â

                                     SB ÄIc/ÄI â at constant Ico and  VBE

General expression for Stability Factor

                               S = 1+â/(1- âdIB/dIc)


Related Discussions:- Write short notes on the stability factor of biasing circuit

ELECTRIC DRIVES, BLOCK DIAGRAM OF DIGITAL CONTROL OF ELECTRIC DRIVES

BLOCK DIAGRAM OF DIGITAL CONTROL OF ELECTRIC DRIVES

Determine the low-pass filter and amplitude spectra, Q. Let a square-wave v...

Q. Let a square-wave voltage source having an amplitude of 5V, a frequency of 1 kHz, a pulse width of 0.5 ms, and an internal source resistance of 50  be applied to a resistive lo

Explain the and gates - microprocessor, Explain the AND GATES - Microproces...

Explain the AND GATES - Microprocessor? The AND GATE has a logic 1 or high output if the entire inputs are high. The boolean and symbol expression for a 3-input AND gate is sho

Superhet receiver, Write a short summary of the AM superhet receiver, in ex...

Write a short summary of the AM superhet receiver, in exacting consider how the demodulation stage works, and remark on the choice of component values used.

Define the baud rate with respect to serial communication, With respect to ...

With respect to serial communication define the baud rate. The rate of data transfer into serial data communication is denoted in bps. Bits per second (bps) are the rate of in

What are the different types of distributing frames, Q. What are the differ...

Q. What are the different types of distributing frames used in exchanges? Ans: Different distribution  frames  used  in  exchange  are  displayed in  figure.  Each subscribe

Cross section of nmos with channel formed: on state, Cross Section of NMOS ...

Cross Section of NMOS with Channel Formed: ON state A metal-oxide-semiconductor field-effect transistor (MOSFET) is based upon the modulation of charge concentration through a

find the sending end voltage and current, A 3-phase transmission line is 2...

A 3-phase transmission line is 200km long. The line has a per phase series impedance of 0.25+j0.45 Φ/km and shunt admittance of j7.2ΦS/km. The line delivers 250MVA, at 0.6 lagging

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