Fixed bias, Electrical Engineering

Assignment Help:

Fixed bias (base bias):

1496_Fixed bias.png

Diagram: Fixed bias (Base bias)

This type of biasing is also known as base bias. In the instance above figure, the single power source (for instance, a battery) is employed for both collector and base of transistor, even though separate batteries can as well be used.

In the given circuit,

Vcc = IBRB + Vbe

Hence,

IB = (Vcc - Vbe)/RB

For a specific transistor, Vbe does not change significantly during use. Since Vce is of fixed value, on selection of RB, the base current IB is fixed. Hence this kind is termed as fixed bias type of circuit.

As well for given circuit,

Vcc = ICRC + Vce

Hence,

Vce = Vcc - ICRC

The common-emitter current gain of a transistor is a significant parameter in circuit design, and is fixed on the data sheet for a particular transistor. It is represents as β on this page.

Because

IC = βIB

We can acquire IC as well. In this way, operating point given as (Vce,IC) can be set for specific transistor.


Related Discussions:- Fixed bias

Consider the circuit of the noninverting amplifier, (a) Consider the circui...

(a) Consider the circuit of the noninverting amplifier in Figure, including an ideal op amp. Obtain an expression for the voltage gain of the overall circuit. (b) Let R i = 10

Give some applications of german silver, Give some applications of German s...

Give some applications of German silver. German silver is an alloy of zinc, nickel and copper. German silver is used in electrical measuring instruments.

Explain state transition diagram, a. Explain State Transition Diagram and d...

a. Explain State Transition Diagram and define the various SDL symbols used in state transition diagram. b. Draw the signal exchange diagram for a local call used to show the se

Passive filters, Passive filters: Passive implementations of linear fi...

Passive filters: Passive implementations of linear filters are based upon combinations of inductors (L), resistors (R), and capacitors (C). These sorts are collectively termed

Gis for distribution network management, Gis for Distribution Network Manag...

Gis for Distribution Network Management: You are well aware of the problems facing the distribution utilities to meet the day-to-day requirements of the power consumers, like

Objective of long-term plans for technical loss reduction, Objective of Lon...

Objective of Long-Term Plans for Technical Loss Reduction The primary objectives of strengthening and improvement of sub-transmission and distribution system in the long-term

#DSP ., #The requirement is as follows- There is a signal which is in the r...

#The requirement is as follows- There is a signal which is in the range of 0 to 5Hz. This signal frequency composition is to determined. The resolution of the determination is 1Hz.

Explain medium length lines, Explain Medium length lines? Medium length...

Explain Medium length lines? Medium length lines cover lines in the range of 50 to 150 miles (80 to 240 km). Due to the increased length of the line, the shunt capacitance of t

Properties of carbon and tungsten in lamp, explain the proprty and the appl...

explain the proprty and the application of carbon and tungsten in lamp?

Classify the magnetic materials, Classify the magnetic materials into diama...

Classify the magnetic materials into diamagnetic, paramagnetic, ferromagnetic and ferrimagnetic materials. Also give examples of each. Classification of magnetic materials:-

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