Explain classification of amplifiers on biasing conditions, Electrical Engineering

Assignment Help:

Q. Explain the classification of amplifiers on the biasing conditions?

Based on the amount of transistor bias and amplitude of the input signal, amplifiers can be classified as class A , class B, class     B and class c.

CLASS A AMPLIFIER: In a class A amplifier, the transistor is biased such that the output current flows, i.e. the transistor is on for the full cycle (360) of the input a.c. signal.

CLASS B AMPLIFIER: In the class B amplifier the transistor bias and the amplitude of the input signal are selected such that the output current flows ,i.e. the transistor is ON for less than one half cycle (180) of the input a.c. signal .

CLASS C AMPLIFIER: In a class c amplifier the transistor bias and the amplitude of the input signal are selected such that the output current flows i.e. the transistor is ON for less than one half cycle (180) of the input a.c. signal.


Related Discussions:- Explain classification of amplifiers on biasing conditions

Dc generator, A 20kw 220v shunt generator has armature resistance of 0.07 a...

A 20kw 220v shunt generator has armature resistance of 0.07 and a shunt field resisitance 900 ohm find field loss?

Obtain the thevenin equivalent at terminals, Consider the circuit of Figure...

Consider the circuit of Figure (a), including a dependent source. Obtain the Thévenin equivalent at terminals a-b.

Calculate the diameter of copper wire, Calculate the diameter of copper wir...

Calculate the diameter of copper wire of length 100 metres used as winding material in a transformer such that the resistance of the whole winding is 2 ohms. Calculate the diameter

What are tightly coupled systems, What are tightly coupled systems or close...

What are tightly coupled systems or closely coupled systems? In a tightly coupled systems the microprocessor (either coprocessor or independent processors) might be share a com

Cpld design project, 1) Study the CPLD Design Project Brief to gain an unde...

1) Study the CPLD Design Project Brief to gain an understanding of the project, and the System Specification, Circuit Description, Pre-processing and Post-processing Requirements f

Domestic financial system, Q. "Developing countries could delay opening the...

Q. "Developing countries could delay opening the capital account until the domestic financial system is strong enough to withstand the sometimes flow of world capital and violen

Dsp, A pure sine wave with a frequency of 100Hz is sampled at 150Hz. At whi...

A pure sine wave with a frequency of 100Hz is sampled at 150Hz. At which one of the following frequencies would you expect an alias?

Clippers, Which clipper would you prefer between the series and the shunt c...

Which clipper would you prefer between the series and the shunt clipper? Why?

What do you mean by phase sequence, Q. What do you mean by Phase Sequence? ...

Q. What do you mean by Phase Sequence? It is standard practice in the United States to designate the phase A-B-C such that under balanced conditions the voltage and current in

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