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

Energy bands, Energy Bands 1) Since isolated atoms are brought togethe...

Energy Bands 1) Since isolated atoms are brought together to make a solid, the electron wave functions begin to overlap. 2) Several interactions occur, and, at the proper i

Write a short note on the working of darlington amplifier, Q. Write a sho...

Q. Write a short note on the working of Darlington Amplifier? A Darlington Amplifier is one that is employing the Darlington pair of transistors. It is a

What do you understand by common control, Q. What do you understand by comm...

Q. What do you understand by common control? In some switching systems, control subsystem may be an integral part of switching network itself. Such system iscalled direct contr

Balanced delta-connected load, Q. A balanced delta-connected load with a pe...

Q. A balanced delta-connected load with a per-phase impedance of 12 + j9  is supplied by a 173-V, 60-Hz three-phase source. (a) Determine the line current, the power factor, th

Discuss dos function call with one example, Discuss DOS function call with ...

Discuss DOS function call with one example. DOS function call: So as to use DOS function calls, always place the function number in register AH and load all other pertinent

Determine the h-parameters for the circuit, Q. Determine the h-parameters f...

Q. Determine the h-parameters for the circuit shown in Figure and obtain the transfer function V 2 /V 1 when I 2 = 0.

Evaluate the current using the loop-current method, Consider the circuit in...

Consider the circuit in Figure (a), which include a controlled source, and find the current in the 5-V source and the voltage across the 5- resistor by using (a) the loop-current

Which matels alloy make bronze, Bronze is an alloy of (A) Copper and T...

Bronze is an alloy of (A) Copper and Tin.               (B) Copper and Steel. (C) Copper and Mercury.      (D) Copper and Aluminium. Ans: Bronze is an alloy of Cop

Comparison between analog and digital storage oscilloscopes, The advantage ...

The advantage of the analog storage oscilloscope is that it has higher bandwidth and writing speed than a digital oscilloscope, being capable of operating speeds of about 15 GHz. T

How to calculate the bus - bar voltage and kilowatt output., Q.   Two shunt...

Q.   Two shunt wound generators running in parallel supply a total load current of 4000 A. Each generator has an armature resistance of 0.02? and a field of 40?. The fiels are exci

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