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

Conditional jumps , Conditional Jumps The most  important  part of  pr...

Conditional Jumps The most  important  part of  programming is its  decision making capability. Which is  normally  provided  by statements  like if  then else in high level

Zener Diode, A Zener diode has the specifications VZ=6.8V and PDmax.=500mW....

A Zener diode has the specifications VZ=6.8V and PDmax.=500mW. Assume RZ=0. (a) Find the maximum allowable current iZ when the Zener diode is acting as a regulator. (b) If a sing

Design an integrator, Q. An integrator as shown in Figure is to be designed...

Q. An integrator as shown in Figure is to be designed to solve dy(t) / dt + 2000y (t) = 0 with y(0) = 5. If R i is chosen to be 10 k, find C f .

Waveguides, Why are waveguides not used at low frequencies?

Why are waveguides not used at low frequencies?

Singles phase half wave controlled rectifier with rl load, Singles Phase ...

Singles Phase  Half wave Controlled Rectifier  with RL Load When gate pulses are applied to the thyristor  at output voltage  v0 follows the input voltage  v s ( = V m sin ) s

Resistance of 800 m of copper cable of cross-sectional area, Find the resis...

Find the resistance of 800 m of copper cable of cross-sectional area 20 mm . Take the resistivity of copper as 0.02 Ωm.

Determine speed of the rotor field relative to rotor winding, Abalanced thr...

Abalanced three-phase, 60-Hz voltage is applied to a three-phase, two-pole induction motor. Corresponding to a per-unit slip of 0.05, determine the following: (a) The speed of t

What do you mean by feedback in amplification, Q. What do you mean by Feedb...

Q. What do you mean by Feedback in amplification? Feedback :   Feedback in its broadest sense means that a certain amount of the output signal is "fed back" into the input. An

condition, explain how conduction take place in conducto

explain how conduction take place in conductor

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