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

Find the maximum kva rating as an auto- transformer, Q. A 5-kVA, 480:120-V,...

Q. A 5-kVA, 480:120-V, two-winding, 60-Hz, single-phase transformer has an efficiency of 95% while delivering rated load at rated voltage and 0.8 power factor lagging. This transfo

Mid band voltage gain, For the amplifier circuit shown below estimate the m...

For the amplifier circuit shown below estimate the mid band voltage gain if the EARLY voltage (V A ) of the current mirror transistors is 80 volts.  Assume the d.c biasing is optim

Compute the maximum value of the voltage induced in the coil, Q. The coil i...

Q. The coil is placed so that its axis of revolution is perpendicular to a uniform field, as shown in Figure If the flux per pole is 0.02 Wb, and the coil, consisting of 2 turns, i

Third generation 1964 -1982 - history of computer , Third Generation ( 196...

Third Generation ( 1964- 1982 ) Invention of  technology  of integrated circuits created computers  of third  generation. In  several  logical  gates  are fabricated on a singl

Calculate the cost per bit for dram, A silicon foundry produced 1.2 million...

A silicon foundry produced 1.2 million 8-inch wafers in 1997; how many 600 mil die is that?  The foundry is scheduled to produce 20,000 12-inch wafers per month by the year 2001 us

Issues for installation of meters, Issues for Installation of Meters T...

Issues for Installation of Meters The subsequent should also be ensured: a) Appropriate crimping device should be used for crimping the lugs. Thimbles should be of appro

Mixed mode simulator, Mixed Mode Simulator: The circuit is preproc...

Mixed Mode Simulator: The circuit is preprocessed. The test points and waveform markers are located in input and output of the circuit. GND net is set like reference net.

State the features of washing machines, State the features of Washing machi...

State the features of Washing machines Microprocessor would be used to control the below features, for instance: - Water temperature -  Time for every cycle -  Wash cy

Determine the node voltage, Determine the node voltage: Determine the ...

Determine the node voltage: Determine the node voltage V and then current flowing through each element by using KCL. Solution Apply KCL at the node whose voltage is V.

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