Two stage rc coupled amplifier, Electrical Engineering

Assignment Help:

Q. Two Stage Rc Coupled Amplifier?

1451_Two Stage Rc Coupled Amplifier.png

It is the most popular type of a multistage amplifier because it is cheap and provides excellent audio fidelity over a wide range of frequencies.It is usually employed for voltage amplification.

Coupling capacitor is used to connect the output of first stage to the base i.e, input of second stage and so on.The coupling from one stage to next stage is achieved by a coupling capacitor followed by a connection to a shunt resistor.Such amplifiers are called RC coupled amplifiers.

When an ac signal is applied to the base of the first transistor it appears in the amplified form across its collector load Rc .The amplified signal developed across Rc is given to the base of the next tsage through Cc.The second stage does further amplification.Thus cascaded stages amplifies the signal and the overall gain is increased. The total gain is less than the product of the gain of the individual stages i.e,

Total gain  < β1 × β2

This is because the second stage is made to fall on the first stage .The effective load resistance of the first stage is reduced due to the shunting effect of the input resistance of the second stage.


Related Discussions:- Two stage rc coupled amplifier

Transmission - salient features of nep, Transmission: The policy empha...

Transmission: The policy emphasizes in which adequate and timely investment along within efficient and coordinated operation is essential for developing a robust and integrate

Transformers, determine the efficience of a 16 KVA transformer for the full...

determine the efficience of a 16 KVA transformer for the full-load,unit power factor

How a transistor in common-base configuration amplify signal, Q. With a cir...

Q. With a circuit diagram explain how a transistor in common-base configuration amplify signals.  The common-base terminology is derived from the fact that the base is common t

The fundamental frequency , The frequency domain representation of a signal...

The frequency domain representation of a signal is shown  below: i. What are the fundamental frequency and the corresponding period of this signal (shown in Figure )? ii.  Pl

Light triggering - power semiconductor devices , Light Triggering Whe...

Light Triggering When  light is  thrown  on silicon the hole electron pair get excited an increases hence  the leakage  current of J 2   increases which  will increase I C1 a

For carry flag - conditional jumps , For carry Flag JC (  jump on  Ca...

For carry Flag JC (  jump on  Carry ) and JNC (Jump  on No carry ) Instructions : JC transfer the  execution of the  program to the  specified memory  address if  carry

Electromechanical meters, Electromechanical Meters Electromechanical e...

Electromechanical Meters Electromechanical energy meters are based on the Ferraris Principle (see note in the margin). The working of these meters is explained. Working o

Interpretation and analysis using remote sensing, Q. Interpretation and ana...

Q. Interpretation and analysis using remote sensing? Interpretation and analysis using remote sensing Various characteristics of a river can be understood by studying its planf

What is elementary diode circuits, Q. What is Elementary Diode Circuits? ...

Q. What is Elementary Diode Circuits? Semiconductor diodes are used in a wide variety of applications. Their usage abounds in communication systems (limiters, gates, clippers,

Explain working of presentation layer, Q. Explain working of Presentation L...

Q. Explain working of Presentation Layer? This is concerned with format of the data represented, in order to overcome difference in representation of information as supplied to

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