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

Explain acceptance cone, Explain Acceptance cone? The fibre air - core ...

Explain Acceptance cone? The fibre air - core interface is display below: In this figure Omax is the maximum angle, inside that the rays undergo total internal reflecti

What is the function of mode set register in 8257, What is the function of ...

What is the function of mode set register in 8257? The mode set register is used for programming the 8257 as per the needs of the system. The function of the mode set register

Where does the real mode on the cpu come from, The original 8086, which onl...

The original 8086, which only had 1 MB of memory. This megabyte is dividing into low memory for IRQ tables, application memory and high memory.

Determine the disadvantages of GPS system, Determine the disadvantages of G...

Determine the disadvantages of GPS system -  Maps not up to date hence instructed to carry out an incorrect manoeuvre (for example turn into a road that no longer exists) -

Express the storedmagnetic energ, A relay is essentially an electromechanic...

A relay is essentially an electromechanical switch that opens and closes electrical contacts. A simplified relay is represented in Figure. It is required to keep the fenomagnetic p

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

PSpice Project, I would send the project file so you can take a look at it....

I would send the project file so you can take a look at it.

What do you mean by frequency response, Q. What do you mean by Frequency Re...

Q. What do you mean by Frequency Response? As with all electronic circuits, op amps have limited frequency response. Because of the negative feedback of the circuit, the passba

Explain what is interrupt latency, Interrupt latency refers to the amount o...

Interrupt latency refers to the amount of time among when an interrupt is triggered and when the interrupt is observe by software.

What are the basic operations of mosfet, Q. What are the basic operations ...

Q. What are the basic operations of  MOSFET? The gate to source voltage is set to zero volts by the direct connection from one terminal to the other,and a voltage Vds is applie

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