Explain the significance of the coupling capacitor, Electrical Engineering

Assignment Help:

Q. Explain the significance of the Coupling capacitor and the RE - CE circuit.

The function of the coupling capacitor is to isolate the amplifier input circuit from the source. Since capacitor blocks dc it does not allow the dc components from the input circuit to get to the base of transistor and to change the Q point.

Additional requirement of Cin is that it must pass the input ac signal unattenuated. Hence the lower cut-off frequency (LCF) of the amplifier is determined by the coupling capacitor.

The RE - CE  combination is connected in series with the cathode to obtain temperature stability stability and proper functioning of the amplifier.


Related Discussions:- Explain the significance of the coupling capacitor

Explain the meaning of duality in boolean algebra?, Explain the Meaning of ...

Explain the Meaning of Duality in Boolean Algebra? Any algebraic equality that derived from the axioms of the Boolean algebra remains true when the operators OR and AND are in

Dc motor, Why rhehostat is not used in the field of dc series motor

Why rhehostat is not used in the field of dc series motor

What do you mean by induction, Q. What do you mean by Induction? The es...

Q. What do you mean by Induction? The essentials for producing an emf bymagneticmeans are electric andmagnetic circuits,mutually interlinked. Figure (a) shows a load (or sink o

Determine the transfer function in notch network, Q. The twin-tee or notch ...

Q. The twin-tee or notch network shown in Figure is often used to obtain band-reject characteristics. (a) Determine the transfer function V 2 /I 1 . (b) Find the angular freq

Higher order address bus - pins and signals , Higher order  Address Bus ...

Higher order  Address Bus The 8085 microprocessor  has 8 pins  dedicated to higher order address A15 - A8. These pins  are used to connect  higher  order address bus. These  p

Describe the processor technology used for embedded system, a. Write the ad...

a. Write the advantages of choosing a single purpose processor over a general purpose processor. b. List out the hardware units that must be there in the embedded systems. c.

Back emf, Transistor Switching Circuit Design a) Sketchy a schematic d...

Transistor Switching Circuit Design a) Sketchy a schematic diagram showing how a transistor can be used to control the operation of a relay b) Determine what is meant by ba

Quality control systems, Give three reasons why a chamfer shouldn't be cons...

Give three reasons why a chamfer shouldn't be considered an "unimportant" dimension. When conducting an audit, what is the first step and what is its purpose? Why will calcul

Write notes on clamping, Q. Write notes on clamping ? When a signal dr...

Q. Write notes on clamping ? When a signal drives an open-ended capacitor the average voltage level on the output terminal of the capacitor is determined by the initial charge

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