Explain the significance of the coupling capacitor, Electrical Engineering

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.

Posted Date: 6/11/2013 4:04:47 AM | Location : United States

Related Discussions:- Explain the significance of the coupling capacitor, Assignment Help, Ask Question on Explain the significance of the coupling capacitor, Get Answer, Expert's Help, Explain the significance of the coupling capacitor Discussions

Write discussion on Explain the significance of the coupling capacitor
Your posts are moderated
Related Questions
Gis for Distribution Network Management: You are well aware of the problems facing the distribution utilities to meet the day-to-day requirements of the power consumers, like

Operation - unijunction transistor: Operation : Imagine that the emitter supply voltage is turned biased and a small emitter reverse current flows. Then the intrinsic stand

I need help to build a circuit diagram for home energy management.It includes load controllers,a central system in which we should programme all of the control commands,and a two w

Interrupt Signals There are five  interrupt  signals in 8085 microprocessor.  These  signals  are used to inter rut the  current  program  under  execution and  transfer the ex

Designated Consumers - Features of Energy Conservation The Act gives the list of designated consumers, which involves the energy intensive industries, Railways, Port Trust, Tr

Explain keyboard interfacing to 8088 through 8279 . The 8279 is a programmable keyboard and display interfacing component which scans and encodes up to a 64-key keyboard and con

Suppose we have a coil wound onto a ring of material with relative permeability µ r . Provided that the relative permeability µ r  >> 1, then the magnetic flux lines will s

see figure on this link: http://tinypic.com/r/1zodevk/8. A. j400 I1-j1200 I2 (A) B. -j400 I1+j1600 I2 (A) C. j400 I1+j400 I2 (A) D. -j400 I1-j400 I2 (A)

What is Q-switching in laser ? Give its application. Discuss the elementary idea of mode locking. Generation of high power pulses There are three basic techniques to gene

why we rotate the armature of dc motor in anticlockwise direction