UNIT IV

FEEDBACK AMPLIFIERS : 
Concept of feedback, Classification of feedback amplifiers, General characteristics of negative feedback amplifiers, Effect of Feedback on input and output impedance, Voltage Series, Voltage Shunt, Current Series, and Current Shunt feedback amplifiers with discrete components and their analysis.

REFERENCE BOOKS :

1.       Integrated Electronics – J. Millman and C.C. Halkias, McGraw-Hill, 1972.
2.       Micro Electronic Circuits – Sedra A.S. and K.C. Smith, Oxford University Press, 5th ed.
3.       Electronic Devices and Circuits - Theodore F. Bogart Jr., J. S. Beasley and G. Rico, Pearson  
          Edition,  6th Edition, 2004.
4.       Electronic Circuit Analysis and Design – Donald A. Neaman, McGraw Hill  


LECTURE  NOTES :




ASSIGNMENT - I (Theory) :



ASSIGNMENT - II (Problems) :



Previous JNTU Questions :

1. If negative feedback with a feedback factor, β of 0.01 is introduced into an amplifier with a
    gain of 200 and bandwidth of 6 MHz, obtain the resulting bandwidth of the feedback amplifier.

2. With the help of a suitable BJT based voltage series feedback amplifier diagram, explain the features and benefits of negative feedback in amplifiers.

3. Draw the circuit of a voltage series feedback circuit and explain it.

4. What are the possible amplifiers circuits in any feedback system?  Discuss.

5.  








Previous GATE Questions :