03/03/2020

Differentiator - Integrator Circuit Interview Question Answer


1
What do you mean by differentiate circuit?


Differentiate circuit
  • It is circuit in which the output is directly proportional to differentiation of the input waveform.


2
What should be condition to be satisfied for differentiate circuit?


Necessary condition for differentiate circuit
  • The capacitive reactance should be 10 or more times than the resistance at the operating frequency. 
  • The time period of the input waveform should be more than the time constant of the RC circuit.


3
What is output of the differentiate circuit for the following input? DC, Sinusoidal waveform, Square waveform, Triangular waveform.


Input – Output
DC – Zero
Sinusoidal waveform – Cosine waveform
Square waveform – Sharp narrow pulses
Triangular waveform – Rectangular waveform

4
What do you mean by the integrating circuit?


Integrating circuit
  • It is circuit in which the output is directly proportional to integral of the input waveform.


5
What should be condition to be satisfied for integrating circuit?


Necessary condition for integrating circuit
  • The value of the resistance should be 10 or more times than the capacitive reactance at the operating frequency. 
  •  The time period of the input waveform should be very small than the time constant of the RC circuit.


6
What is output of the integrating circuit for the following input? Sinusoidal waveform,  Rectangular waveform, Square waveform


Input – Output
Sinusoidal – Cosine
Rectangular – Triangular
Square – Triangular





























































































































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