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Analog System Lab Kit PRO

Simulatetheintegratoranddierentiatorandobtainthetransientresponse

and phase response.

Take the plots of transient response and phase response on an oscilloscope

and compare it with simulation results.

3.4 What should you submit

experiment 3

Frequency Response - Apply a sine wave to the integrator (similarly to the

dierentiator)andvarytheinputfrequencytoobtainphaseandmagnitude

error. Prepare a Table of the form 3.1. Figure 3.3 shows the typical frequency

responseforintegratorsanddierentiators.Foranintegrator,theplotshows

a phase lag which is proportional to

AGBs

sCR

sRC

GB RC$

. The magnitude decreases with

increasingfrequency.Forthedierentiator,thephasewillchangerapidlyat

natural frequency in direct proportion to quality factor. The magnitude peaks

at natural frequency and is directly proportional to the quality factor.

Table 3.1: Plot of Magnitude and Phase w.r.t. Input Frequency

Table 3.2: Plot of Magnitude and Phase w.r.t. Input Frequency

Figure 3.3: Frequency Response of integrator and dierentiator

S. No. Input Frequency Magnitude Phase

Transient response - Apply the square wave as an input to integrator, vary

the peak amplitude of the square wave and obtain the peak to peak value

of output wave.

AGBs

sCR

sRC

GB RC$

is directly proportional to peak voltage of input

AGBs

sCR

sRC

GB RC$

and is

given by

AGBs

sCR

sRC

GB RC$

, where

AGBs

sCR

sRC

GB RC$

AGBs

sCR

sRC

GB RC$

being the input frequency.

Figure 3.4 shows sample output waveforms obtained through simulation.

Table 3.3: Variation of Peak to Peak value of

output w.r.t. Peak value of Input

S. No. Peak Value of input Vp Peak to Peak value of output