How to draw Bode Plot | Solved Example

By Anonymous -



Bode plot has two parts- gain plot and phase plot. We will learn how to plot bode plot step-by-step by using a solved example. Just be patient.

Bode gain plot:-  is a plot of   20 log10 |G(jw)|  ( db) against frequency  w(rad/sec)  on a semilog paper. The frequency is plotted on horizontal  log scale and gain on vertical linear scale.

Step-1 :- obtain the open-loop transfer function (OLTF) of the control system under consideration. Let the OLTF be


If we add all the plotted individual plots, we get bode gain plot for   given transfer function. The complete bode gain plot is given below.








Bode Phase plot :- is a plot of ∠G(jw) against the frequency w(rad/sec.) on a semilog paper. The frequency is plotted on log scale and phase on    vertical linear scale.  































Related :-
   (1)  Gain and Phase cross-over frequency | Gain and Phase Margin 

You may like :-
  (1) Boost Converter
  (2) Buck Converter
  (3) Buck Boost Converter
  (4) Unijunction Transistor (UJT)

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