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A Bode plot, named after
Dr. Bode, is the name given to a log-log plot of the frequency response of a continuaus
time system. So then what's a frequency response?
It describes the steady-slate response of a system to a
sinusoid of a particular frequency. Recall that a sinusoidal function (complex exponential) is an eigenfunction
ofa
CT system, meaning if ei"'' goes in, Kei"'' comes out, where Kis acomplex number. A Bodeplot is simply
a graph of
K vs. ro. Since K is complex, we will have to represent the frequency response as two sub-graphs. We
could plot the real part and imaginary part separately, but it is much more intuitive to plot things as magnitude
and phase versus
ro. You can see this by rewriting K as Ael+. The outpul then becomes Aei<"'t+$J,which has
the sarne frequency as the input, but with a possible change in magnitude and phase of the sinusoid. In other
words, sin
(cot) -+ Asin ( cot+ •). Therefore, a Bodeplot is simply a graph of A vs. co and
Pieasenote that things
are plotted versus co (radians/sec) notf (Hertz or cycles/sec). If needed, the conversion
is
co = 2nf.
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Bode Plot Is applicable to minimum phase network or non minimum phase network?
minimum phase network
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cos it's a plot it needs to be called a plot
Why do you need to draw a bode plot?
I don’t know
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polar plots are those in which magnitude and phase are drawn together in a figure by varying the frequency(unit generally radians per sec or otherwise hertz). bode plot is the one in which 20 log(magnitudde) and phase are plotted with respect to frequncy. DURGESH PAREVA DELHI INDIA
Bode Plot Is applicable to minimum phase network or non minimum phase network?
minimum phase network
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The address of the Bode Public Library is: 114 Humboldt Ave, Bode, 50519 0122
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