Connect with us

Understanding magnitude and phase Bode plots.

Discussion in 'Electronics Homework Help' started by paris, Sep 15, 2012.

  1. paris

    paris

    2
    0
    Sep 15, 2012
    I'm having problems understanding Bode plots. I've been studying from this website:

    http://lpsa.swarthmore.edu/Bode/BodeExamples.html

    And I understood the concept of poles, zeros, increasing at 20dB/decade, transfer functions, etc etc.. What I don't understand (taken Example 3) is how to draw the final construction of the these bode plots.. In the case of the magnitude plot of what I understood, isn't the final plot supposed to begin at 30dB, decrease to 20dB, decrease again to 0dB at real pole at -3 and increase at real zero at -10? However, I don't get why does the exact plot begins before 40dB and continues to decrease past the real pole at -3..

    The same goes for the phase plot. I understood how to construct the plots according to each pole and zero, but I don't understand how to get to the final plot at the end. I hope I make some sense and I hope someone could help me clear some of my doubts.

    Thank you in advance! :)
     
  2. paris

    paris

    2
    0
    Sep 15, 2012
    TYPO:

    *continues to decrease past the real zero at -10..
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-