**Unformatted text preview: **Term Magnitude Constant: K 20'091o('K') E?) 0:180" Pole at Origin (Integrator) l
5 Zero at Origin (Differentiator) 3
Real Pole Underdamped Poles (Complex conjugate poles) -2O dB/decade passing through 0 dB at m=1 +20 dB/decade passing through 0 dB at «3:1
(Mirror image of Integrator about 0 dB) . Draw low frequency asymptote at 0 dB
. Draw high frequency asymptote at -20 dB/decade
. Connect lines at mo. . Draw low frequency asymptote at 0 dB
. Draw high frequency asymptote at +20 dB/decade
. Connect lines at mo. (Mirror image of Real Pole about 0 dB) . Draw low frequency asymptote at 0 dB
. Draw high frequency asymptote at -40 dB/decade
. If :<0.5, then draw peak at mo with amplitude lHﬁmo)l=-20-Iog1o(2l:), else don't draw peak . Connect lines +90°
(Mirror image of integrator about 0") . Draw low frequency asymptote at 0°
. Draw high frequency asymptote at -90°
. Connect with a straight line from 0.1 ~mo to 10-mo . Draw low frequency asymptote at 0°
. Draw high frequency asymptote at +90“
. Connect with a straight line from 0.1 ~mo to 10-mo (Mirror image of Fteal Pole about 0") . Draw low frequency asymptote at 0°
. Draw high frequency asymptote at -180° . Connect with straight line from co . “—9 to coo —10§ 10E You can also look in a textbook for examples Underdamped Zeros 1. Draw low frequency asymptote at 0° - Draw '0‘” frequency asymptote 3‘ 0 dB 2. Draw high frequency asymptote at +180“ 1
(Complex conlugate zeros) 2. Draw high frequency asymptote at +40 dB/decade
3. If :<0.5, then draw peak at mo with amplitude 3. Connect with straight line from at - (”—9 to coo -10‘;
|H(jmo)|=+20-|og1o(2ﬁ), else don't draw peak 105
4. Connect lines You can also look in a textbook for examples. (Mirror image of Underdamped Pole about 0 dB) (Mirror image of Underdamped Pole about 0") ...

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