Questions tagged [pole-zeroplot]
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72 questions
0 votes
4 answers
177 views
Having trouble understanding the stability of following system
So I have the following transfer function where Kvp=0.15, and Kvi=1. This is open loop gain. The bode plot is as follows: For unity feedback system (loop gain equal to open loop gain) although at 0 dB ...
1 vote
1 answer
194 views
How to obtain the pole zero map and step response of the 2nd order system and determine the mode of damping in the system using MATLAB?
$$\frac{C(s)}{R(s)}=\frac{\omega_n^2}{s^2+2\zeta \omega_n s+\omega_n^2}$$ Obtain the pole zero map and step response of the 2nd order system and determine the mode of damping in the system. If the ...
- 55
4 votes
2 answers
572 views
Poles of system seem counter intuitive
I have a system with the three poles 0+8i, 0-8i, and -0.5. When I input a sinusoidal signal, this is the output: Based on the poles, -0.5 is in the left side of the plane so it should be stable. +8i ...
- 75
1 vote
3 answers
342 views
How do I derive a transfer function of RC circuit including ESR?
I am reading through some lecture and wondering how to derive transfer function when input source is a current source. Can you anyone give me an advice? Thank you
- 25
2 votes
0 answers
71 views
Continuous Time LTI system stability confusion
It is understood that if ROC of the transfer function of a system doesn’t not contain the \$j\omega\$ axis, then the system is unstable. I also know that if the transfer function of the system has any ...
- 223
0 votes
2 answers
230 views
Determining poles and zeros from those of interconnected two-port networks
My goal is to find the poles and zeros of a large network. Specifically a cascade connection of series C's and shunt L's. One could also consider this a CL Ladder circuit. I am interested in ...
- 1
0 votes
2 answers
775 views
Pole location in simple RC circuit
Could someone help me to find the pole expression in the circuit shared below? The expression of the zero is: (Wz=-1/(R8*C2)), but I'm unable to find the pole location due to R8 (without it I would be ...
- 357
0 votes
1 answer
523 views
Why a series resistor on the output of an op amp would add a zero
Capacitance on the output of an op amp I was looking at this post and I totally understand except the answer said that the series resistance at the output of the op amp is creating a pole and a zero. ...
- 33
1 vote
0 answers
224 views
What is Byrnes-Isidori form and why is it usefu?
I was reading a paper about analysis of "Zero Dynamics" of a system but they initially converted the state-space model of the system into a "Byrnes-Isidori normal" form. What is ...
- 111
0 votes
0 answers
87 views
What is Zero Dynamics of a system?
I am trying to understand Zero Dynamic attack(ZDA) on a system, but for that I am confused what exactly is ‘’’Zero dynamics of a system’’’. Is it the state of a system at one of its zeroes or ...
- 111
1 vote
1 answer
195 views
Pole Splitting - Why does output pole not also decrease to lower frequency?
Miller's Theorem Application This is a follow-on question. I have a question regarding pole Splitting. If there was an existing capacitor on node E and on node A, I often see that books say that ...
- 3,311
0 votes
3 answers
600 views
Poles of a second-order closed-loop transfer function
I was reading about the effects of poles and zeroes of a second-order transfer function on its time response and it was said that the real part of the pole of transfer function gives the exponential ...
- 57
1 vote
2 answers
504 views
Bode plot from s-domain singularities
Considering any transfer function H(s), is there any meaningful way to use the s-variable singularities to obtain the f-variable ones to trace the Bode plot? I know direct conversion with \$ s = \...
1 vote
1 answer
764 views
Relation of Eigenvalues with poles and zeros
I have modeled a system showing the following properties. It has some negative eigenvalues. All poles are placed in a left-half plane. Some zeros are right-half plane. In my knowledge, eigenvalues ...
- 31
0 votes
1 answer
209 views
Unclear relationship between s domain and frequency domain
I’m trying to brush up on some things I left behind, let’s consider the usual RC parallel circuit, I’m trying to get the bode plot of its impedance. The equivalent impedance is obviously \$ Z = \frac{...
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