# Questions tagged [damping-factor]

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14 questions
0answers
43 views

### High voltage pulse discharge ring dampening (how to save a pulse capacitor)

So I have a high voltage pulse circuit. I have planned it to be around 90kv with the capacitor being 1.3uF. It is to be discharged through a spark gap. Before I test it, I of course want to save the ...
1answer
38 views

### if settling time is smaller for underdamped case then why we call it underdamped - parallel rlc circuits?

Does less settling time means that the response dies out quickly? If so the settling time for a just correct Resistance such that the circuit is slightly underdamped is least, then it's most damped(...
1answer
109 views

### Calculating the damping ratio, $\zeta$, and the undamped natural frequency, $\omega_0$

I'm confused on where I went wrong finding $\zeta$ (zeta) and $\omega_0$. I think its where I originally did nodal at Avx. Any help would be appreciated. -thanks
2answers
188 views

### How to experimentally measure damping in RLC circuits?

I know there are methods to theoretically determine the damping factor and quality factor in RLC circuits. Equations such as $$\zeta = \frac{R_s}{2} \sqrt{\frac{C}{L}}$$ $$Q = \frac{1}{2\zeta}$$ ...
1answer
63 views

### Trying to understand the magic the author of this PDF did explaining the critically damped equation

I am reading this doc about the equations for the step function for the RLC circuit, critically damped solution. At page 16 we have these lines... But there is a magic between these lines... How ...
2answers
54 views

### Trying to understand the critically damped equations of a RLC circuit

I am trying to understand the equations of the critically damped equations of a RLC circuit here I see this part on page 16 The part I do not understand is this one: How can part of the equation be ...
2answers
2k views

### How to find damping ratio of a 4th order system?

For example in this 4th order transfer function how the damping ratio would be calculated? in fact I` m encountered with this problem: If I didnt realize the concept of problem plz guide me: problem:...
4answers
881 views

### Damping factor - How to get to these circuits

Do RL and RC circuits have a damping factor? If so, what would be the expression. Because I know what RLC circuits have, but these others I do not know Thank you!
3answers
6k views

### over and critically damped systems settling time

I know that for second order systems the settling time(St) equation is: So my question is, should this same formula be used when the system is over or critically damped? Is it right to use it in that ...
1answer
114 views

### how can I calculate the cutoff frequency for this low pass filter?

simulate this circuit – Schematic created using CircuitLab
1answer
5k views

### Mechanical Model of DC Motor - Damping Coefficient Problem

I'm trying to develop a mathematical model for a small brushed DC motor that I own. I've been collecting test data for motor parameter identification, and have everything but the damping coefficient ...
0answers
134 views

### Fastest way to find R value for RLC under/over/critically damped? [duplicate]

If I have a known square wave source, known capacitor value and known inductor value, what is the fastest way to figure out what the resistor value has to be to make the circuit overdamped, ...
2answers
218 views

### Are overdamped rise waveforms really “curvier”? Or is that just time scale?

Do the rising waveforms for overdamped circuits of different $\zeta >= 1$ actually have a different "curviness"? Or does it just look that way because they're all shown on the same time scale? ...
2answers
7k views

### Phase Margin and Damping Ratio Approximation

I have read in many texts that the closed loop system damping factor can be approximated as: $\Phi_m= 100 * \zeta$ With $\Phi_m$ as the phase margin and $\zeta$ as the damping ratio. The ...