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How to find transfer function from a graph
I need help to find the transfer function of the system from this input/output graph:
View ArticleBreak in and break away point
Consider the open loop transfer function of \$\frac K{s^3+2s^2+2s}\$.In a negative feedback system, that has three poles \$0, -1+i ,-1-i\$.Is there any break-in or break-away point because only one...
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Transfer function mesh analysis
I am stuck with this problem. I simplified my answers using Mathway, and the answer in the book is different. Any help will be appreciated.My solution:I also don't understand how the book is able to...
View Articletrasfer function [closed]
find the transfer function of the circuit belowConsider a circuit with an impedance connected in series to two parallel impedances. The circuit is powered by a 230V, 50Hz supply. Each impedance has a...
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What exactly changes at closed loop transfer function, when circuit move from...
I have hard time to understand what exactly changes in close loop transfer function when it goes from ccm to dcm.When we close loop, blocks which signals goes through are:A(s) LC post filter with load...
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Passive filter design from transfer function
I would like to implement a passive RIAA filter circuit. This is the bode plot of a RIAA equalizer.The transfer function of this:H(jw) = (jwT1 + 1)/[(jwT2 + 1)(jwT3 + 1)] where time constants are...
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Analog Compensator Vs digital Compensator in Power electronics Converter
I was working on designing a feedback compensator for my buck converter. I decided to use the compensator circuit in the feedback and give its output to Arduino which gives the duty cycle as shown...
View ArticleFinding coefficients for a PID controller that minimize the integral of the...
The problemThe problem is to find the coefficients for the P, I and D terms of a PID controller used to regulate the object that minimize the the integral of the squared error (ISE):$$Q = \int_0^\infty...
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Finding poles and zeroes for circuit driven by current source
I saw this post recently.I had a query regarding question 1 and how FACTs can be used in the case of current source driving a circuit:First, I set the current source to zero which is an open...
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First order system transfer function
Suppose we have the transfer function written in the picture. The circuit from which this transfer function was derived is a classic RC circuit with an Rload (Rload parallel to the capacitor).I have...
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Setting 'H' in the Chebyshev approximation
For the Chebyshev approximation, \$ \frac{V_0}{V_{in}} = \frac {h}{D_n(s)} \$, and I was wondering how you actually set \$h\$. I know that \$h\$ is chosen to so that:\$ \frac{V_0}{V_{in}} = 1 \$ for...
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Negative phase margin and misconception of the point of instability in...
PreludeConsider a canonical block diagram of a negative feedback loop with gain \$K\$, plant transfer function \$G(s)\$ and feedback transfer function \$H(s)\$: -Regardless of what functions K, G, and...
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Parallel RC circuit differential equation for a mechanical engineer
For a mechanical engineering course in controls, I was asked toWrite the differential equation, state equation, and transfer function for this circuitThat's the full text of the problem, and the...
View ArticleIs every linear circuit equivalent to a single RLC series circuit?
Is every linear circuit equivalent to a single series RLC circuit? If not, can one determine from the transfer function of the linear circuit whether or not it is equivalent to a single series RLC...
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How are equations (transfer functions) and the uncertainties for sensors found?
Does anyone have a good: book / link / resource which describes from the ground up how to find an equation / transfer function and the accompanying uncertainties for sensors?I am looking for references...
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Plotting the bode plot of a high pass filter using matlab
I am trying to theoretically find the frequency response of the circuit given below:Firstly i found the impedance value of the RC Ladder by applying the equation below, then i defined this as "Z" in my...
View ArticleOscillation criterium of UcD (Universal Class D) amplifier
This Paper written by Bruno Putzeys describes the operation of an Ncore/UcD amplifier.On page 2 the author presents the following formula, which he previously used to determine the approximate...
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Why is inverse of a transfer function not really a correct way to think while...
When we try to predict the circuit behaviour using transfer function, everything works fine in forward direction (Vin to Vout).But if we try to predict the circuit behaviour in reverse direction (Vout...
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Transfer function of an RC circuit
I'm trying to find the transfer function of the circuit below. I am aware there are tutorials available online for similar circuits, and I have tried them. But I cannot confirm whether my answer for...
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Is it possible to simulate reflections by designing an RLC transfer function?
Assume that you're knowing the PCB stack and the geometry of the conductor.You're computing the capacitance per mm and inductance per mm and also the total resistance of the conductor.That means you...
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