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RC Filter Analysis
Let the following circuit:I was looking at some old youtube videos, explaining how obscure this simple looking circuit, here is my question, suppose that the AC voltage source \$ v_i(t) = A \sin(\omega...
View ArticleSecond-order Band-Pass Filter Gain Confusion
If I derive the equation for a bandpass filter (in this case, critically damped) from the RLC transfer function, I get a different result than I would get otherwise by combining the transfer functions...
View ArticleDesigning a Passive Filter Circuit in Foster and Cauer Forms [closed]
The task is to find the transfer function of any passive filter circuit and design it in Foster and Cauer forms. How can I derive this transfer function, and what steps should I follow once I have it?
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How to determine the transform function of certain bode plots?
The answer to this question above is C, yet I only know that the anti-resonance and resonance are located at 8 and 11 Hz respectively.Another example below to which the answer is B.I appreciate any...
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The transfer function of an RC band-pass filter circuit
simulate this circuit– Schematic created using CircuitLabI want to find the transfer function of the circuit shown in the diagram, ignoring its parameters. The transfer function I derived on my own is...
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How to identify parametric model of a buck converter?
I have a buck dc-dc converterMy goal is to identify a dynamic model of this circuit. The model shall serve for design of the inductor current control loop. Until this moment I thought the model in...
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Transfer function, zeros and poles of the circuit
I am trying to determine the transfer function $$H(s)=v_{OUT}(s)/v_{in}(s)$$, zeros and poles of the transfer function of the above circuit.From the obtained form of the transfer function H(s) as the...
View ArticleImpact of Input Capacitor on the Derivation of the Small-Signal Model of the...
I have been studying the control methods of DC/DC power converters over the past couple of weeks and am confused on how the addition of an input capacitor affects the small-signal model of the...
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Disturbance error transfer function
I was trying to solve some examples from the book Feedback Control of Dynamic Systems by Franklin, Powell & Emami-Naemi. (Seventh Edition, Pages 195 & 204) about PID controllers. The problem is...
View ArticleRepresentation of Photovoltaic cell and BESS in Microgrid by first order...
I am working in the are of frequency control of Microgrid and have come across many publications (For example: https://www.sciencedirect.com/science/article/abs/pii/S0142061515005220 (Pg 3,5)), wherein...
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Find a model with transfer function and real data
I am currently trying to create a model using a transfer function and my data. Here is my schematic:Here is my transfer function:My input signal is 2.5V for 10s, after which I decrease the voltage to...
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Why do these two voltage-to-torque methods behave so differently for my DC...
As my first real Simulink project, I'm making a reaction-wheel stabilizer. I'm using Simscape Multibody and Model Linearizer to control the motor with a linear quadratic regulator and the motor voltage...
View ArticleDeriving a Chebyshev lowpass filter from a transfer function
I want to determine the values of the Chebyshev filter having the following transfer function.$$H(s)=\dfrac{0.0626}{(s^2+0.1098s+0.936)(s^2+0.2873s+0.377)(s+0.1775)}$$My initial road map on this...
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How do I find the transfer function of a PID that uses a single op-amp?
How does one go about finding the transfer function of the following op-amp PID?I have tried to convert each component of the circuit into its transfer function representations, e.g., making each...
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How should I apply FACT technique on this circuit?
I am learning the fast analytical circuit technique. How could I calculate the pole in the circuit below? I also calculated in the "traditional" way.I was able to determine the zero and the static...
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How does the Fast Lane create a zero in the transfer function?
I am analyzing the effect of the Fast Lane through an operational amplifier circuit. It seems as though the Fast Lane creates a zero, but I am not entirely sure about this.If the output impedance of...
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ADuM3190 Transfer Function
The ADuM3190 seems like a good alternative to the TL431+opto solution. However, I would need to know its complete transfer function for proper use. The datasheet doesn’t explicitly include this, but...
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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...
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Calculating explicit transfer function for two diode voltage dividers
I'm seeking to write explicit, non-approximated voltage transfer functions for some diode voltage dividers. Ideally, I want to obtain \$V_{out}\$ purely as a function of \$V_{in}\$ without using...
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What is the recommended minimum DC gain for isolated switching power supplies?
I am studying one of Christophe Basso's excellent articles, where he describes the transfer function of the TL431 error amplifier in a Type II configuration (No Fast Lane configuration):$$|H(s)|=CTR...
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