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Questions tagged [admittance]

13 questions
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Converting Admittance Matrix of a 3x3 Circuit to Y Matrix of Two-Port Network

I came across an exercise that asks you to find the \$Y\$ matrix of a two-port network. It's not a difficult question, and there are two methods that I can see to solve it. The first method is to use the definition of Y parameters. The second…
internet
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Common term for Resistance and Conductance?

Simple question; Impedance and Admittance are complementary quantities, and can be described by the common term "Immittance". Likewise Resistance and Conductance are complimentary quantities, do we have a word to describe both of these, like…
Vinzent
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Mutual inductive coupling in a nodal admittance matrix

I have this question that has been haunting for quite a while now. To compute the nodal admittance matrix \$Y_N\$ of an electrical network, one can make use of the incidence matrix and the branch (or edge) admittance matrix. However, in the case of…
Wallflower
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Transmission Bus Admittance Question

I have a question about calculating the admittance between buses in the single line diagram shown below: The solution I have been given shows that the admittance between bus 2-2 is found by adding the admittance between bus 2-5 and bus 2-4. Is this…
David777
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Why must we turn the admittance into Y matrix, then turn the Y matrix into Z matrix before we calculate the fault current?

The one-line diagram is as below,and a three-phase fault has occurred in the bus 1,now find the fault current \begin{align} …
user16266657
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Why does the normalized input admittance have to be 1 +j0 to achieve matched condition at MM'?

In section 2.11.1 in the book Fundamentals of Applied Electromagnets by Fawwaz T. Ulaby, it says that in order for the circuit below to be matched at MM', y-in must be y-in = 1+ j0. Why is this so? How does this admittance value ensure that y-in =…
papij
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Admittance matrix when switch is open

In the following there is an example of an admittance matrix. https://en.m.wikipedia.org/wiki/Nodal_admittance_matrix If y13 had a switch and it is open, what happens to the admittance matrix? Thanks
Tims
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Extract the nodal admittance matrix of a given circuit in LTspice

I am wondering if there is a way to extract the Nodal admittance matrix of a very complicated circuit using LTspice. Like draw the circuit or automatically generate a netlist (in the case of a very complicated circuit -using python for instance-)…
Wallflower
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Conductance and resistance of an acoustic transducer

I have the conductance and susceptance vs. grequency data on an acoustic transducer. Also mentioned is the resonant resistance and resonant capacitance which is just the inverse of the conductance and susceptance value at the resonance…
pp123
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Two resonances in the admittance of capacitor C

I have this question that has been haunting me for a week now. I was given a measurement file of a previous student. Allegedly, they are the measurements of the admittance of a circuit that is supposed to behave as an capacitive circuit. When I plot…
Wallflower
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Components in the circuit based on admittance (in complex form)

My Question I have an admittance in complex form for a circuit. Is it possible to know what components are in the circuit based on the admittance? How do I calculate it?
August Jelemson
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Oscillations in parallel-RLC network with a limiting VCCS

Here is a parallel-RLC network (where G = 1/R is the admittance) with a limiting VCCS. The characteristic of the VCCS is shown in Fig (b), where the slope is G1. The problem asked is as follows: Find the condition on slope of the VCCS for…
SacredMechanic
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Two-port network parameter measurement using an LCR meter

I was wondering if it's possible to find the admittance parameters of a pi two-port network experimentally using an LCR meter. For the network shown below, we have $$ \begin{bmatrix} I1\\ I2 \end{bmatrix} = \begin{bmatrix} Y1 + Y2 & -Y1\\ -Y1 & Y1 +…
Likely
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