Questions tagged [modeling]
This tag covers finding models for electrical and electronic components and circuits
283
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What would be the best small signal model to the following LF RFID circuit?
I'm trying to analyse a LF RFID circuit's antenna of a TMS3705 base station using simulation. I want to estimate the frequency response and the Q factor. The intention is to do it for two different ...
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State space model of a PWM driven circuit
I am trying to write down the state space model of the circuit given below:
As it can be seen above, a P channel mosfet transistor is driven by a PWM signal. I am trying to model the circuit ...
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Mathematical function a of an integrator in series with a non inverting op amp
I am trying to understand the circuit given below so I can make a mathematical model of it.
The circuit consists of an integrator with a reference (offset) voltage and a non inverting op amp ...
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Cannot obtain a generalized state space averaged model for simple wireless power transfer system
this is the first time I ask a question. I am currently working on finding a state space model of the following system :
where \$U_i\$ is a square wave of amplitude \$U_{in}\$.
This circuit ...
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Modelling Biased APD In Integrator Circuit
I want to model a biased APD (Avalanche Photodiode) whose current output feeds into an integrator. For the IC I will be using, TI recommends the following configuration for an unbiased photodiode.
...
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Photodiode Modelling
I want to model an Avalanche Photodiode (APD) in LTSpice. Is the below an appropriate representation?:
simulate this circuit – Schematic created using CircuitLab
If so, why is the diode ...
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Typical parasitics values of thick film SMD resistor
I'm looking for values of parasitics for SMD thick thilm resistors (the cheap and readily available). Values of the following model
Closest I found is this application note from Vishay, but it is for ...
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How lossy is a ferrite bead in its "capacitive" regime?
When using ferrite beads in spice, I often have the impression that they are not lossy enough compared to the real thing. In particular, the conventional model of RLC all in parallel is basically a ...
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What is the difference between large signal model/analysis and dc model/analysis? [closed]
I am studying microelectronics. I have studied about the DC analysis and the AC analysis. The DC analysis is just to find the operating point or the quiescent point and then the AC analysis is done. ...
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Circuitlab - How can I create my own transistor model?
I would like to create some transistors, like the S8050 transistor, for to use in CircuitLab.
What I found is https://www.circuitlab.com/docs/custom-device-models/
If I open another existing ...
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142
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How does current flow in this circuit with multiple power regulators?
I have the following circuit:
simulate this circuit – Schematic created using CircuitLab
U1 contains two voltage regulators (Vo1=+10V, Vo2=-10V, input Vin=5V). (These could be buck, boost etc. ...
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Diode Stack SPICE Modeling
When I model a 7 diode stack in SPICE (LTSPICE or core Smartspice within Silvaco TCAD) the standard level 1 'Berkeley' model works, but the Philips model fails. The Philips diode model (see Smartspice ...
- 21
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2
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255
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Can I increase the inductive component stored-energy of a Piezo Buzzer?
In this example of a model for a piezo element, there is an inductive component (I think this is a quartz crystal model -- it should not matter for the question. This graphic was also used here and ...
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Correct block diagram of differential equation
I am studying modeling and simulation. I have to draw a block diagram (so that it gets simulated in Simulink) of the following differential equation
$$ \frac{d^2 y}{dt^2}=-a_1\frac{d y}{dt}-a_2y+a_2u$$...
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How to transform the state space model of the induction motor?
First of all I would like to apologize if I have chosen wrong forum. My question is related to the electrical engineering but basically it is a mathematical problem.
I have the state space model of ...
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