This tag covers finding models for electrical and electronic components and circuits
-2
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3answers
82 views
What is the radio models distance limit?
From how far could be a flying machine operated from a static station?
What is the physical limit? 1km ? 5km? or 10km?
Is the only problem of creating "drones" operated from your appartment the ...
0
votes
1answer
102 views
Simulation software to terminate planar waveguides by geometry and material choice?
There are a lot of electromagnetics software modeling suites out there (HFSS, CST Microwave, Sonnet some I've heard of).
I want to terminate a coplanar GS or GSG waveguide with 50 ohm. I know that ...
1
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0answers
147 views
Z(in) for small signal analysis with BJT for unbypassed emitter and r0 in place
I have been studying the small signal analysis of BJT with re model with the emitter terminal not bypassed. I am able to derive those Zi, Zo,Av, Ai long as ro is assumed to be infinite. But I am ...
0
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1answer
301 views
Spice model, can't figure it out
I am using LTSpice with the following NMOS model from the library included in the famous book 'Sedra & Smith, Microelectronic circuits' :
...
0
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3answers
139 views
Directional pickup of human ear?
Given the following:
x, y, z of omnidirectional source source
x, y, z of center of listener's head
pitch, roll, yaw of head
What is a simple fuction that will return the decibel attenuation and ...
1
vote
2answers
374 views
How do I construct a SPICE model from a data-sheet?
This may not be the ideal forum for the question; please migrate if a forum is better suited for the question.
I'm looking at a component for which my attempts at locating a SPICE model online were ...
1
vote
0answers
156 views
Matlab (fdesign.arbgrpdelay, fdatool) Group delay
I have the measurements of filter’s Group delay and S-parameters.
The S-parameters are of the following form presented in a touchstone file
...
4
votes
1answer
185 views
Modelling MEMS accelerometer's measurement noise using datasheet (ADXL330)
I'd like to model an Analog Devices ADXL330 MEMS accelerometer using data provided in its datasheet to estimate measurement noise. I'm using a simple mathematical model defined in the paper ...
2
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1answer
182 views
Understanding the OSI Model
I'm currently documenting a wireless, microcontroller-based system that I've built and I would like to use the standard industry terminology to help anyone who comes behind me comprehend it easier. ...
2
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1answer
358 views
Brushless motor controlled via current source math model
I'd like to model a brushless motor's (BLDC) dynamic response using Matlab. I'm controlling the motor by an Elesctonic Speed Controller (ESC). I'd like to derive a transfer function of such a circuit ...
1
vote
0answers
206 views
Modeling Power MOSFET with Matlab
I decided to give SimPowerSystems in Matlab a try. My problem is that I find the notation quite confusing, it seems rather different from the one usually found in data sheets. Take for instance this ...
1
vote
0answers
231 views
Bridge Rectifier Average Value Modeling
I had previously posted a question regarding modeling the transfer function of a diode rectifier but it sounds like this not possible.
So I have done some reading on "Average Value Modeling" and it ...
2
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2answers
409 views
Trying to simulate a PWM model of a boost converter in gnucap
There's a paper called "Simplified Analysis of PWM Converters Using Model of PWM Switch (part 1)" by Vatché Vorpérian which introduces a "PWM switch" to model the switch and diode in a switching ...
2
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4answers
378 views
Can the Ids equation of MOSFETs be applied to real devices?
In my engineering course, we have studied MOSFETs a lot, and always in the context of integrated circuits. And what we have been teached is that (in the basic approximation), its current is given by ...
11
votes
1answer
375 views
Mathematical models for vacuum tubes?
Are there any commonly accepted algebraic models for vacuum tube operation (triode, tetrode, and pentode)? In the same way that BJTs have a Gummel-Poon or Ebers-Moll model, and (macroscale) MOSFETs ...
3
votes
1answer
283 views
Antenna modeling software and tutorials
I'm starting to learn about antenna theory, feedlines, and different types of matching. I can build antennas etc from plans but I would like to be able to design my own and understand their ...
2
votes
2answers
258 views
State diagram Implementation
I am trying to develop a state machine model for my current firmware design. I searched google, but the explanations are not related to embedded system. Can you please suggest some method to study ...
