LTspice tutorial – simulating Frequency Dependent component Parameters

#216 In this tutorial episode I look at how components can be modeled to have frequency dependent parameters. I first analyze the way in which the basic passive components – the resistor, capacitor and inductor can be modeled using G-sources with the Laplace function, and then I look at how the values can be made frequency dependent.

Further reading:
https://www.analog.com/en/resources/technical-articles/model-transfer-functions-by-applying-the-laplace-transform-in-ltspice.html
https://www.eeeguide.com/s-domain/
https://www.coilcraft.com/en-us/models/howto/using-coilcrafts-models-in-ltspice/

More LTspice tutorials:
EP1-Getting started:
https://youtu.be/JRcyHuyb1V0
EP2-AC simulation and the Baxandall tone control circuit:
https://youtu.be/P_ENvucaZkI
EP3-.param and .step directives:
https://youtu.be/ARE5nwiHI0Q
EP4-How to import libraries and component models: https://youtu.be/8V5XabccFaE
Ep5- Stock example simulations to play with: https://youtu.be/MwfeMjcM4zY
Ep6- Basics of FFT analysis and .four statment: https://youtu.be/rVAvW1Jh2AE
EP7- Dependent voltage and current sources
https://youtu.be/Jn8mJG3qeoo
Ep8- Turning a datasheet into a component model
https://youtu.be/0smuo8bMRn4
EP9- Independent voltage and current sources
https://youtu.be/nPZ7vneN3v8
Ep10- .wave statement and audio file processing
https://youtu.be/mdJm-TzrBsA
Ep11 The effect of temperature on your circuit
https://youtu.be/VzxnNrOMcMo
EP12 Modeling a DC brushed motor
https://youtu.be/Wc4XzTrWSpo
Ep13- Worst Case, Monte Carlo and Gaussian statistics circuit analysis
https://youtu.be/NdGqboW2VcY
EP14 - Digital circuits and logic gates https://youtu.be/JttE2NObDPM
EP15- SMPS EMI and electrical noise and filters
https://youtu.be/QEAzcaiBrpY
EP16- Feedback loop simulation
https://youtu.be/X4yaBwaO1gk
Ep17 - Verifying Simulation Models
https://youtu.be/DSDiIkKQaAE
Ep18 - Simulating Capacitors
https://youtu.be/QpWPTolhfEo
Ep 19 - Simulating Inductors
https://youtu.be/65fNDRows90
EP 20 - Noise simulations
https://youtu.be/Dh5XmFXlljI
Ep21 - Models and Libraries
https://youtu.be/GUFMfSlD2AM
Ep22- Voltage and current limited source
https://youtu.be/DnKnuJd3-ec
Ep23- Measuring Power Factor
https://youtu.be/qZXOMPxbqh8
Ep24 - Modeling a vacuum tube triode
https://youtu.be/7v9dG1uteAQ
Ep25- Using standard symbols
https://youtu.be/BFMVujjH0lo
Ep26- Modeling transformers
https://youtu.be/muUwe8X51oY
Ep27 - Stepping sets of parameters
https://youtu.be/1iOzX91LJ8g
EP28 - Simulating Quartz crystals
https://youtu.be/MWQCZGXpSSc
Ep29 - Simulating gas discharge tubes
https://youtu.be/W677PWt1CQI
Ep30 - LT tips and tricks
https://youtu.be/koeIYCO3ouA
Ep31 - Modeling switches
https://youtu.be/rxmI0pR9wIM
EP32 - FREQ function
https://youtu.be/Ao16bytrbwc

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