FesZ Electronics | LTspice tutorial - Feedback loop simulation in linear and switching systems @FesZElectronics | Uploaded August 2019 | Updated October 2024, 1 hour ago.
#46 #ltspice
In this tutorial I take a look at stability issues in power supply circuits - namely feedback loops; How do you simulate the open loop response of a closed loop using LTspice? I explore this topic in both linear and non-linear systems like switching supplies. Its an interesting analysis technique that can provide a lot of value if you know what to look for!

Simulation links:
drive.google.com/open?id=18PBPLCpDVF175OnRZkRieokOOlXGhM3w

Relevant technical documents:
analog.com/en/technical-articles/ltspice-extracting-switch-mode-power-supply-loop-gain-in-simulation-and-why-you-usually-don-t-need.html
ti.com/lit/an/snva020b/snva020b.pdf

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Tutorial series
EP1-Getting started:
youtu.be/JRcyHuyb1V0
EP2-AC simulation and the Baxandall tone control circuit:
youtu.be/P_ENvucaZkI
EP3-.param and .step directives:
youtu.be/ARE5nwiHI0Q
EP4-How to import libraries and component models: youtu.be/8V5XabccFaE
Ep5- Stock example simulations to play with: youtu.be/MwfeMjcM4zY
Ep6- Basics of FFT analysis and .four statment: youtu.be/rVAvW1Jh2AE
EP7- Dependent voltage and current sources
youtu.be/Jn8mJG3qeoo
Ep8- Turning a datasheet into a component model
youtu.be/0smuo8bMRn4
EP9- Independent voltage and current sources
youtu.be/nPZ7vneN3v8
Ep10- .wave statement and audio file processing
youtu.be/mdJm-TzrBsA
Ep11 The effect of temperature on your circuit
youtu.be/VzxnNrOMcMo
EP12 Modeling a DC brushed motor
youtu.be/Wc4XzTrWSpo
Ep13- Worst Case, Monte Carlo and Gaussian statistics circuit analysis
youtu.be/NdGqboW2VcY
EP14 - Digital circuits and logic gates youtu.be/JttE2NObDPM
EP15- SMPS EMI and electrical noise and filters
youtu.be/QEAzcaiBrpY
EP16- Feedback loop simulation
youtu.be/X4yaBwaO1gk
Ep17 - Verifying Simulation Models
youtu.be/DSDiIkKQaAE
Ep18 - Simulating Capacitors
youtu.be/QpWPTolhfEo
Ep 19 - Simulating Inductors
youtu.be/65fNDRows90
EP 20 - Noise simulations
youtu.be/Dh5XmFXlljI
Ep21 - Models and Libraries
youtu.be/GUFMfSlD2AM

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