In this article, an LTspice model of a hypothetical ADxxxx device will be used to create an IBIS model. It is a single-input and single-output digital buffer with an enable pin. Thus, the resulting IBIS model will have two inputs (DIN1 and EN) and a three-s...
Use LTspice’s nonlinear capacitor capabilities and a reasonable model.This article describes how LTspice® simulations can be used to account for the effect of voltage dependence, or DC bias, caused by the use of ceramic capacitors with even smaller a
I have a folder containing asc, sub, asy files. I wanted to organize sub and asy files into their respective subfolders, but keeping asc files in the parent folder. But when I did that arrangement and opened an asc file, LTSpice not showing subfolder containing the asy files. How d...
It seems to say that I just need to copy (or create) a similar assembly and point to the spice model *.lib file that I should place in LTSpiceIVlib\sub\private. However, I'm unsure whether the pin order is right (and just exactly what to look at to figure it out, for that ...
It would likely be a good idea to have an adjustable current limit also in place, so that the either the power or the current sets the limit, with automatic change over between constant current and constant power. This would be similar to a lab supply with CC and CV modes. ...
Then after that, all you have to do is place an LC resonant circuit at the output of this square wave to have it change into a sine wave. And that's all that's required to get this to work. Realize that this circuit is precise. Like I said, you have to use the right values fo...
” I don’t know, that seems pretty unambiguous. It seems to me that the safety offered by FOSS code is only incrementally greater than that of proprietary. It’s not orders of magnitude. Indeed, you might be worse off if you place trust in FOSS when you shouldn’t. To use a ...
It typically takes much less time to model and simulate a proposed circuit than to build and test the physical circuit, especially when performing “What-if?” analyses that involve many iterations. Thus, SPICE can provide fast insights while saving time in the initial stages of design and ...
Creating the Model in LTspice Place components for all fixed resistors and the capacitor. Change the values to those shown on the Coilcraft SPICE model document for the inductor being modeled. Place a Glaplace component for each variable resistor and inductor element (typically Rvar1, Rvar2, ...
Spice model of PMOS power switch (Model drawn in LTspice, Source: Elizabeth Simon) Results of running the SPICE simulation (Source: Elizabeth Simon) As we can see, we started with a part that initially appeared to be overkill, and yet we ended up putting three of them in parallel to sha...