RE: LTSpice Simulation on Mac

BigG — Sat, 23 Mar 2024 21:59:08 GMT

Someone gave me a nudge the other day to give it a another try.

I hadn't bothered playing with it since I switched to LinuxOS as it's a windowsOS based executable. However, for once, LTspice is one of those few applications that works with Wine. Now I'm getting into it.

So, yes I am quite interested in learning more about LTSpice.

In fact, I already have a question.

To kickstart my journey, I started with a breadboard and set up a circuit where I measured the voltage across some capacitors with a 0-5V PWM input signal. I then set up the same/similar circuit on LTspice. As it's only a simulation tool I was not expecting the results to match and that turned out to be the case. So, after playing around a bit I was able to "calibrate" my LTspice to match the output of my oscilliscope by adding in a 25 ohm series resistance in the circuit. Yes a breadboard would have resistance, but I did not think it was that high.

So I wondered, what sort of calibration does one have to do to make sure LTspice provides reasonably accurate real world results.

And for those who are curious as to what I did.

I basically started with a 100kHz square wave and measured this output on my oscilloscope. I then kept adding in small ceramic capacitors in parallel to watch how the oscilloscope output changed. I then replicated this very simple circuit in LTspice.

RE: LTSpice Simulation on Mac

Ueli — Thu, 05 Oct 2023 17:09:08 GMT

Hey there! I followed your post and successfully purchased and uploaded LTSpice XVII on my M1 macbook pro. I also wanted to install TINA-TI but there is no installer to do this. As you have installed it, can you give me any advice on how to achieve this?

Thank you in advance, Ueli