I was wishing I could figure out how to do the method that Ken Kundert and others (at least that's how Ken Kundert tells it--I met him when I worked at TI) had developed at Cadence for writing the stb routine in Spectre, modifying Middlebrook's Method. And, I found an article by Frank Wiedman, but the LTspice file "inside" the LTspice app that is already on my hard drive had the answer all along. Ironical. I did not know there were files "inside" the LTspice app.
On my Mac version of LTspice, you have to actually "crack open" the application, and look at the files contained inside it, using the command "Show Package Contents":
/Applications/LTspice --right click, "Show Package Contents"
Contents/examples/Educational/loopgain2.asc
Over on another thread, andy_c, whoever he is, was invaluable at pointing me where to get information on the Tian method of breaking loops, and at loopgain2.asc. I use stb analysis all the time at work, designing ICs in Cadence with Spectre, so I'm a little spoiled.
Don't know why andy_c was banned, but he seems to have been really valuable around here.
--Russell
On my Mac version of LTspice, you have to actually "crack open" the application, and look at the files contained inside it, using the command "Show Package Contents":
/Applications/LTspice --right click, "Show Package Contents"
Contents/examples/Educational/loopgain2.asc
Over on another thread, andy_c, whoever he is, was invaluable at pointing me where to get information on the Tian method of breaking loops, and at loopgain2.asc. I use stb analysis all the time at work, designing ICs in Cadence with Spectre, so I'm a little spoiled.
Don't know why andy_c was banned, but he seems to have been really valuable around here.
--Russell